CVE-2026-77638
Last modified
CVE-2026-77638 is a high-severity vulnerability rated 8.9/10 on the CVSS scale. Tor before 0.4.9.11 is prone to a race condition where in just the right circumstances a rendezvous point could man-in-the-middle (impersonate) the onion service that the client was trying to reach.. EPSS estimates a 0.17% chance of exploitation in the next 30 days.
Description
Tor before 0.4.9.11 is prone to a race condition where in just the right circumstances a rendezvous point could man-in-the-middle (impersonate) the onion service that the client was trying to reach.
Metrics
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:L
Weakness Enumeration
Affected Software
Source: CNA advisory (CVE.org). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| torproject | Tor | >= 0.3.5.3-alpha, < 0.4.9.11 |
References
Timeline
- Published
- Last Modified
- Status
- Received
Frequently Asked Questions
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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