chore: release v4.0.1 (#876 )

chore: Bump @types/node from 20.7.0 to 20.8.2 (#875 )
Bumps [@types/node](https://github.com/DefinitelyTyped/DefinitelyTyped/tree/HEAD/types/node) from 20.7.0 to 20.8.2. - [Release notes](https://github.com/DefinitelyTyped/DefinitelyTyped/releases) - [Commits](https://github.com/DefinitelyTyped/DefinitelyTyped/commits/HEAD/types/node) --- updated-dependencies: - dependency-name: "@types/node" dependency-type: direct:development update-type: version-update:semver-minor ... Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com> Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com>
2026-08-25 04:35:06 +09:00 · 2023-10-03 11:28:23 -07:00 · 2023-10-03 03:30:03 +00:00 · 2023-10-03 03:27:24 +00:00 · 2023-10-03 03:26:23 +00:00 · 2023-10-03 03:24:10 +00:00
21 changed files with 5050 additions and 4904 deletions
@@ -0,0 +1,51 @@
+name: "Close Stale Issues"
+
+# Controls when the action will run.
+on:
+  workflow_dispatch:
+  schedule:
+  - cron: "0 */4 * * *"
+
+jobs:
+  cleanup:
+    permissions:
+      issues: write
+      contents: read
+      pull-requests: write
+    runs-on: ubuntu-latest
+    name: Stale issue job
+    steps:
+    - uses: aws-actions/stale-issue-cleanup@v5
+      with:
+        # Setting messages to an empty string will cause the automation to skip
+        # that category
+        ancient-issue-message: This issue has not received any attention in 1 year. If you want to keep this issue open, please leave a comment below and auto-close will be canceled.
+        stale-issue-message: This issue has not received a response in a while. If you want to keep this issue open, please leave a comment below and auto-close will be canceled.
+        stale-pr-message: This PR has not received a response in a while. If you want to keep this issue open, please leave a comment below and auto-close will be canceled.
+
+        # These labels are required
+        stale-issue-label: closing-soon
+        exempt-issue-labels: no-autoclose
+        stale-pr-label: closing-soon
+        exempt-pr-labels: no-autoclose
+        response-requested-label: response-requested
+
+        # Don't set closed-for-staleness label to skip closing very old issues
+        # regardless of label
+        closed-for-staleness-label: closed-for-staleness
+
+        # Issue timing
+        days-before-stale: 5
+        days-before-close: 2
+        days-before-ancient: 36500
+
+        # If you don't want to mark a issue as being ancient based on a
+        # threshold of "upvotes", you can set this here. An "upvote" is
+        # the total number of +1, heart, hooray, and rocket reactions
+        # on an issue.
+        minimum-upvotes-to-exempt: 5
+
+        repo-token: ${{ secrets.GITHUB_TOKEN }}
+        loglevel: DEBUG
+        # Set dry-run to true to not perform label or close actions.
+        dry-run: false
@@ -13,7 +13,5 @@ jobs:
        # These inputs are both required
        repo-token: "${{ secrets.GITHUB_TOKEN }}"
        message: |
-          ** Note **
          Comments on closed issues are hard for our team to see.
          If you need more assistance, please either tag a team member or open a new issue that references this one.
-          If you wish to keep having a conversation with other community members under this issue feel free to do so.
@@ -6,6 +6,7 @@ on:
      - main
    paths-ignore:
      - 'dist/**'
+  workflow_dispatch:

 jobs:
  package:
@@ -27,10 +28,10 @@ jobs:
          npm test
          npm run package
      - name: Configure AWS credentials
-        uses: aws-actions/configure-aws-credentials@v3
+        uses: aws-actions/configure-aws-credentials@v4
        with:
          aws-region: us-west-2
-          role-to-assume: ${{ secrets.SECRETS_AWS_ROLE_TO_ASSUME }}
+          role-to-assume: ${{ secrets.SECRETS_AWS_PACKAGING_ROLE_TO_ASSUME }}
          role-duration-seconds: 900
          role-session-name: SecretsManagerFetch
      - name: Get bot user token
@@ -38,7 +39,7 @@ jobs:
        with:
          parse-json-secrets: true
          secret-ids: |
-            OSDS,arn:aws:secretsmanager:us-west-2:294535624312:secret:github-aws-sdk-osds-automation-ZHNalp
+            OSDS,arn:aws:secretsmanager:us-west-2:206735643321:secret:github-aws-sdk-osds-automation-gebs9n
      - name: Commit
        run: |
          echo "::add-mask::${{ env.OSDS_ACCESS_TOKEN }}"
@@ -1,4 +1,4 @@
-name: Run tests
+name: Run Integ tests

