SillyTavern: Path traversal in `/api/chats/import` allows arbitrary file write outside intended chat directory

published 2026-04-01 7 mo ago modified 2026-07-24 3 mo ago also GHSA-xvww-xhx6-22pf , EUVD-2026-18438

cvss: 8.1; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.4%; EPSS 0.4% chance of exploitation in 30 days, percentile 37%
public exploits: 0; none known

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.

Patch / fix

fixed in 2 links 1

npm sillytavern 1.17.0
sillytavern sillytavern 1.17.0

github.com/SillyTavern/SillyTavern/releases/tag/1.17.0 release

CISA SSVC

Exploitation: Proof of concept is public
Automatable: no
Technical impact: partial
Assessed: 7 mo ago (2026-04-02)

Exploit prediction

0.43% chance of exploitation in the next 30 days, higher than 37% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

github.com https://github.com/SillyTavern/SillyTavern/security/advisories/GHSA-xvww-xhx6-22pf referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
CNA	3.1	8.1	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
GitHub	3.1	8.1	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H

Affected packages

ecosystem	package	affected	fixed in
npm	sillytavern	<1.17.0	1.17.0

Affected products

SillyTavern SillyTavern

Classification

Weakness

CWE-22 Improper Limitation of a Pathname to a Restricted Directory
CWE-73 External Control of File Name or Path

References

github.com /SillyTavern/SillyTavern/security/advisories/GHSA-xvww-xhx6-22pf
web, exploit, vendor-advisory
github.com /SillyTavern/SillyTavern/releases/tag/1.17.0
web, release-notes
nvd.nist.gov /vuln/detail/CVE-2026-34522
advisory
github.com /SillyTavern/SillyTavern
package

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary