5.3

CVE-2026-44599: torproject tor

CVSS: 5.3v3.1MediumAnalyzed
AliasesUBUNTU-CVE-2026-44599DEBIAN-CVE-2026-44599
Published 07-05-2026Last modified 07-05-2026
Open JSON

Vulnerability summary

CVE-2026-44599 is a medium (CVSS 5.3) vulnerability in torproject tor. EPSS estimates a 0.40% chance of exploitation in the next 30 days, higher than 32.4% of scored vulnerabilities.

Overall risk
21/100
0100
Low · default modelHow is this calculated?
CVSS score
5.3/10
010
Medium · v3.1 (NVD)
EPSS score
0.40%
0%100%
Low · +0.11 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 2 · Related 1
MGASA-2026-0187OPENSUSE-SU-2026:10735-1

Timeline

  1. 07-05-2026
    PublishedVulnerability first disclosed.
  2. 07-05-2026
    Last modifiedVulnerability information updated.

Description

Tor before 0.4.9.7 can attempt or accept BEGIN_DIR via conflux legs, aka TROVE-2026-008.

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.40%

Chance of exploitation in the next 30 days

Percentile

32%

Versus all other CVEs

30-day change

+0.11 pp

From 0.29% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.40%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Debian1 product
  • tor< 0.4.9.8-0+deb12u1 | < 0.4.9.8-0+deb13u1 | < 0.4.9.8-1
Torproject1 product
Ubuntu1 product
  • torAll versions (No fix recorded)

3 vendors · 3 products

References

7 links