Medium severity5.3NVD Advisory· Published Aug 20, 2026
CVE-2026-77639
CVE-2026-77639
Description
Tor before 0.4.9.9 was prone to a compression bomb bypass where an attacker could concatenate many gzip or zlib sub-streams, each just under the per-stream detection threshold, to avoid the compression bomb check entirely. This is TROVE-2026-022.
Affected products
1- Range: <0.4.9.9
Patches
Vulnerability mechanics
News mentions
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