CVE-2026-27144: Miscompilation allows memory corruption via CONVNOP-wrapped array copy in cmd/compile

Overview

Severity

High (CVSS 7.7)

CVSS Vector

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

Exploit Status

Not Exploited

Patch Tuesday

2026-Apr

Released

2026-04-11

EPSS Score

0.01% (percentile: 0.7%)

Affected Products (8)

Other

• 20519-17086
• 20387-17086
• 21113-17084
• 21116-17084
• 21117-17086
• 19668-17086
• 21021-17084

Open Source Software

• azl3 python-tensorboard 2.16.2-6 on Azure Linux 3.0

Revision History

• 2026-04-11: Information published.