CVE-2026-40930: LIBPNG: Chunk smuggling in push-mode APNG parser via unconsumed chunk body
Overview
- Severity
- Medium (CVSS 5.4)
- CVSS Vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L
- Exploit Status
- Not Exploited
- Patch Tuesday
- 2026-Jun
- Released
- 2026-06-09
- EPSS Score
- 0.03% (percentile: 9.5%)
Affected Products (3)
Open Source Software
- azl3 libpng 1.6.58-1 on Azure Linux 3.0
- azl3 tensorflow 2.16.1-11 on Azure Linux 3.0
Mariner
- azl3 qtbase 6.6.3-4 on Azure Linux 3.0
Revision History
- 2026-06-09: Information published.