vulnerability
Ubuntu: (Multiple Advisories) (CVE-2021-27291): Pygments vulnerability
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 5 | (AV:N/AC:L/Au:N/C:N/I:N/A:P) | Mar 17, 2021 | Mar 31, 2021 | Aug 18, 2025 |
Severity
5
CVSS
(AV:N/AC:L/Au:N/C:N/I:N/A:P)
Published
Mar 17, 2021
Added
Mar 31, 2021
Modified
Aug 18, 2025
Description
In pygments 1.1+, fixed in 2.7.4, the lexers used to parse programming languages rely heavily on regular expressions. Some of the regular expressions have exponential or cubic worst-case complexity and are vulnerable to ReDoS. By crafting malicious input, an attacker can cause a denial of service.
Solutions
ubuntu-pro-upgrade-python-pygmentsubuntu-pro-upgrade-python3-pygments
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