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Security Advisories

GO-2026-4867

https://pkg.go.dev/vuln/GO-2026-4867

Severity

7.1

High

CVSS V3

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Summary

Miscompilation allows memory corruption via CONVNOP-wrapped array copy in cmd/compile

Description

The compiler is meant to unwrap pointers which are the operands of a memory move; a no-op interface conversion prevented the compiler from making the correct determination about non-overlapping moves, potentially leading to memory corruption at runtime.

  • https://nvd.nist.gov/vuln/detail/CVE-2026-27144
  • https://github.com/advisories/GHSA-cqrx-3m42-5p5w
  • https://pkg.go.dev/vuln/GO-2026-4867
  • https://go.dev/cl/763764
  • https://go.dev/issue/78371
  • https://groups.google.com/g/golang-announce/c/0uYbvbPZRWU

Affected packages

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