CVE-2026-16729: undici vulnerable to cookie attribute injection via unsanitized domain and unparsed setCookie fields

Overview

Severity

Medium (CVSS 4.8)

CVSS Vector

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

Exploit Status

Not Exploited

Patch Tuesday

2026-Jul

Released

2026-08-07

Last Updated

2026-09-09

EPSS Score

0.19% (percentile: 9.0%)

Affected Products (2)

Other

• 21671-17084
• 21792-17084

Security Updates (1)

• Security Update

Revision History

• 2026-08-07: Information published.
• 2026-09-05: Information published.
• 2026-09-09: Information published.