ci: enhance backport workflow security#1977
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RafilxTenfen merged 1 commit intomainfrom Mar 16, 2026
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mpastecki
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Reviewed: SHA 9565281eda0731b1d20c4025c43339fb0a23812e verified against current tibdex/backport v2 tag. Permissions correctly scoped to minimum required (contents: write, pull-requests: write). LGTM.
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Pinned action to commit SHA — tibdex/backport@9565281 # v2. A compromised or force-pushed v2 tag can no longer substitute malicious code; the runner will only execute the exact commit that was audited. Restricted permissions — added an explicit block with only contents: write (to push the backport branch) and pull-requests: write (to open the PR and post comments). All other permissions (actions, id-token, packages, etc.) default to none, limiting blast radius if the action is ever abused. (cherry picked from commit 65d793a)
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Pinned action to commit SHA — tibdex/backport@9565281 # v2. A compromised or force-pushed v2 tag can no longer substitute malicious code; the runner will only execute the exact commit that was audited.
Restricted permissions — added an explicit block with only contents: write (to push the backport branch) and pull-requests: write (to open the PR and post comments). All other permissions (actions, id-token, packages, etc.) default to none, limiting blast radius if the action is ever abused.