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ci: declare workflow-level contents: read on 2 workflows#3603

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oldergod merged 1 commit into
square:masterfrom
arpitjain099:chore/declare-workflow-perms-readonly
May 20, 2026
Merged

ci: declare workflow-level contents: read on 2 workflows#3603
oldergod merged 1 commit into
square:masterfrom
arpitjain099:chore/declare-workflow-perms-readonly

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@arpitjain099
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Pins the default GITHUB_TOKEN to contents: read on 2 workflows in .github/workflows/ that don't call a GitHub API beyond the initial checkout.

Why

CVE-2025-30066 (March 2025 tj-actions/changed-files supply-chain compromise) exfiltrated GITHUB_TOKEN from workflow logs. Pinning per workflow caps runtime authority irrespective of the repo or org default, gives drift protection if the default ever widens, and is credited per-file by the OpenSSF Scorecard Token-Permissions check.

YAML validated locally with yaml.safe_load on each touched file.

Pins the default GITHUB_TOKEN to contents: read on workflows that don't
call a GitHub API beyond the initial checkout. Other workflows that need
write scopes are left implicit for a maintainer to declare.

Motivation: CVE-2025-30066 (March 2025 tj-actions/changed-files
compromise) exfiltrated GITHUB_TOKEN from workflow logs. Per-workflow
caps bound runtime authority irrespective of repo or org default,
give drift protection, and are credited per-file by the OpenSSF
Scorecard Token-Permissions check.

YAML validated locally with yaml.safe_load.

Signed-off-by: Arpit Jain <arpitjain099@gmail.com>
@oldergod
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oldergod commented May 18, 2026

Thank you @arpitjain099
Could you sign the CLA so that I can merge it?

  • wait for CLA to merge

@arpitjain099
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Thank you @arpitjain099 Could you sign the CLA so that I can merge it?

@oldergod Thank you, signed CLA

@oldergod
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@arpitjain099 I do not see your entry in our CLA records unfortunately.

@arpitjain099
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@arpitjain099 I do not see your entry in our CLA records unfortunately.

@oldergod my bad, sorry. Signed CLA

@oldergod oldergod merged commit 1655af9 into square:master May 20, 2026
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Thank you

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2 participants