CVE-2026-44601

tor: Tor before 0.4.9.7, when circuit queue memory pressure exists, can experience a client crash because of a double clos...

CVE-2026-44601 is fixed in tor on 1 platform, first by DEBIAN-CVE-2026-44601, released May 15, 2026. It is not reported as exploited. Patch Radar priority: High.

High
CVSS
7.5
high
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0034
27th percentile

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.

Where it's fixed

ProductFixed inFixReleased
Linux
tor · Debian 12.15 (bookworm) 0.4.9.8-0+deb12u1 DEBIAN-CVE-2026-44601 May 15, 2026
tor · Debian 13.5 (trixie) 0.4.9.8-0+deb13u1 DEBIAN-CVE-2026-44601 May 15, 2026
tor · Debian 14 0.4.9.8-1 DEBIAN-CVE-2026-44601 May 15, 2026

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