CVEvulnerability

CVE-2026-77642

9.3 CRITICAL Published 2026-08-20 Modified 2026-10-18 Official page ↗
Status
Analyzed
Published
2026-08-20
Last modified
2026-10-18
Assigner
[email protected]
CVSS 3.1 ([email protected])
7.5 HIGH — CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:L/A:H
CVSS 3.1 ([email protected])
9.3 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:H
Weaknesses
CWE-787

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 configurations

• torproject tor (< 0.4.9.9)

Related

Weakness · CWE (1)

  • CWE-787 Out-of-bounds Write weakness

References