Kurz gesagt
- CVE-2026-4539 ist eine Schwachstelle (NIEDRIG (CVSS 3.3)) in pygments.
- Wahrscheinlichkeit einer Ausnutzung in den nächsten 30 Tagen (EPSS): 0.16%, höher als bei 5.0% aller Schwachstellen.
- Abhilfe: auf 2.20.0 oder neuer aktualisieren.
| Package | Affected versions | Patched versions |
|---|
| pygments PyPI | < 2.20.0
| 2.20.0
|
Description
A security flaw has been discovered in pygments before 2.20.0. 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.
NVD 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.
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