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CVE-2026-34524

Sillytavern path traversal

8.3 HIGHPublic exploitEPSS 0.63%
  1. Published2 Apr 2026

Description

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 chat endpoints allows an authenticated attacker to read and delete arbitrary files under their user data root (for example secrets.json and settings.json) by supplying avatar_url="..". This issue has been patched in version 1.17.0.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredLow
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityLow
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L

Affected products

Sillytavern< 1.17.0

Remediation

Fixed in
Sillytavern≥ 1.17.0

References

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Frequently asked

Is CVE-2026-34524 being actively exploited?

CVE-2026-34524 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 0.63%.

How severe is CVE-2026-34524?

CVE-2026-34524 has a CVSS 3.1 base score of 8.3, rated high. EPSS estimates a 0.63% probability of exploitation.

Which products are affected by CVE-2026-34524?

Affected products include Sillytavern.

How do I fix CVE-2026-34524?

Upgrade affected software to a fixed version, for example Sillytavern 1.17.0 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2026-34524 against the real software inventory on every managed device, as each hourly inventory arrives. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.