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.
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Mon, 21 Sep 2026 07:30:00 +0000

Type Values Removed Values Added
Title Use‑After‑Free in Tor 0.4.9.11 Leading to Crash

Wed, 16 Sep 2026 14:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-416

Tue, 25 Aug 2026 20:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Fri, 21 Aug 2026 01:45:00 +0000

Type Values Removed Values Added
Title Use‑After‑Free in Tor 0.4.9.11 Leading to Crash

Thu, 20 Aug 2026 21:00:00 +0000

Type Values Removed Values Added
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.
First Time appeared Torproject
Torproject tor
Weaknesses CWE-911
CPEs cpe:2.3:a:torproject:tor:*:*:*:*:*:*:*:*
Vendors & Products Torproject
Torproject tor
References
Metrics cvssV3_1

{'score': 5.9, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2026-08-25T19:09:06.542Z

Reserved: 2026-08-20T20:47:39.624Z

Link: CVE-2026-77587

cve-icon Vulnrichment

Updated: 2026-08-25T19:08:48.866Z

cve-icon NVD

Status : Analyzed

Published: 2026-08-20T21:17:10.957

Modified: 2026-09-16T14:09:19.390

Link: CVE-2026-77587

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-21T07:15:07Z

Weaknesses