CVE•Published 2026-08-20•Modified 2026-09-16•1 article on news•5 live references•NVD data
CVE-2026-77638Torproject · Tor
Vulnerability data via NVD (ingested)
CVSS v3.1
8.9
HIGH
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:L
EPSS percentile
7
Exploit Prediction Scoring System · top 93% of all CVEs
Weaknesses (CWE)
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.
Timeline
Published 2026-08-20
Modified 2026-09-16
External references
Search for exposed instances
Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).
Shodan · vuln tag0 hosts
vuln:CVE-2026-77638Hosts Shodan has explicitly fingerprinted as vulnerable.
Shodan · product
product:"Torproject Tor"All exposed Torproject Tor instances — cross-reference with the CVE's affected-version range.
Shodan · banner/body mention
http.html:"Tor"HTTP body or banner mentions "Tor" — catches deploys Shodan didn't identify as a product.
More intel sources (5)
Shodan report
vuln:CVE-2026-77638Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2026-77638Censys host search filtered to this CVE id.
grep.app
CVE-2026-77638Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2026-77638GitHub code search for direct mentions.
Google dork
"CVE-2026-77638" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.
Known PoCs on GitHub
No public proof-of-concept repositories found for CVE-2026-77638 on GitHub.