What is CVE-2026-44601?

CVE-2026-44601 is a low-severity vulnerability in Torproject Tor, classified under CWE-837. CVSS score: 3.7/10. Published 2026-05-07.

How severe is CVE-2026-44601?

Low severity. CVSS v3 base score is 3.7 out of 10.

Vulnerability in Torproject Tor

CVE-2026-44601

Tor before 0.4.9.7, when circuit queue memory pressure exists, can experience a client crash because of a double close of a circuit, aka TROVE-2026-009.

EPSS: 0.001 (17.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 3.7 (Low). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L.

Affected products

Torproject Tor — versions 0

Weakness classification (CWE)

CWE-837

References

cve@mitre.org (Release Notes)
cve@mitre.org (Patch)
cve@mitre.org (Not Applicable)
cve@mitre.org (Mailing List, Release Notes)

Frequently asked questions

What is CVE-2026-44601?: CVE-2026-44601 is a low-severity vulnerability in Torproject Tor, classified under CWE-837. CVSS score: 3.7/10. Published 2026-05-07.
How severe is CVE-2026-44601?: Low severity. CVSS v3 base score is 3.7 out of 10.