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openSUSE 15.6 libpng16 Important Issue and Update 2026-1368-1

suse
Calendar Grey April 15, 2026
Scroller Suse
Critical update for libpng16 addresses important vulnerabilities affecting multiple SUSE distributions. Install recommended patches now.
An update that solves two vulnerabilities can now be installed.

Summary

## This update for libpng16 fixes the following issues: * CVE-2026-33416: use-after-free via pointer aliasing in `png_set_tRNS` and `png_set_PLTE` can lead to arbitrary code execution (bsc#1260754). * CVE-2026-33636: out-of-bounds read/write in the palette expansion on ARM Neon can lead to information leak and crashes (bsc#1260755). ## Patch Instructions: To install this SUSE update use the SUSE recommended installation methods like YaST online_update or "zypper patch". Alternatively you can run the command listed for your product: * openSUSE Leap 15.6 zypper in -t patch SUSE-2026-1368=1 openSUSE-SLE-15.6-2026-1368=1 * Basesystem Module 15-SP7 zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP7-2026-1368=1 * SUSE Linux Enterprise Server 15 SP6 LTSS

Topics%20covered

Topics Covered

security advisory information leak arbitrary code execution important OpenSUSE libpng16

References

* bsc#1260754

* bsc#1260755

Cross-

* CVE-2026-33416

* CVE-2026-33636

CVSS scores:

* CVE-2026-33416 ( SUSE ): 9.2

CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

* CVE-2026-33416 ( SUSE ): 8.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

* CVE-2026-33416 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

* CVE-2026-33636 ( SUSE ): 8.3

CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N

* CVE-2026-33636 ( SUSE ): 8.6 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H

* CVE-2026-33636 ( NVD ): 7.6 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:H

Affected Products:

* Basesystem Module 15-SP7

* openSUSE Leap 15.6

* SUSE Linux Enterprise Desktop 15 SP7

* SUSE Linux Enterprise Real Time 15 SP7

* SUSE Linux Enterprise Server 15 SP6

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2026:1368-1
Release Date: 2026-04-15T14:35:40Z
Rating: important

Topics%20covered

Topics Covered

security advisory information leak arbitrary code execution important OpenSUSE libpng16

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