cmd/go: go tool pack Does Not Sanitize Output Paths

This CVE does not affect KrakenD

This is a build-time vulnerability in the Go build tool (cmd/go). KrakenD distributes pre-compiled binaries and does not invoke the Go toolchain at runtime. End users running KrakenD as a gateway are not affected.

Addressed through routine dependency maintenance in CE 2.13.5 and EE 2.13.3.

Component

Go standard library (cmd/go)

Disclosed

May 11, 2026

Description

Go’s cmd/go go tool pack command does not sanitize output path names, allowing a maliciously crafted archive to write files to arbitrary locations outside the intended output directory via path traversal sequences in archive entry names.

References

View CVE-2026-39817 on Go Issue Tracker

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