CVE-2026-27143

critical

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.

References

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

https://groups.google.com/g/golang-announce/c/0uYbvbPZRWU

https://go.dev/issue/78333

https://go.dev/cl/763765

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-20004

Details

Source: Mitre, NVD

Published: 2026-04-08

Updated: 2026-07-25

Named Vulnerability: GO-2026-4868Named Vulnerability: GHSA-cfp9-33rc-j74f

Risk Information

CVSS v2

Base Score: 10

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

Severity: Critical

CVSS v3

Base Score: 9.8

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H