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openSUSE python-Pygments Low CVE-2026-4539 ReDoS Issue SUSE-SU-2026-1666-1

suse
Calendar Grey May 1, 2026
Dist Suse Esm H88
Critical update for python-Pygments addressing CVE-2026-4539 with a low severity rating and details for openSUSE systems.
An update that solves one vulnerability can now be installed.

Summary

## This update for python-Pygments fixes the following issues: * CVE-2026-4539: inefficient regex for GUID and ID pattern matching can lead to archetype lexer ReDoS (bsc#1260796). ## 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: * Public Cloud Module 15-SP4 zypper in -t patch SUSE-SLE-Module-Public-Cloud-15-SP4-2026-1666=1 * Python 3 Module 15-SP7 zypper in -t patch SUSE-SLE-Module-Python3-15-SP7-2026-1666=1 * openSUSE Leap 15.4 zypper in -t patch SUSE-2026-1666=1 * openSUSE Leap 15.6 zypper in -t patch openSUSE-SLE-15.6-2026-1666=1 ## Package List: * Public Cloud Module 15-SP4 (noarch) * python311-Pygments-2.15.1-150400.7.10.1

Topics%20covered

Topics Covered

security advisory low OpenSUSE REDoS Python-Pygments cve-2026-4539

References

* bsc#1260796

Cross-

* CVE-2026-4539

CVSS scores:

* CVE-2026-4539 ( SUSE ): 3.3 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

* CVE-2026-4539 ( NVD ): 1.9

CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/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-2026-4539 ( NVD ): 3.3 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

Affected Products:

* openSUSE Leap 15.4

* openSUSE Leap 15.6

* Public Cloud Module 15-SP4

* Python 3 Module 15-SP7

* SUSE Linux Enterprise Desktop 15 SP7

* SUSE Linux Enterprise High Performance Computing 15 SP4

* SUSE Linux Enterprise Server 15 SP4

* SUSE Linux Enterprise Server 15 SP7

* SUSE Linux Enterprise Server for SAP Applications 15 SP4

Severity
low
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2026:1666-1
Release Date: 2026-04-30T17:22:22Z
Rating: low

Topics%20covered

Topics Covered

security advisory low OpenSUSE REDoS Python-Pygments cve-2026-4539

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