VDB

DEBIAN-CVE-2021-20270

DEBIAN-CVE-2021-20270 PUBLISHED CVSS 7.5 HIGH

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.

Risk Scores

CVSS 3.1
7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected Products

VendorProductVersions
Debian:14pygments0, 0, 0
Debian:14mediawiki0, 0, 0
Debian:12pygments0, 0, 0
Debian:13mediawiki0, 0, 0
Debian:12mediawiki0, 0, 0
Debian:11pygments0, 0, 0
Debian:13pygments0, 0, 0
Debian:11mediawiki0, 0, 0

Timeline

  • Mar 23, 2021 CVE Published
  • Apr 28, 2026 CVE Updated
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