Bug 2520788 (CVE-2026-77587) - CVE-2026-77587 Tor: Tor: Denial of Service via use-after-free vulnerability
Summary: CVE-2026-77587 Tor: Tor: Denial of Service via use-after-free vulnerability
Keywords:
Status: NEW
Alias: CVE-2026-77587
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 2521979 2521980
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-08-20 21:03 UTC by OSIDB Bzimport
Modified: 2026-08-24 14:44 UTC (History)
0 users

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:

Attachments (Terms of Use)

Description OSIDB Bzimport 2026-08-20 21:03:58 UTC 
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.
Note You need to log in before you can comment on or make changes to this bug.