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SUSE libxml2 Important Buffer Overflow Denial of Service Vuln 2026-22596-1

suse
Calendar Grey July 15, 2026
Scroller Suse
Update for libxml2 addresses critical stack overflows and DoS issues in SUSE systems for improved security.
A security update for libxml2 addresses two vulnerabilities, including denial of service and stack-based buffer overflows, with recommended installation methods provided for affect...

Summary

## This update for libxml2 fixes the following issues * CVE-2026-6732: crafted XSD-validated document can cause a denial of service (bsc#1262719). * CVE-2026-11979: stack-based buffer overflows in the `xmlcatalog` utility when running in `--shell` mode (bsc#1269790). ## 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: * SUSE Linux Micro 6.2 zypper in -t patch SUSE-SL-Micro-6.2-1220=1 ## Package List: * SUSE Linux Micro 6.2 (aarch64 ppc64le s390x x86_64) * libxml2-tools-debuginfo-2.13.8-160000.5.1 * libxml2-2-debuginfo-2.13.8-160000.5.1 * libxml2-2-2.13.8-160000.5.1 * python313-libxml2-debuginfo-2.13.8-160000.5.1

Topics%20covered

Topics Covered

security advisory denial of service buffer overflow SuSE important libxml2

References

* bsc#1262719

* bsc#1269790

Cross-

* CVE-2026-11979

* CVE-2026-6732

CVSS scores:

* CVE-2026-11979 ( SUSE ): 7.1

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

* CVE-2026-11979 ( SUSE ): 7.0 CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

* CVE-2026-11979 ( NVD ): 1.8

CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:A/VC:N/VI:N/VA:L/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

* CVE-2026-11979 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

* CVE-2026-6732 ( SUSE ): 6.0

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

* CVE-2026-6732 ( SUSE ): 6.5 CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2026:22596-1
Release Date: 2026-07-13T07:49:58Z
Rating: important

Topics%20covered

Topics Covered

security advisory denial of service buffer overflow SuSE important libxml2

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