CVE-2021-39246
Medium
Description
Tor Browser through 10.5.6 and 11.x through 11.0a4 allows a correlation attack that can compromise the privacy of visits to v2 onion addresses. Exact timestamps of these onion-service visits are logged locally, and an attacker might be able to compare them to timestamp data collected by the destination server (or collected by a rogue site within the Tor network).
SeverityMedium
CVSS6.1
Exploit probability—
ProductTorproject Tor Browser
PublishedSep 24, 2021
First seenSep 24, 2021
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| torproject tor_browser | v ≤ 10.5.6, 11.0 | — |
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