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CVE-2026-4539

LOW

3.3

Description

A security flaw has been discovered in pygments up to 2.19.2. The impacted element is the function AdlLexer of the file pygments/lexers/archetype.py. The manipulation results in inefficient regular expression complexity. The attack is only possible with local access. The exploit has been released to the public and may be used for attacks. The project was informed of the problem early through an issue report but has not responded yet.

CVE Details

CVSS v3.1 Score3.3

SeverityLOW

CVSS VectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

Attack VectorLOCAL

ComplexityLOW

Privileges RequiredLOW

User InteractionNONE

Published3/22/2026

Last Modified3/23/2026

Sourcenvd

Honeypot Sightings0

Weaknesses (CWE)

CWE-400CWE-1333

References

https://github.com/pygments/pygments/(cna@vuldb.com)

https://github.com/pygments/pygments/issues/3058(cna@vuldb.com)

https://vuldb.com/?ctiid.352327(cna@vuldb.com)

https://vuldb.com/?id.352327(cna@vuldb.com)

https://vuldb.com/?submit.774685(cna@vuldb.com)

IOC Correlations

No correlations recorded

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