fix(cve): CVE-2026-42499, CVE-2026-39820 - update Go 1.25.9 to 1.25.10 [release-v0.42.2]#2921
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- Update Go stdlib from 1.25.9 to 1.25.10 - Addresses CVE-2026-42499: Quadratic string concatenation in consumePhrase in net/mail - Addresses CVE-2026-39820: Quadratic string concatenation in consumeComment in net/mail - Both vulnerabilities allow DoS via pathological email address inputs Resolves: SRVKP-12511, SRVKP-12514 Co-Assisted-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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CVE Details
net/mail(stdlib)net/mail(stdlib)Description
consumePhraseinnet/mail. Pathological inputs could cause DoS when parsing email addresses according to RFC 5322.consumeCommentinnet/mail. Well-crafted inputs reachingParseAddress,ParseAddressList, andParseDatecould trigger excessive CPU exhaustion and memory allocations.Fix Summary
Updated
godirective ingo.modfrom1.25.9to1.25.10. This is a Go stdlib patch release that includes the security fixes for both CVEs. No vendor directory changes were required (stdlib fix only).Test Results
Status: ✅ PASSED
All unit tests passed with the updated Go version.
Breaking Changes
None. This is a patch-level stdlib update (1.25.9 → 1.25.10) with no API changes.
Jira References
SRVKP-12511
SRVKP-12514
Verification Steps
go versionin the build environment matches1.25.10or highergovulncheck -scan package ./...no longer reports GO-2026-4977 or GO-2026-4986go test -mod=vendor ./...Risk Assessment
Low — Patch-level Go version bump. Fixes two DoS vulnerabilities in
net/mail. ThetknCLI does not directly callnet/mailfunctions but benefits from the updated stdlib in case of transitive use. All tests pass.