CVE-2021-44227 is a vulnerability tracked by ThreatCluster, appearing in 1 threat cluster built from 1 intelligence report mention.
CVE-2021-44227 is a vulnerability tracked across 1 threat cluster and 1 intelligence report mention on ThreatCluster. First observed March 2, 2026; most recent activity March 2, 2026.
A security vulnerability has been identified in Mailman, affecting Ubuntu 20.04 LTS and 16.04 LTS. The flaw allows a remote list member or moderator to bypass CSRF token protections, enabling them to craft admin…
CVE-2021-44227 is a vulnerability tracked by ThreatCluster, appearing in 1 threat cluster built from 1 intelligence report mention.
The most recent intelligence report mentioning CVE-2021-44227 on ThreatCluster is dated March 2, 2026.
Across ThreatCluster reporting, CVE-2021-44227 most frequently co-occurs with Zero-day Exploit, Ubuntu, Mailman.
The most significant recent cluster is “CSRF Bypass Vulnerability in Mailman Affects Ubuntu 20.04 and 16.04” (2 articles · Updated March 2, 2026). CVE-2021-44227 appears across 1 threat cluster in total, listed above with sources.
CVE-2021-44227 appears in 1 intelligence report mention across 1 deduplicated threat cluster, aggregated from 17,000+ monitored sources.