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fix(aws-credentials): default the OIDC audience to sts.amazonaws.com #40

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Merged
domengabrovsek merged 1 commit into from
Aug 11, 2026
Merged

fix(aws-credentials): default the OIDC audience to sts.amazonaws.com #40

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9 changes: 6 additions & 3 deletions .github/actions/aws-credentials/action.yml
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Original file line number Diff line number Diff line change
Expand Up @@ -14,9 +14,9 @@ inputs:
required: false
default: ''
audience:
description: OIDC audience for the web identity token.
description: OIDC audience for the web identity token. Defaults to sts.amazonaws.com.
required: false
default: ''
default: sts.amazonaws.com
role-duration-seconds:
description: Lifetime of the assumed-role credentials, in seconds.
required: false
Expand All @@ -42,7 +42,10 @@ runs:
aws-region: ${{ inputs.aws-region }}
role-to-assume: ${{ inputs.role-to-assume }}
role-session-name: ${{ inputs.role-session-name }}
audience: ${{ inputs.audience }}
# Coalesced, not forwarded bare: an empty string overrides the wrapped action's own
# default rather than falling back to it, and an empty audience makes GitHub mint the
# token with aud=https://github.com/<owner>, which STS then rejects.
audience: ${{ inputs.audience || 'sts.amazonaws.com' }}
role-duration-seconds: ${{ inputs.role-duration-seconds }}
aws-access-key-id: ${{ inputs.aws-access-key-id }}
aws-secret-access-key: ${{ inputs.aws-secret-access-key }}
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2 changes: 1 addition & 1 deletion docs/actions/aws-credentials.md
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Expand Up @@ -19,7 +19,7 @@ OIDC role assumption needs `permissions: id-token: write` on the job.
| `aws-region` | required | AWS region to configure. |
| `role-to-assume` | `''` | IAM role ARN to assume via OIDC. Leave blank when using static keys. |
| `role-session-name` | `''` | Session name for the assumed role. |
| `audience` | `''` | OIDC audience for the web identity token. |
| `audience` | `sts.amazonaws.com` | OIDC audience for the web identity token. Leave unset unless your IAM OIDC provider expects a different audience. |
| `role-duration-seconds` | `''` | Lifetime of the assumed-role credentials, in seconds. |
| `aws-access-key-id` | `''` | Static access key ID, as an alternative to `role-to-assume`. |
| `aws-secret-access-key` | `''` | Static secret access key. |
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