CVE-2026-27143
CRITICAL9.8EPSS 0.02%Missing bound checks can lead to memory corruption in safe Go in cmd/compile
Published: 4/7/2026Modified: 5/15/2026
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 packages (7)
- Bitnami/golangfrom 0, < 1.25.9, >= 1.26.0, < 1.26.2
- Debian/golang-1.15from 0
- Debian/golang-1.19from 0
- Debian/golang-1.24from 0
- Debian/golang-1.25from 0, < 1.25.9-1
- Debian/golang-1.26from 0, < 1.26.2-1
- Go/toolchainfrom 0, < 1.25.9, >= 1.26.0-0, < 1.26.2
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | CRITICAL9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |