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[release-v0.37.x] Security: Fix stdlib CVEs (go1.25.13) - #3137

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[release-v0.37.x] Security: Fix stdlib CVEs (go1.25.13)#3137
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fix/SRVKP-13176-stdlib-go1.25.13-release-v0.37.x-attempt-1

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Changes

Bump Go stdlib from go 1.25.12 to go 1.25.13 to fix four vulnerabilities confirmed by govulncheck on the release-v0.37.x branch.

Vulnerabilities fixed:

Advisory Package Description Severity
GO-2026-6218 net/url Quadratic complexity in resolvePath Important (CVSS 7.5)
GO-2026-6090 crypto/tls Unbounded post-handshake messages Important (CVSS 7.5)
GO-2026-5972 encoding/asn1 Missing max recursion depth Important (CVSS 7.5)
GO-2026-5026 net/http Punycode-encoded label rejection in idna Important (CVSS 7.5)

Related Jira: SRVKP-13176 (FedRAMP ConMon scan — pipelines-cli-tkn-rhel9, Pipelines 1.15)

Note: grpc fix (GHSA-hrxh-6v49-42gf) covered by PR #3133 on this branch.

Changes Applied

  • go.mod: go 1.25.12go 1.25.13
  • go mod tidy
  • go mod verify ✅ (all modules verified)
  • go mod vendor

Submitter Checklist

  • Includes tests (dependency-only update, no logic changes)
  • Run the code checkers with make check
  • Regenerate the manpages, docs and go formatting with make generated
  • Commit messages follow commit message best practices

Release Notes

NONE

🤖 Generated by CVE Fixer Workflow

Addresses four stdlib vulnerabilities confirmed by govulncheck:
- GO-2026-6218: Quadratic complexity in net/url.resolvePath
- GO-2026-6090: Unbounded post-handshake messages in crypto/tls
- GO-2026-5972: Max recursion depth in encoding/asn1
- GO-2026-5026: Punycode-encoded label rejection in net/http

Related: SRVKP-13176

Co-Assisted-By: Claude Sonnet 4.6 <noreply@anthropic.com>
@tekton-robot tekton-robot added the release-note-none Denotes a PR that doesnt merit a release note. label Aug 16, 2026
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@tekton-robot tekton-robot added the size/XS Denotes a PR that changes 0-9 lines, ignoring generated files. label Aug 16, 2026
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