chore(security): harden publish workflow vs Mini Shai-Hulud#6
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…shai-hulud) Mitigations vs the Mini Shai-Hulud npm supply-chain campaign (2026-05-11) that hijacked TanStack/Mistral/UiPath/OpenSearch publish runners mid-OIDC flow and forged signed provenance attestations. - Pin actions/checkout, actions/setup-node, step-security/harden-runner to SHAs to defeat tag-rewrite attacks. - Add step-security/harden-runner with egress allowlist (blocks getsession.org, IMDS 169.254.169.254, vault.svc.cluster.local). - Pass --ignore-scripts to npm ci to block transitive postinstall scripts (the worm's vector). Our own publish lifecycle (prepublishOnly/prepack) still runs via npm publish. - Add contents: read to job permissions; keep id-token: write. Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
This was referenced May 13, 2026
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Summary
Hardens the standalone publish workflow vs Mini Shai-Hulud npm supply-chain campaign (2026-05-11). See companion PR brickhouse-tech/.github#7.
Local audit confirmed we are not breached — last `@brickhouse-tech/xml2js` publish (1.1.8, 2026-04-04) predates the attack by 5 weeks. This is preemptive hardening for the next release.
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Test plan
🤖 Generated with Claude Code