CVE-2026-44601: Torproject Tor

High severity, CVSS 7.5. EPSS: 0.6% chance of exploitation in the next 30 days.

Tor before 0.4.9.7, when circuit queue memory pressure exists, can experience a client crash because of a double close of a circuit, aka TROVE-2026-009.

Affected products

• Torproject Tor: before 0.4.9.7 (fixed in 0.4.9.7)

Published 2026-05-07. Last modified 2026-06-17.