CVE-2007-0451: Apache Spamassassin

Medium severity, CVSS 4.3. EPSS: 6.9% chance of exploitation in the next 30 days.

Apache SpamAssassin before 3.1.8 allows remote attackers to cause a denial of service via long URLs in malformed HTML, which triggers "massive memory usage."

Affected products

• Apache Spamassassin: up to and including 3.1.7; version 3.0.1 only; version 3.0.2 only; version 3.0.3 only; version 3.0.4 only; version 3.1.0 only; …

Published 2007-02-16. Last modified 2026-06-16.