CVE-2026-27140: Code execution vulnerability in SWIG code generation in cmd/go

Overview

Severity

Critical (CVSS 9.8)

CVSS Vector

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

Exploit Status

Not Exploited

Patch Tuesday

2026-Apr

Released

2026-04-11

EPSS Score

0.01% (percentile: 0.6%)

Affected Products (9)

Other

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

Open Source Software

• cbl2 python-tensorboard 2.11.0-3 on CBL Mariner 2.0
• azl3 python-tensorboard 2.16.2-6 on Azure Linux 3.0

Revision History

• 2026-04-11: Information published.