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SUSE 2026 1352-1 Expat Important NULL Pointer DoS Advisory

suse
Calendar Grey April 15, 2026
Scroller Suse
Important update for SUSE to fix three issues in expat causing threats like NULL pointer dereference and DoS.
An update that solves three vulnerabilities can now be installed.

Summary

## This update for expat fixes the following issues: * CVE-2026-32776: NULL pointer dereference when processing empty external parameter entities inside an entity declaration value (bsc#1259726). * CVE-2026-32777: denial of service due to infinite loop in DTD content parsing (bsc#1259711). * CVE-2026-32778: NULL pointer dereference in `setContext` on retry after an out-of-memory condition (bsc#1259729). ## 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: * Basesystem Module 15-SP7 zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP7-2026-1352=1 ## Package List: * Basesystem Module 15-SP7 (aarch64 ppc64le s390x x86_64)

Topics%20covered

Topics Covered

security advisory denial of service SuSE important expat NULL pointer dereference

References

* bsc#1259711

* bsc#1259726

* bsc#1259729

Cross-

* CVE-2026-32776

* CVE-2026-32777

* CVE-2026-32778

CVSS scores:

* CVE-2026-32776 ( SUSE ): 8.7

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

* CVE-2026-32776 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

* CVE-2026-32776 ( NVD ): 4.0 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

* CVE-2026-32776 ( NVD ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

* CVE-2026-32777 ( SUSE ): 8.7

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

* CVE-2026-32777 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

* CVE-2026-32777 ( NVD ): 4.0 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

* CVE-2026-32777 ( NVD ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2026:1352-1
Release Date: 2026-04-15T13:36:54Z
Rating: important

Topics%20covered

Topics Covered

security advisory denial of service SuSE important expat NULL pointer dereference

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