CVE-2012-2921: Universal Feed Parser (aka feedparser or python-feedparser) before 5.1.2 allows remote attackers to cause a...

Security readout for executives and security teams

This issue affects Universal Feed Parser before 5.1.2. A malicious feed document can trigger excessive memory use, causing a denial of service in software that parses untrusted feeds. The business impact is availability risk, not data theft, based on the provided sources. Exposure is most likely where Python applications use feedparser before 5.1.2 to process remote or user-supplied RSS, Atom, or XML feed content. The bundle does not identify specific downstream products beyond Universal Feed Parser/python-feedparser. Treat this as a targeted availability risk. Prioritize internet-facing or business-critical services that parse external feeds, especially legacy Python systems. Urgency is lower than code execution flaws, but remediation is straightforward if an upgrade path exists. Mitigation focus: Upgrade Universal Feed Parser/python-feedparser to version 5.1.2 or later.; Apply distribution vendor updates where packaged versions are managed by the operating system.; Identify services that parse untrusted external feeds and prioritize them first..

Prepared

Jun 24, 2026, 12:34 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.