External Control of File Name or Path Affecting sillytavern package, versions <1.17.0
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published5 Apr 2026
- disclosed1 Apr 2026
- creditmaru1009
Introduced: 1 Apr 2026
CVE-2026-34522 (opens in a new tab)How to fix?
Upgrade sillytavern to version 1.17.0 or higher.
Overview
sillytavern is a LLM Frontend for Power Users
Affected versions of this package are vulnerable to External Control of File Name or Path via the /api/chats/import endpoint when unsanitized input in the character_name parameter is used to construct file paths. An attacker can write arbitrary files outside the intended directory by supplying crafted traversal sequences.