CVE-2012-2921: Mark Pilgrim Feedparser

Medium severity, CVSS 5.0. EPSS: 2.7% chance of exploitation in the next 30 days.

Universal Feed Parser (aka feedparser or python-feedparser) before 5.1.2 allows remote attackers to cause a denial of service (memory consumption) via a crafted XML ENTITY declaration in a non-ASCII encoded document.

Affected products

• Mark Pilgrim Feedparser: up to and including 5.1.1; version 3.0 only; version 3.0.1 only; version 3.1 only; version 3.2 only; version 3.3 only; …

Published 2012-05-21. Last modified 2026-06-16.