PT-2026-38321 · Tor · Tor

Brian Carpenter + 1 · Published 2026-05-07 · Updated 2026-05-08 · CVE-2026-44597

Positive Technologies (AI Summary)

CVSS v3.1

9.1

Critical

Base vector

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

Name of the Vulnerable Software and Affected Versions Tor versions prior to 0.4.9.7

Description An out-of-bounds read occurs during cell payload processing when an END, a TRUNCATE, or a TRUNCATED cell lacks a reason in its payload.

Recommendations Update to version 0.4.9.7 or later.

Fix

Weakness Enumeration

CWE-684

Related Identifiers

CVE-2026-44597

OPENSUSE-SU-2026:10735-1

Affected Products

Tor

References · 24

• https://osv.dev/vulnerability/DEBIAN-CVE-2026-44597 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2026-44597 · Security Note
• https://gitlab.torproject.org/tpo/core/tor/-/commit/8f98054b1982d00a14639864d03e9afd90b87481 · Patch
• https://security-tracker.debian.org/tracker/CVE-2026-44597 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2026-44597 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-44597 · Security Note
• https://ubuntu.com/security/CVE-2026-44597 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2026:10735-1 · Vendor Advisory
• https://twitter.com/VulmonFeeds/status/2052225522734616664 · Twitter Post
• https://suse.com/security/cve/CVE-2026-44603 · Note
• https://twitter.com/CVEarity/status/2052337595376628143 · Twitter Post
• https://twitter.com/CVEnew/status/2052400860827934995 · Twitter Post
• https://suse.com/security/cve/CVE-2026-44602 · Note
• https://suse.com/security/cve/CVE-2026-44600 · Note
• https://suse.com/security/cve/CVE-2026-44599 · Note