vanna-ai vanna up to 2.0.2 conversation_id path traversal

Summaryinfo

A vulnerability has been found in vanna-ai vanna up to 2.0.2 and classified as critical. The impacted element is an unknown function of the component FileSystemConversationStore persistence integration. The manipulation of the argument conversation_id leads to path traversal. This vulnerability only affects products that are no longer supported by the maintainer. This vulnerability is listed as CVE-2026-65702. The attack may be initiated remotely. There is no available exploit.

Detailsinfo

A vulnerability, which was classified as critical, has been found in vanna-ai vanna up to 2.0.2. This issue affects an unknown part of the component FileSystemConversationStore persistence integration. The manipulation of the argument conversation_id with an unknown input leads to a path traversal vulnerability. Using CWE to declare the problem leads to CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

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.

It is possible to read the advisory at github.com. The identification of this vulnerability is CVE-2026-65702 since 07/22/2026. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 07/23/2026). The attack technique deployed by this issue is T1006 according to MITRE ATT&CK.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Type

• Artificial Intelligence Software

Vendor

• vanna-ai

Name

• vanna

Version

• 2.0.0
• 2.0.1
• 2.0.2

Support

• end of life

CPE 2.3info

• 🔒
• 🔒
• 🔒

CPE 2.2info

• 🔒
• 🔒
• 🔒

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