Path Traversal in Vanna-Ai Vanna
CVE-2026-65702
Vanna through 2.0.2 contains a path traversal vulnerability in the FileSystemConversationStore persistence integration that allows unauthenticated remote attackers to write attacker-controlled JSON files to arbitrary filesystem locations and read conversation metadata from outside the intended store base directory. Attackers can supply path traversal sequences in the conversation_id parameter submitted to the unauthenticated chat API endpoints to escape the base directory during both write and read operations, enabling arbitrary file write with attacker-controlled content and unauthorized file read on the server filesystem.
Vulnerability class: Path Traversal (Directory Traversal)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.6 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:L.
EPSS exploit prediction
EPSS: 0.006 (47.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 47th percentile — 47.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000
Affected products
- Vanna-Ai Vanna — versions 0
Weakness classification (CWE)
References
- github.com/geo-chen/oss/blob/main/vanna.md (technical-description, exploit)
- www.vulncheck.com/advisories/vanna-path-traversal-via-filesystemconversationsto… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-65702?
- CVE-2026-65702 is a high-severity vulnerability in Vanna-Ai Vanna, classified under Path Traversal. CVSS score: 8.6/10. Published 2026-07-23.
- How severe is CVE-2026-65702?
- High severity. CVSS v3 base score is 8.6 out of 10.