Skip to content
CVE PROGRAM SOURCE RECORD9.8 Critical

CVE-2026-27143

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Go toolchain cmd/compile

Default version status: unaffected

  • 0 to < 1.25.9affected
  • 1.26.0-0 to < 1.26.2affected

References