CVE-2026-77642

Torproject · Published August 20, 2026

9.3

CVSS v3.1

CRITICAL

Patch availableGet patch

Description

tor before 0.4.9.9 was prone to an out-of-bounds write when parsing a consensus or detached signature with unexpected signature digest type. Impact is minor for most Tor roles, but potentially major for directory authorities. This is TROVE-2026-019.

Affected Products

TOR < 0.4.9.9

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:H