fix(security): require Go 1.26.4 to patch html/template XSS#21
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The new govulncheck gate flagged the go.mod `go 1.26.1` directive: that toolchain's html/template has three reachable escaper-bypass XSS bugs (GO-2026-4865, GO-2026-4980, GO-2026-4982), fixed in 1.26.2/1.26.3. This is reachable in prod, not just CI noise: `gitcortex report` renders git data into HTML via html/template (report.GenerateProfile -> template.Execute), so release binaries built on 1.26.1 shipped the vulnerable escaper. Bumping the directive makes setup-go install a patched toolchain everywhere (go-version-file: go.mod) and turns the govulncheck gate green. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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The new govulncheck gate flagged the go.mod
go 1.26.1directive: that toolchain's html/template has three reachable escaper-bypass XSS bugs (GO-2026-4865, GO-2026-4980, GO-2026-4982), fixed in 1.26.2/1.26.3.This is reachable in prod, not just CI noise:
gitcortex reportrenders git data into HTML via html/template (report.GenerateProfile -> template.Execute), so release binaries built on 1.26.1 shipped the vulnerable escaper. Bumping the directive makes setup-go install a patched toolchain everywhere (go-version-file: go.mod) and turns the govulncheck gate green.