CVE-2026-44601 Details
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.
A bug in Tor versions prior to 0.4.9.7 can cause a client crash under certain memory pressure conditions. This issue arises from a double closing of a circuit, which can occur when there is a backlog of circuits waiting to be processed. The vulnerability has been identified as TROVE-2026-009.
Users are advised to upgrade to Tor version 0.4.9.7, which addresses this vulnerability.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed May 7, 2026References to Advisories, Solutions, and Tools
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Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-837 | Improper Enforcement of a Single, Unique Action | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| torproject tor | < 0.4.9.7 |
CPE
Remediation
| |
Change History
4 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| May 8, 2026 | Initial Analysis | [email protected] |
| May 7, 2026 | New CVE Received | [email protected] |