CVE-2021-20270

CVE-2021-20270 describes an infinite loop in Pygments’ SMLLexer, affecting Pygments 1.5–2.7.3, which can cause DoS during syntax highlighting of StandardML sources (e.g., input containing only the keyword “exception”). Connected advisories confirm affected distributions (e.g., Debian, AlmaLinux, ...

python-pygments: Infinite loop in SML lexer may lead to DoS

An infinite loop in SMLLexer in Pygments versions 1.5 to 2.7.3 may lead to denial of service when performing syntax highlighting of a Standard ML SML source file, as demonstrated by input that only contains the "exception" keyword...

UBUNTU-CVE-2021-20270

An infinite loop in SMLLexer in Pygments versions 1.5 to 2.7.3 may lead to denial of service when performing syntax highlighting of a Standard ML SML source file, as demonstrated by input that only contains the "exception" keyword...

CVE-2021-20270

An infinite loop in SMLLexer in Pygments versions 1.5 to 2.7.3 may lead to denial of service when performing syntax highlighting of a Standard ML SML source file, as demonstrated by input that only contains the "exception" keyword...

PT-2020-6145 · Pygments +10 · Pygments +10

Name of the Vulnerable Software and Affected Versions: Pygments versions 1.5 to 2.7.3 Description: The issue is related to an infinite loop in the SMLLexer function of the Pygments library. This can lead to a denial of service when performing syntax highlighting of a Standard ML SML source file...