 on:
  workflow_dispatch:
@@ -12,7 +12,6 @@ jobs:
      fail-fast: false
      matrix:
        os: [[self-hosted, linux-fargate], windows-latest, ubuntu-latest, macos-latest]
-        node: [14, 16, 18]
    name: Run OIDC integ tests
    runs-on: ${{ matrix.os }}
    timeout-minutes: 30
@@ -27,12 +26,37 @@ jobs:
          role-duration-seconds: 900
          role-session-name: IntegOidcAssumeRole
          role-external-id: ${{ secrets.SECRETS_OIDC_AWS_ROLE_EXTERNAL_ID }}
+  integ-oidc-env:
+    permissions:
+      contents: read
+      id-token: write
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [[self-hosted, linux-fargate], windows-latest, ubuntu-latest, macos-latest]
+    name: Run OIDC integ tests with existing invalid env vars
+    runs-on: ${{ matrix.os }}
+    env:
+      AWS_ACCESS_KEY_ID: dummyaccesskeyid
+      AWS_SECRET_ACCESS_KEY: dummysecretkey
+      AWS_SESSION_TOKEN: dummytoken
+    timeout-minutes: 30
+    steps:
+      - name: "Checkout repository"
+        uses: actions/checkout@v3
+      - name: Integ test for OIDC
+        uses: ./
+        with:
+          aws-region: us-west-2
+          role-to-assume: ${{ secrets.SECRETS_OIDC_AWS_ROLE_TO_ASSUME }}
+          role-duration-seconds: 900
+          role-session-name: IntegOidcAssumeRole
+          role-external-id: ${{ secrets.SECRETS_OIDC_AWS_ROLE_EXTERNAL_ID }}
  integ-access-keys:
    strategy:
      fail-fast: false
      matrix:
        os: [[self-hosted, linux-fargate], windows-latest, ubuntu-latest, macos-latest]
-        node: [14, 16, 18]
    name: Run access key integ tests
    runs-on: ${{ matrix.os }}
    timeout-minutes: 30
@@ -53,7 +77,6 @@ jobs:
      fail-fast: false
      matrix:
        os: [[self-hosted, linux-fargate], windows-latest, ubuntu-latest, macos-latest]
-        node: [14, 16, 18]
    name: Run access key from env integ tests
    runs-on: ${{ matrix.os }}
    timeout-minutes: 30
@@ -75,7 +98,6 @@ jobs:
      fail-fast: false
      matrix:
        os: [[self-hosted, linux-fargate], windows-latest, ubuntu-latest, macos-latest]
-        node: [14, 16, 18]
    name: Run IAM User integ tests
    runs-on: ${{ matrix.os }}
    timeout-minutes: 30
@@ -9,7 +9,6 @@ jobs:
      fail-fast: false
      matrix:
        os: [windows-latest, ubuntu-latest, macos-latest]
-        node: [14, 16, 18]
    name: Run unit tests
    runs-on: ${{ matrix.os }}
    timeout-minutes: 5
@@ -19,7 +18,7 @@ jobs:
      - name: "Setup node"
        uses: actions/setup-node@v3
        with:
-          node-version: ${{ matrix.node }}
+          node-version: 20
      - name: "Install dependencies"
        uses: bahmutov/npm-install@v1
      - name: "Run tests"
@@ -34,7 +33,7 @@ jobs:
      - name: "Setup node"
        uses: actions/setup-node@v3
        with:
-          node-version: 16
+          node-version: 20
      - name: "Install dependencies"
        uses: bahmutov/npm-install@v1
      - name: "Lint code"
@@ -1,8 +1,12 @@
 queue_rules:
  - name: default
    conditions:
-      # Conditions to get out of the queue (= merged)
-      - status-success=Run Unit Tests
+      # Conditions to merge a queued PR
+      - check-success=Run unit tests (windows-latest)
+      - check-success=Run unit tests (ubuntu-latest)
+      - check-success=Run unit tests (macos-latest)
+      - "#approved-reviews-by>=1"
+      - -approved-reviews-by~=author

