CVE-2026-69153: PostCSS: incomplete fix of CVE-2026-45623 — attacker-controlled sourceMappingURL reads arbitrary .map files when `from` is unset

Overview

Severity
Medium (CVSS 5.3)
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Exploit Status
Not Exploited
Patch Tuesday
2026-Aug
Released
2026-08-07
EPSS Score
0.31% (percentile: 23.7%)

Affected Products (1)

Open Source Software

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

Revision History

  • 2026-08-07: Information published.