What is CVE-2026-27144?

CVE-2026-27144 is a high-severity vulnerability in Golang Go, classified under Access of Resource Using Incompatible Type (Type Confusion). CVSS score: 7.1/10. Published 2026-04-08.

How severe is CVE-2026-27144?

High severity. CVSS v3 base score is 7.1 out of 10.

Vulnerability in Golang Go

CVE-2026-27144

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.

EPSS: 0.003 (17.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H.

Affected products

Golang Go
Go Toolchain Cmd/compile — versions 0, 1.26.0-0

Weakness classification (CWE)

CWE-843 — Access of Resource Using Incompatible Type (Type Confusion)

References

security@golang.org (Patch)
security@golang.org (Issue Tracking)
security@golang.org (Mailing List, Release Notes)
security@golang.org (Vendor Advisory)

Frequently asked questions

What is CVE-2026-27144?: CVE-2026-27144 is a high-severity vulnerability in Golang Go, classified under Access of Resource Using Incompatible Type (Type Confusion). CVSS score: 7.1/10. Published 2026-04-08.
How severe is CVE-2026-27144?: High severity. CVSS v3 base score is 7.1 out of 10.