 pull_request_rules:
  - name: Automatically merge on CI success and review approval
@@ -10,7 +14,9 @@ pull_request_rules:
      - base~=main|integ-tests
      - "#approved-reviews-by>=1"
      - -approved-reviews-by~=author
-      - status-success=Run Unit Tests
+      - check-success=Run unit tests (windows-latest)
+      - check-success=Run unit tests (ubuntu-latest)
+      - check-success=Run unit tests (macos-latest)
      - label!=work-in-progress
      - -title~=(WIP|wip)
      - -merged
@@ -25,7 +31,9 @@ pull_request_rules:
    conditions:
      - base~=main
      - author=dependabot[bot]
-      - status-success=Run Unit Tests
+      - check-success=Run unit tests (windows-latest)
+      - check-success=Run unit tests (ubuntu-latest)
+      - check-success=Run unit tests (macos-latest)
      - -title~=(WIP|wip)
      - -label~=(blocked|do-not-merge)
      - -merged
@@ -2,6 +2,20 @@

 All notable changes to this project will be documented in this file. See [standard-version](https://github.com/conventional-changelog/standard-version) for commit guidelines.

+## [4.0.1](https://github.com/aws-actions/configure-aws-credentials/compare/v4.0.0...v4.0.1) (2023-10-03)
+
+### Documentation
+*  Throw a warning when customers use long-term credentials.
+
+## [4.0.0](https://github.com/aws-actions/configure-aws-credentials/compare/v3.0.2...v4.0.0) (2023-09-11)
+
+* Upgraded runtime to `node20` from `node16`
+
+## [3.0.2](https://github.com/aws-actions/configure-aws-credentials/compare/v3.0.1...v3.0.2) (2023-09-07)
+
+### Bug Fixes
+* fixes #817 #819: validation logic throwing unwanted errors [d78f55b](https://github.com/aws-actions/configure-aws-credentials/commit/d78f55b1db65186cb251a8504ae9527af06fc5fd)
+
 ## [3.0.1](https://github.com/aws-actions/configure-aws-credentials/compare/v3.0.0...v3.0.1) (2023-08-24)

 ### Features
@@ -7,7 +7,23 @@ calls.

 ---

-### News
+### Recent News
+
+#### Long-term credentials warning (10/3/23)
+
+We have added a warning when using long-term credentials to access AWS
+(IAM access keys and secret keys). Using long-term credentials requires you
+to create IAM users and properly secure the access keys to prevent their disclosure.
+A better approach is to use [GitHub's support for OpenID Connect](#OIDC) to authenticate
+using an IAM role to generate temporary security credentials.
+
+#### v4 Announcement (9/11/23)
+
+We have just released `v4` of Configure AWS Credentials. The only thing that
+changed from `v3` is that the action now runs on `node20` instead of `node16`.
+You can still see the `v3` announcement below, as it is still recent.
+
+#### v3 Announcement (8/23/23)

 We have recently released `v3` of Configure AWS Credentials! With this new
 release we have migrated the code to TypeScript, and have also migrated away
@@ -24,7 +40,7 @@ changes should be backwards compatible with your existing workflows.
 _all_ use cases. This is changed from 6 hours in `v2`. You can adjust this value
 with the `role-duration-seconds` input.
 - By default, your account ID will not be masked in workflow logs. This was
-changed from being masked by default in the previous version. AWS does consider
+changed from being masked by default in the previous version. AWS does not consider
 account IDs as sensitive information, so this change reflects that stance. You
 can revert to the old default and mask your account ID in workflow logs by
 setting the `mask-aws-account-id` input to `true`.
@@ -46,7 +62,7 @@ variables are interfering with the action. You can enable this by setting the
 **Bug fixes**

 You can find a list of bugs that have been fixed in v3 in the
-[changelog](./changelog.md).
+[changelog](./CHANGELOG.md).

 ---

@@ -82,7 +98,7 @@ To do that, you would add the following step to your workflow:

 ```yaml
    - name: Configure AWS Credentials
-      uses: aws-actions/configure-aws-credentials@v3
+      uses: aws-actions/configure-aws-credentials@v4
      with:
        role-to-assume: arn:aws:iam::123456789100:role/my-github-actions-role
        aws-region: us-east-2
@@ -111,7 +127,7 @@ jobs:
    - name: Checkout
      uses: actions/checkout@v3
    - name: Configure AWS credentials from Test account
-      uses: aws-actions/configure-aws-credentials@v3
+      uses: aws-actions/configure-aws-credentials@v4
      with:
        role-to-assume: arn:aws:iam::111111111111:role/my-github-actions-role-test
        aws-region: us-east-1
@@ -119,7 +135,7 @@ jobs:
      run: |
        aws s3 sync . s3://my-s3-test-website-bucket
    - name: Configure AWS credentials from Production account
-      uses: aws-actions/configure-aws-credentials@v3
+      uses: aws-actions/configure-aws-credentials@v4
      with:
        role-to-assume: arn:aws:iam::222222222222:role/my-github-actions-role-prod
        aws-region: us-west-2
@@ -209,7 +225,7 @@ within the Action. See [issue 419](https://github.com/aws-actions/configure-aws-
 You can skip this session tagging by providing
 `role-skip-session-tagging` as true in the action's inputs:
 ```yaml
-      uses: aws-actions/configure-aws-credentials@v3
+      uses: aws-actions/configure-aws-credentials@v4
      with:
        role-skip-session-tagging: true
 ```
@@ -220,13 +236,13 @@ You can skip this session tagging by providing
 An IAM policy in stringified JSON format that you want to use as an inline session policy.
 Depending on preferences, the JSON could be written on a single line like this:
 ```yaml
-      uses: aws-actions/configure-aws-credentials@v3
+      uses: aws-actions/configure-aws-credentials@v4
      with:
         inline-session-policy: '{"Version":"2012-10-17","Statement":[{"Sid":"Stmt1","Effect":"Allow","Action":"s3:List*","Resource":"*"}]}'
 ```
 Or we can have a nicely formatted JSON as well:
 ```yaml
-      uses: aws-actions/configure-aws-credentials@v3
+      uses: aws-actions/configure-aws-credentials@v4
      with:
         inline-session-policy: >-
          {
@@ -246,13 +262,13 @@ Or we can have a nicely formatted JSON as well:
 The Amazon Resource Names (ARNs) of the IAM managed policies that you want to use as managed session policies.
 The policies must exist in the same account as the role. You can pass a single managed policy like this:
 ```yaml
-      uses: aws-actions/configure-aws-credentials@v3
+      uses: aws-actions/configure-aws-credentials@v4
      with:
         managed-session-policies: arn:aws:iam::aws:policy/AmazonS3ReadOnlyAccess
 ```
 And we can pass multiple managed policies likes this:
 ```yaml
-      uses: aws-actions/configure-aws-credentials@v3
+      uses: aws-actions/configure-aws-credentials@v4
      with:
         managed-session-policies: |
          arn:aws:iam::aws:policy/AmazonS3ReadOnlyAccess
@@ -291,11 +307,11 @@ We recommend using [GitHub's OIDC provider](https://docs.github.com/en/actions/d

 ### Audience

-When the JWT is created, an audience needs to be specified. By default, the audience is `sts.amazon.com` and this will work for most cases. Changing the default audience may be necessary when using non-default AWS partitions. You can specify the audience through the `audience` input:
+When the JWT is created, an audience needs to be specified. By default, the audience is `sts.amazonaws.com` and this will work for most cases. Changing the default audience may be necessary when using non-default AWS partitions. You can specify the audience through the `audience` input:

