What is GHSA-9mf5-x83c-fg2x?

GHSA-9mf5-x83c-fg2x is a security advisory published by GitHub Security Advisories with Medium severity. Tor before 0.4.9.11 is prone to a use-after-free (and potential double free) of a conflux object...

Which CVE IDs does GHSA-9mf5-x83c-fg2x cover?

GHSA-9mf5-x83c-fg2x covers the following CVE IDs: CVE-2026-77587. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-9mf5-x83c-fg2x?

GHSA-9mf5-x83c-fg2x has a CVSS v3 base score of 5.9, published by GitHub Security Advisories.

GHSA-9mf5-x83c-fg2xMediumCVSS 5.9

Tor before 0.4.9.11 is prone to a use-after-free (and potential double free) of a conflux object...

Vendor

GitHub Security Advisories

Published

August 20, 2026

Last Modified

August 20, 2026

🔗 CVE IDs covered (1)

CVE-2026-77587 →

📋 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.

🔗 References (3)

https://nvd.nist.gov/vuln/detail/CVE-2026-77587
https://gitlab.torproject.org/tpo/core/tor/-/raw/tor-0.4.9.11/ChangeLog
https://github.com/advisories/GHSA-9mf5-x83c-fg2x