Pygments has Regular Expression Denial of Service (ReDoS) due to Inefficient Regex for GUID Matching
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.
beschreibt (1)
Zugehörige CVEs.
| ID | Schweregrad | ausnutzbar | ||
|---|---|---|---|---|
| CVE-2026-4539US | — | — | ||
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 in… | ||||
Referenzen
Externe Belege — Patches, Meldungen, Analysen.
- https://github.com/pygments/pygmentsPACKAGE
- https://github.com/pygments/pygments/commit/24b8aa76c6cd6d70f39c6dd605cce319c98e2cccWEB
- https://github.com/pygments/pygments/issues/3058WEB
- https://github.com/pygments/pygments/pull/3064WEB
- https://github.com/pygments/pygments/releases/tag/2.20.0WEB
- https://nvd.nist.gov/vuln/detail/CVE-2026-4539ADVISORY
- https://vuldb.com/?ctiid.352327WEB
- https://vuldb.com/?id.352327WEB
Advisories wie diese benennen die exponierten Produkte, die Angreifer auf Ihrer Angriffsfläche ins Visier nehmen. Sehen Sie mit einem kostenlosen Passiv-Scan, was exponiert ist.
Kostenloser Scan