 ```yaml
    - name: Configure AWS Credentials for China region audience
-      uses: aws-actions/configure-aws-credentials@v3
+      uses: aws-actions/configure-aws-credentials@v4
      with:
        audience: sts.amazonaws.com.cn
        aws-region: us-east-3
@@ -407,7 +423,7 @@ You can use this action to simply configure the region and account ID in the
 environment, and then use the runner's credentials for all AWS API calls made by
 your Actions workflow:
 ```yaml
-uses: aws-actions/configure-aws-credentials@v3
+uses: aws-actions/configure-aws-credentials@v4
 with:
  aws-region: us-east-2
 ```
@@ -417,7 +433,7 @@ APIs called by your Actions workflow.
 Or, you can use this action to assume a role, and then use the role credentials
 for all AWS API calls made by your Actions workflow:
 ```yaml
-uses: aws-actions/configure-aws-credentials@v3
+uses: aws-actions/configure-aws-credentials@v4
 with:
  aws-region: us-east-2
  role-to-assume: my-github-actions-role
@@ -440,7 +456,7 @@ environment.

 Manually configured proxy:
 ```yaml
-uses: aws-actions/configure-aws-credentials@v3
+uses: aws-actions/configure-aws-credentials@v4
 with:
  aws-region: us-east-2
  role-to-assume: my-github-actions-role
@@ -470,7 +486,7 @@ should include the AWS CLI by default.
 ### AssumeRoleWithWebIdentity (recommended)
 ```yaml
    - name: Configure AWS Credentials
-      uses: aws-actions/configure-aws-credentials@v3
+      uses: aws-actions/configure-aws-credentials@v4
      with:
        aws-region: us-east-2
        role-to-assume: arn:aws:iam::123456789100:role/my-github-actions-role
@@ -481,13 +497,13 @@ In this example, the Action will load the OIDC token from the GitHub-provided en
 ### AssumeRole with role previously assumed by action in same workflow
 ```yaml
    - name: Configure AWS Credentials
-      uses: aws-actions/configure-aws-credentials@v3
+      uses: aws-actions/configure-aws-credentials@v4
      with:
        aws-region: us-east-2
        role-to-assume: arn:aws:iam::123456789100:role/my-github-actions-role
        role-session-name: MySessionName
    - name: Configure other AWS Credentials
-      uses: aws-actions/configure-aws-credentials@v3
+      uses: aws-actions/configure-aws-credentials@v4
      with:
        aws-region: us-east-2
        role-to-assume: arn:aws:iam::987654321000:role/my-second-role
@@ -499,7 +515,7 @@ In this two-step example, the first step will use OIDC to assume the role `arn:a
 ### AssumeRole with static IAM credentials in repository secrets
 ```yaml
    - name: Configure AWS Credentials
-      uses: aws-actions/configure-aws-credentials@v3
+      uses: aws-actions/configure-aws-credentials@v4
      with:
        aws-access-key-id: ${{ secrets.AWS_ACCESS_KEY_ID }}
        aws-secret-access-key: ${{ secrets.AWS_SECRET_ACCESS_KEY }}
@@ -515,7 +531,7 @@ In this example, the secret `AWS_ROLE_TO_ASSUME` contains a string like `arn:aws
 ```yaml
    - name: Configure AWS Credentials 1
      id: creds
-      uses: aws-actions/configure-aws-credentials@v3
+      uses: aws-actions/configure-aws-credentials@v4
      with:
        aws-region: us-east-2
        role-to-assume: arn:aws:iam::123456789100:role/my-github-actions-role
@@ -524,7 +540,7 @@ In this example, the secret `AWS_ROLE_TO_ASSUME` contains a string like `arn:aws
      run: |
        aws sts get-caller-identity
    - name: Configure AWS Credentials 2
-      uses: aws-actions/configure-aws-credentials@v3
+      uses: aws-actions/configure-aws-credentials@v4
      with:
        aws-region: us-east-2
        aws-access-key-id: ${{ steps.creds.outputs.aws-access-key-id }}
@@ -3307,7 +3307,7 @@ Apache-2.0
   limitations under the License.


-@aws-sdk/node-http-handler
+@aws-sdk/region-config-resolver
 Apache-2.0
 Apache License
                           Version 2.0, January 2004
@@ -2,7 +2,7 @@
 name: '"Configure AWS Credentials" Action for GitHub Actions'
 description: Configures AWS credentials for use in subsequent steps in a GitHub Action workflow
 runs:
-  using: node16
+  using: node20
  main: dist/index.js
  post: dist/cleanup/index.js
 branding:
@@ -20,7 +20,7 @@ jobs:
    - name: Checkout
      uses: actions/checkout@v3
    - name: Configure AWS Credentials
-      uses: aws-actions/configure-aws-credentials@v3
+      uses: aws-actions/configure-aws-credentials@v4
      with:
        aws-region: us-east-1
        ## the following creates an ARN based on the values entered into github secrets
@@ -1,6 +1,6 @@
 # federated-setup

-## [github-action-oidc-federation](./github-actions-odic-federation.yml)
+## [github-action-oidc-federation](./github-actions-oidc-federation.yml)

 Setup of the OIDC federation between your GitHub Organization/repository and your AWS account.

