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Security Advisories

GO-2026-4868

https://pkg.go.dev/vuln/GO-2026-4868

Severity

9.8

Critical

CVSS V3

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Summary

Missing bound checks can lead to memory corruption in safe Go in cmd/compile

Description

Arithmetic over induction variables in loops were not correctly checked for underflow or overflow. As a result, the compiler would allow for invalid indexing to occur at runtime, potentially leading to memory corruption.

  • https://nvd.nist.gov/vuln/detail/CVE-2026-27143
  • https://github.com/advisories/GHSA-cfp9-33rc-j74f
  • https://pkg.go.dev/vuln/GO-2026-4868
  • https://go.dev/cl/763765
  • https://go.dev/issue/78333
  • https://groups.google.com/g/golang-announce/c/0uYbvbPZRWU

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