CVE-2026-77587

HighCVSS 7.5/10Last modified Oct 18, 2026

Description

Tor before 0.4.9.11 is prone to a use-after-free (and potential double free) of a conflux object when a recovery leg revives a conflux set whose last linked leg has already been closed. A malicious exit node could use this to crash a client. This is TROVE-2026-026.

Metrics

CVSS 3.1 7.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-911 CWE-416

Affected software

Vendor	Product	Versions
torproject	Tor	>= 0.4.8.1-alpha, < 0.4.9.11

References

https://gitlab.torproject.org/tpo/core/tor/-/raw/tor-0.4.9.11/ChangeLogPermissions Required, Release Notes, Vendor Advisory

Timeline

Published: Aug 20, 2026
Last modified: Oct 18, 2026
NVD status: Analyzed

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