@@ -14,34 +14,34 @@
  },
  "devDependencies": {
    "@aws-sdk/credential-provider-env": "^3.186.0",
-    "@aws-sdk/property-provider": "^3.188.0",
-    "@jest/globals": "^29.1.2",
-    "@types/jest": "^29.1.2",
-    "@types/node": "^14",
-    "@typescript-eslint/eslint-plugin": "^5",
-    "@typescript-eslint/parser": "^5",
-    "@vercel/ncc": "^0.34.0",
-    "aws-sdk-client-mock": "^2.0.0",
+    "@smithy/property-provider": "^2.0.11",
+    "@jest/globals": "^29.7.0",
+    "@types/jest": "^29.5.5",
+    "@types/node": "^20",
+    "@typescript-eslint/eslint-plugin": "<=5.62.0",
+    "@typescript-eslint/parser": "<=5.62.0",
+    "@vercel/ncc": "^0.38.0",
+    "aws-sdk-client-mock": "^3.0.0",
    "copyfiles": "^2.4.1",
-    "del-cli": "^5.0.0",
+    "del-cli": "^5.1.0",
    "eslint": "^8",
-    "eslint-config-prettier": "^8.5.0",
+    "eslint-config-prettier": "^9.0.0",
    "eslint-import-resolver-node": "^0.3.6",
-    "eslint-import-resolver-typescript": "^3.5.1",
-    "eslint-plugin-import": "^2.26.0",
-    "eslint-plugin-prettier": "^4.2.1",
-    "jest": "^29.1.2",
-    "jest-junit": "^13",
+    "eslint-import-resolver-typescript": "^3.6.1",
+    "eslint-plugin-import": "^2.28.1",
+    "eslint-plugin-prettier": "^5.0.0",
+    "jest": "^29.7.0",
+    "jest-junit": "^16",
    "json-schema": "^0.4.0",
-    "prettier": "^2.7.1",
+    "prettier": "^3.0.3",
    "standard-version": "^9",
    "ts-jest": "^29.0.3",
-    "typescript": "^4.8.4"
+    "typescript": "^5.2.2"
  },
  "dependencies": {
-    "@actions/core": "^1.10.0",
+    "@actions/core": "^1.10.1",
    "@aws-sdk/client-sts": "^3",
-    "@aws-sdk/node-http-handler": "^3",
+    "@smithy/node-http-handler": "^2.1.6",
    "https-proxy-agent": "^5.0.0"
  },
  "keywords": [
@@ -1,6 +1,6 @@
 import { info } from '@actions/core';
 import { STSClient } from '@aws-sdk/client-sts';
-import { NodeHttpHandler } from '@aws-sdk/node-http-handler';
+import { NodeHttpHandler } from '@smithy/node-http-handler';
 import { HttpsProxyAgent } from 'https-proxy-agent';
 import { errorMessage } from './helpers';

@@ -56,6 +56,12 @@ async function assumeRoleWithWebIdentityTokenFile(

 async function assumeRoleWithCredentials(params: AssumeRoleCommandInput, client: STSClient) {
  core.info('Assuming role with user credentials');
+  if (!process.env['AWS_SESSION_TOKEN']) {
+    core.warning(
+      'To avoid using long-term AWS credentials, please update your workflows to authenticate using OpenID Connect.' +
+        ' See https://s12d.com/gha-oidc-aws for more information.'
+    );
+  }
  try {
    const creds = await client.send(new AssumeRoleCommand({ ...params }));
    return creds;
@@ -128,15 +128,13 @@ export async function run() {
      // the source credentials to already be masked as secrets
      // in any error messages.
      exportCredentials({ AccessKeyId, SecretAccessKey, SessionToken });
-    } else if (
-      !webIdentityTokenFile &&
-      !roleChaining &&
-      !(process.env['AWS_ACCESS_KEY_ID'] && process.env['AWS_SECRET_ACCESS_KEY'])
-    ) {
-      throw new Error('Could not determine how to assume credentials. Please check your inputs and try again.');
+    } else if (!webIdentityTokenFile && !roleChaining) {
+      // Proceed only if credentials can be picked up
+      await credentialsClient.validateCredentials();
+      sourceAccountId = await exportAccountId(credentialsClient, maskAccountId);
    }

