What’s Vulnerable › Vulnerabilities
CVE-2026-77587
- Severity: high (CVSS 7.5 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.4% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-08-20 · updated 2026-10-18
- Weakness: CWE-911
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.
Affected products
- torproject Tor: before 0.4.9.11 — fixed in 0.4.9.11
How to fix
Upgrade to a fixed version: torproject Tor 0.4.9.11. Check the vendor advisory for mitigations.
References
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