CVE-2026-77587
CVSS Score
5.9
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-911 |
| Vendor | torproject |
| Product | tor |
| Published | Aug 20, 2026 |
Stay Ahead of the Next One
Get instant alerts for torproject tor
Be the first to know when new medium vulnerabilities affecting torproject tor are published — delivered to Slack, Telegram or Discord.
Get Free Alerts →
Free · No credit card · 60 sec setup
CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Affected Versions
torproject / Tor
0.4.8.1-alpha < 0.4.9.11