CVE detail
CVE-2026-4539
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.
Buzz score
Why this CVE is surfacing
This all-time snapshot uses the same composite formula as Trending across a 30-year evidence window, rather than a current rolling window.
Buzz score components · mention 17.9 · diversity 6.5 · KEV 0.0 · OTX 0.0 · PoC 0.0
Why it matters now
Mention timeline
- Total mentions
- 0
- within the 30d window
- Peak daily
- 0
- highest bucket
Evidence
Source links by recency
5 source links · newest first
- https://vuldb.com/?submit.774685vuldb.com
No excerpt available.
Exploitvuldb.comMar 22, 2026, 6:16 AM - https://vuldb.com/?id.352327vuldb.com
No excerpt available.
Exploitvuldb.comMar 22, 2026, 6:16 AM - https://vuldb.com/?ctiid.352327vuldb.com
No excerpt available.
Exploitvuldb.comMar 22, 2026, 6:16 AM No excerpt available.
Exploitgithub.comMar 22, 2026, 6:16 AM- https://github.com/pygments/pygments/github.com
No excerpt available.
Exploitgithub.comMar 22, 2026, 6:16 AM
Exploit code
Public exploit repository references
Public PoC repositories are third-party, potentially unsafe artifacts. Treat their code as untrusted and use it only on authorized systems in an isolated, least-privilege environment. cvebuzz does not execute the code or verify that an exploit works.
0 repository references · best confidence N/A · max 0 stars
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