Description
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
References4
- gitlab.torproject.org/tpo/core/tor/-/commit/d4e3f6a440b58c2be66… Patch
- forum.torproject.org/c/news/tor-release-announcement/28 Release Notes
- gitlab.torproject.org/tpo/core/tor/-/work_items/41237 Not Applicable
- www.openwall.com/lists/oss-security/2026/05/06/8 Mailing ListRelease Notes
Metrics
- CVSS 3.1
-
7.5
HIGH
Score source: NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - EPSS — exploit probability
- 0% percentile: 27 · as of 13 November 2026
- CWE
- CWE-837
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