CVE-2026-4539 (GCVE-0-2026-4539)
Vulnerability from cvelistv5
Published
2026-03-22 05:35
Modified
2026-03-23 16:08
Severity ?
1.9 (Low) - 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
3.3 (Low) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RC:R
3.3 (Low) - CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RC:R
CWE
  • CWE-1333 - Inefficient Regular Expression Complexity
  • CWE-400 - Resource Consumption
Summary
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.
References
https://vuldb.com/?id.352327 vdb-entry, technical-description
https://vuldb.com/?ctiid.352327 signature, permissions-required
https://vuldb.com/?submit.774685 third-party-advisory
https://github.com/pygments/pygments/issues/3058 exploit, issue-tracking
https://github.com/pygments/pygments/ product
Impacted products
Vendor Product Version
n/a pygments Version: 2.19.0
Version: 2.19.1
Version: 2.19.2
Show details on NVD website

To clipboard 

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