Tor before 0.4.9.7 can attempt or accept BEGIN_DIR via conflux legs, aka TROVE-2026-008.
Priority LOW 24CWE-669Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · Low · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA.
Summary
Tor before 0.4.9.7 can attempt or accept BEGIN_DIR via conflux legs, aka TROVE-2026-008.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00287 21st percentileScored 2026-11-07
Fix Fixed Tor (torproject): 0.4.9.7
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| torproject | Tor | before 0.4.9.7 | 0.4.9.7 | Patch available | CNA |
- Tor Vendortorproject Affected before 0.4.9.7 Fixed in 0.4.9.7 Patch available CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:torproject:tor:*:*:*:*:*:*:*:* | before 0.4.9.7 | Vulnerable | torproject |
- cpe:2.3:a:torproject:tor:*:*:*:*:*:*:*:* Versions before 0.4.9.7 Vulnerable ·torproject
Remediation
- Fix · CNA Tor (torproject) Fixed in 0.4.9.7
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
torproject Tor 0.4.9.7
6 records Highest priority Priority MEDIUM 1 MEDIUM, 5 LOW
Other records, highest priority first
- TI-2026-32508 Tor before 0.4.9.7 has an out-of-bounds read when an END, a TRUNCATE, or a TRUNCATED cell…Priority MEDIUM 40
- TI-2026-32514 Tor before 0.4.9.7 has an out-of-bounds read by one byte via a malformed BEGIN cell, aka TROVE-2026-007.Priority LOW 39
- TI-2026-32513 Tor before 0.4.9.7 has a NULL pointer dereference when a CERT cell is received out of order, aka TROVE-2026-006.Priority LOW 33
Vendor assessments
Timeline
- 2026-10-02 Threatist record created from CVE-2026-44599
- 2026-10-03 Alias added: GHSA-rprm-6mg6-r8fm
References
More torproject Tor vulnerabilities
- TI-2016-07433 Use after free in Mozilla Firefox KEVCVSS 3.1HIGH 7.5
- TI-2023-09419 The SafeSocks option in Tor before 0.4.7.13 has a logic error in which the unsafe SOCKS4… CVSS 3.1MEDIUM 6.5
- TI-2018-00448 Use after free in Tor CVSS 3.0HIGH 7.5
- TI-2026-54108 Race condition in torproject Tor CVSS 3.1CRITICAL 9.0
- TI-2026-54112 Out-of-bounds write in torproject Tor CVSS 3.1CRITICAL 9.3
- TI-2026-32508 Tor before 0.4.9.7 has an out-of-bounds read when an END, a TRUNCATE, or a TRUNCATED cell… CVSS 3.1CRITICAL 9.1
Sources
- CVE-2026-44599 · CVE Program
- CVE-2026-44599 · NVD
- FIRST EPSS
- GHSA-rprm-6mg6-r8fm · GitHub Advisory Database · CC BY 4.0
- CVE-2026-44599 · Red Hat security data · CC BY 4.0
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