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osvGoogleOSV:PYSEC-2021-141
HistoryMar 17, 2021 - 1:15 p.m.

PYSEC-2021-141

2021-03-1713:15:00
Google
osv.dev
12

0.01 Low

EPSS

Percentile

83.4%

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.