build(deps): bump golang.org/x/net from v0.52.0 to v0.53.0#1269
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rdimitrov merged 2 commits intomodelcontextprotocol:mainfrom May 8, 2026
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…check govulncheck started failing CI (incl. all open Dependabot PRs) after the 2026-05 Go security release. Six stdlib vulnerabilities (GO-2026-4986, 4982, 4980, 4977, 4971, 4918) require go1.26.3, and GO-2026-4918 also requires golang.org/x/net@v0.53.0. The setup-go 'stable' channel is still resolving to 1.26.2 from the runner toolchain cache; pin '>=1.26.3' in ci.yml so govulncheck and the build/test jobs always see a patched stdlib. Verified locally with GOTOOLCHAIN=go1.26.3: "No vulnerabilities found." Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Keep go-version: 'stable' so future Go security releases land in CI automatically instead of requiring a workflow edit. The stdlib portion of the alerts will clear once the actions/go-versions manifest publishes 1.26.3; the third-party x/net bump in this branch already addresses the piece we control. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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Summary
Bumps
golang.org/x/netfromv0.52.0tov0.53.0to addressGO-2026-4918(HTTP/2 transport infinite loop on badSETTINGS_MAX_FRAME_SIZE).go mod tidyalso pullsgolang.org/x/cryptoto v0.50.0 andgolang.org/x/textto v0.36.0.Why now
govulncheckis failing onmainand every open Dependabot PR (#1263, #1264, #1265) after the 2026-05 Go security release. The findings split into:golang.org/x/net@v0.52.0→ fixed inv0.53.0. Addressed here.GO-2026-4986,4982,4980,4977,4971, and the stdlib half of4918) — all fixed ingo1.26.3. We deliberately do not pin a Go patch in the workflow:go-version: 'stable'will pick up1.26.3automatically once theactions/go-versionsmanifest catches up, with no workflow maintenance.Test plan
go build ./...go vet ./...GOTOOLCHAIN=go1.26.3 govulncheck ./...→ "No vulnerabilities found."🤖 Generated with Claude Code