CVE-2026-39817: Invoking "go tool pack" does not sanitize output paths in cmd/go

Overview

Severity

Medium (CVSS 5.9)

CVSS Vector

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

Exploit Status

Not Exploited

Patch Tuesday

2026-May

Released

2026-05-10

Last Updated

2026-06-23

EPSS Score

0.17% (percentile: 6.6%)

Affected Products (6)

Other

• 21203-17084
• 21206-17084
• 21423-17084
• 21021-17084
• 21411-17084

Open Source Software

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

Revision History

• 2026-05-10: Information published.
• 2026-05-11: Information published.
• 2026-05-13: Information published.
• 2026-05-19: Information published.
• 2026-06-03: Information published.
• 2026-06-23: Information published.