chore: pin GitHub Actions to commit SHAs#3
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Pin every `uses:` ref in .github/workflows and composite actions to a
full 40-character commit SHA, with the original tag preserved as a
comment, e.g.
uses: actions/checkout@11bd719 # v4
Tags and branches are mutable; commit SHAs are not. Pinning to a SHA
closes a supply-chain vector where a compromised action could replace
what runs in CI without changing the tag we reference.
Generated mechanically with `pinact run`
(https://github.com/suzuki-shunsuke/pinact). No version bumps were
applied (strict pin).
gbotrel
added a commit
that referenced
this pull request
May 26, 2026
Per optim_plan_ideas.md #3 option B: the Encode path was FFTInverse(DIF) → BitReverse → FFT(DIF) → BitReverse, where each BitReverse on N up to 2^20 fell through gnark-crypto's threshold to `bitReverseNaive` (~5.9% of Prove CPU). We instead scatter the n bit-reversed inverse-FFT coefficients directly into N bit-reversed positions (zero-padding the gaps) and run the forward FFT in DIT order, which consumes bit-reversed input and produces normal output — no explicit BitReverse needed. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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Summary
Pin every
uses:ref in.github/workflows/(and any composite actionfiles) to a full 40-character commit SHA, with the original tag
preserved as a
# vXcomment.Why
Tags and branches are mutable, so a compromised action can replace what
runs in our pipelines without changing the tag we reference. Pinning to
a SHA closes that supply-chain vector. See GitHub's hardening guide:
https://docs.github.com/en/actions/security-guides/security-hardening-for-github-actions#using-third-party-actions.
Deadline
TechOps is enforcing SHA-pinned GitHub Actions across the org by
June 8, 2026. Merging this PR brings the repo into compliance ahead
of the cut-over; after that date workflows that still reference
mutable tags or branches will be blocked from running.
How
Generated mechanically with
pinact run.No version bumps were applied (strict pin); follow-up upgrades can come
from Renovate or a separate
pinact run -uPR.Test plan
Note
Low Risk
Low risk: this only pins existing GitHub Actions (
checkout,setup-go,codecov) to immutable commit SHAs, with no changes to the test/coverage commands themselves.Overview
Pins the
Go Test & Coverageworkflow’s third-party actions (actions/checkout,actions/setup-go,codecov/codecov-action) to full commit SHAs (with version comments) instead of mutable tags, hardening CI against upstream tag changes.Reviewed by Cursor Bugbot for commit 308090d. Bugbot is set up for automated code reviews on this repo. Configure here.