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CVE-2026-4539VulnerabilityPublished

SUSE · Security update for python-Pygments

Affects SUSESource GCVE Database

0
Authoritative record:CVE-2026-4539· Medium 4.8

Public exploit available · CVSS 4.8 Medium.

Data as of 27 Oct 2026, 00:26 UTC

CVSS 4.0 base score
4.8Medium
How severe the flaw is on the 0–10 CVSS scale.
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

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 22 Mar 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: evidence found.

    CVSS exploit maturity: proof of concept public

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), CVSS vector, the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

Affected software

ProductAffectedFixed in
pygmentsAffected
  • =2.19.0
  • =2.19.1
  • =2.19.2
Fixed in–
PyPIpygmentspkg:pypi/pygmentsOther threatsAffected
  • =2.19.0
  • =2.19.1
  • =2.19.2
Fixed in–

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

A security update has been released by the SUSE Product Security Team to fix this issue. Users should apply the update to remediate the vulnerability. No additional mitigation steps are indicated.

Description

A security update for python-Pygments addresses CVE-2026-4539, which involves an inefficient regular expression used for GUID and ID pattern matching. This inefficiency can lead to a Regular Expression Denial of Service (ReDoS) vulnerability in the archetype lexer component. The severity of this issue is rated as low.

References

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