CVE-2026-44597: CWE-684 Incorrect Provision of Specified Functionality in torproject Tor
Tor before 0.4.9.7 has an out-of-bounds read when an END, a TRUNCATE, or a TRUNCATED cell lacks a reason in its payload, aka TROVE-2026-011.
AI Analysis
Technical Summary
Tor versions prior to 0.4.9.7 contain an out-of-bounds read vulnerability triggered when an END, TRUNCATE, or TRUNCATED cell lacks a reason field in its payload. This flaw is categorized under CWE-684 (Incorrect Provision of Specified Functionality). The vulnerability has a CVSS v3.1 base score of 3.7, indicating low severity, with network attack vector, high attack complexity, no privileges required, no user interaction, and impacts only availability to a low degree. There is no official remediation or patch information available at this time.
Potential Impact
The vulnerability may cause a low-level availability impact due to an out-of-bounds read condition. It does not affect confidentiality or integrity. No known exploits are currently reported in the wild.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, users should monitor for updates from the Tor Project. No specific mitigation steps are provided by the vendor at this time.
CVE-2026-44597: CWE-684 Incorrect Provision of Specified Functionality in torproject Tor
Description
Tor before 0.4.9.7 has an out-of-bounds read when an END, a TRUNCATE, or a TRUNCATED cell lacks a reason in its payload, aka TROVE-2026-011.
CVSS v3.1
Score 3.7low
Affected software
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
Tor versions prior to 0.4.9.7 contain an out-of-bounds read vulnerability triggered when an END, TRUNCATE, or TRUNCATED cell lacks a reason field in its payload. This flaw is categorized under CWE-684 (Incorrect Provision of Specified Functionality). The vulnerability has a CVSS v3.1 base score of 3.7, indicating low severity, with network attack vector, high attack complexity, no privileges required, no user interaction, and impacts only availability to a low degree. There is no official remediation or patch information available at this time.
Potential Impact
The vulnerability may cause a low-level availability impact due to an out-of-bounds read condition. It does not affect confidentiality or integrity. No known exploits are currently reported in the wild.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, users should monitor for updates from the Tor Project. No specific mitigation steps are provided by the vendor at this time.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- mitre
- Date Reserved
- 2026-05-07T00:56:46.891Z
- Cvss Version
- null
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 69fbe963cbff5d8610e6c11c
Added to database: 05/07/2026, 01:22:43 UTC
Last enriched: 05/14/2026, 03:50:50 UTC
Last updated: 07/31/2026, 19:22:59 UTC
Views: 140
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