SillyTavern up to 1.16.x /api/chats/import character_name path traversal

Summaryinfo

A vulnerability labeled as critical has been found in SillyTavern up to 1.16.x. The impacted element is an unknown function of the file /api/chats/import. The manipulation of the argument character_name results in path traversal. This vulnerability is identified as CVE-2026-34522. The attack is only possible with local access. There is not any exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in SillyTavern up to 1.16.x. It has been classified as critical. Affected is an unknown part of the file /api/chats/import. The manipulation of the argument character_name with an unknown input leads to a path traversal vulnerability. CWE is classifying the issue as 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. This is going to have an impact on integrity, and availability. CVE summarizes:

SillyTavern is a locally installed user interface that allows users to interact with text generation large language models, image generation engines, and text-to-speech voice models. Prior to version 1.17.0, a path traversal vulnerability in /api/chats/import allows an authenticated attacker to write attacker-controlled files outside the intended chats directory by injecting traversal sequences into character_name. This issue has been patched in version 1.17.0.

The advisory is available at github.com. This vulnerability is traded as CVE-2026-34522 since 03/30/2026. The exploitability is told to be easy. Local access is required to approach this attack. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1006 by the MITRE ATT&CK project.

Upgrading to version 1.17.0 eliminates this vulnerability.

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Productinfo

Name

• SillyTavern

Version

• 1.0
• 1.1
• 1.2
• 1.3
• 1.4
• 1.5
• 1.6
• 1.7
• 1.8
• 1.9
• 1.10
• 1.11
• 1.12
• 1.13
• 1.14
• 1.15
• 1.16

Website

• Product: https://github.com/SillyTavern/SillyTavern/

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