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Vulnerabilities CVE-2026-65702

CVE-2026-65702

High
Open
TLP:CLEAR

Vanna 2.0.2 Path Traversal via FileSystemConversationStore

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Description

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.

Details

CVSS Score
8.8
EPSS Score
0.49%

39.8th percentile

CVSS Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:H/VA:L/SC:N/SI:N/SA:N
Confidence
90%
Published
Jul 23, 2026
Last Modified
Jul 23, 2026
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