-    if (AccessKeyId || roleChaining || (process.env['AWS_ACCESS_KEY_ID'] && process.env['AWS_SECRET_ACCESS_KEY'])) {
+    if (AccessKeyId || roleChaining) {
      // Validate that the SDK can actually pick up credentials.
      // This validates cases where this action is using existing environment credentials,
      // and cases where the user intended to provide input credentials but the secrets inputs resolved to empty strings.
@@ -6,7 +6,7 @@ import {
  STSClient,
 } from '@aws-sdk/client-sts';
 import { fromEnv } from '@aws-sdk/credential-provider-env';
-import { CredentialsProviderError } from '@aws-sdk/property-provider';
+import { CredentialsProviderError } from '@smithy/property-provider';
 import { mockClient } from 'aws-sdk-client-mock';
 import { withsleep, reset } from '../src/helpers';
 import { run } from '../src/index';
@@ -105,6 +105,9 @@ describe('Configure AWS Credentials', () => {
    jest.spyOn(core, 'info').mockImplementation((string) => {
      return string;
    });
+    jest.spyOn(core, 'warning').mockImplementation((string) => {
+      return string;
+    });
    (fromEnv as jest.Mock)
      .mockImplementationOnce(() => () => ({
        accessKeyId: FAKE_ACCESS_KEY_ID,
@@ -202,7 +205,7 @@ describe('Configure AWS Credentials', () => {
    await run();

    expect(core.setFailed).toHaveBeenCalledWith(
-      'Could not determine how to assume credentials. Please check your inputs and try again.'
+      'Credentials could not be loaded, please check your action inputs: Could not load credentials from any providers'
    );
  });

@@ -217,7 +220,7 @@ describe('Configure AWS Credentials', () => {
    await run();

    expect(core.setFailed).toHaveBeenCalledWith(
-      'Could not determine how to assume credentials. Please check your inputs and try again.'
+      'Credentials could not be loaded, please check your action inputs: Access key ID empty after loading credentials'
    );
  });

@@ -508,6 +511,8 @@ describe('Configure AWS Credentials', () => {
  });

  test('GH OIDC check fails if token is not set', async () => {
+    (fromEnv as jest.Mock).mockReset();
+    process.env['ACTIONS_ID_TOKEN_REQUEST_TOKEN'] = undefined;
    process.env['GITHUB_ACTIONS'] = 'true';
    jest.spyOn(core, 'getInput').mockImplementation(
      mockGetInput({
@@ -523,11 +528,12 @@ describe('Configure AWS Credentials', () => {
        ' If you are not trying to authenticate with OIDC and the action is working successfully, you can ignore this message.'
    );
    expect(core.setFailed).toHaveBeenCalledWith(
-      'Could not determine how to assume credentials. Please check your inputs and try again.'
+      'Credentials could not be loaded, please check your action inputs: provider is not a function'
    );
  });

  test('Assume role with existing credentials if nothing else set', async () => {
+    process.env['ACTIONS_ID_TOKEN_REQUEST_TOKEN'] = undefined;
    process.env['AWS_ACCESS_KEY_ID'] = FAKE_ACCESS_KEY_ID;
    process.env['AWS_SECRET_ACCESS_KEY'] = FAKE_SECRET_ACCESS_KEY;
    jest.spyOn(core, 'getInput').mockImplementation(
@@ -865,4 +871,23 @@ describe('Configure AWS Credentials', () => {

    expect(core.setOutput).toHaveBeenCalledTimes(4);
  });
+
+  test('prints warning for access key usage and no session token', async () => {
+    jest.spyOn(core, 'getInput').mockImplementation(mockGetInput(ASSUME_ROLE_INPUTS));
+
+    await run();
+
+    expect(core.warning).toHaveBeenCalledWith(
+      'To avoid using long-term AWS credentials, please update your workflows to authenticate using OpenID Connect.' +
+        ' See https://s12d.com/gha-oidc-aws for more information.'
+    );
+  });
+
+  test('skips warning for access key usage with session token', async () => {
+    jest.spyOn(core, 'getInput').mockImplementation(mockGetInput(DEFAULT_INPUTS));
+
+    await run();
+
+    expect(core.warning).toHaveBeenCalledTimes(0);
+  });
 });