CVE-2026-33416: LIBPNG has use-after-free via pointer aliasing in `png_set_tRNS` and `png_set_PLTE`
Overview
- Severity
- High (CVSS 7.5)
- CVSS Vector
- CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
- Exploit Status
- Not Exploited
- Patch Tuesday
- 2026-Mar
- Released
- 2026-03-29
- Last Updated
- 2026-04-02
- EPSS Score
- 0.05% (percentile: 15.8%)
Affected Products (8)
Open Source Software
- cbl2 qt5-qtbase 5.12.11-19 on CBL Mariner 2.0
- cbl2 tensorflow 2.11.1-2 on CBL Mariner 2.0
- azl3 tensorflow 2.16.1-11 on Azure Linux 3.0
- azl3 libpng 1.6.55-1 on Azure Linux 3.0
- cbl2 libpng 1.6.55-1 on CBL Mariner 2.0
Mariner
- cbl2 syslinux 6.04-10 on CBL Mariner 2.0
- azl3 qtbase 6.6.3-4 on Azure Linux 3.0
- azl3 syslinux 6.04-11 on Azure Linux 3.0
Revision History
- 2026-03-29: Information published.
- 2026-03-30: Information published.
- 2026-03-31: Information published.
- 2026-03-31: Information published.
- 2026-04-02: Information published.