CVE-2025-59159

CRITICALNVD 9.69.6—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.6 under NVD CVSS v3. EPSS exploit probability: 0.0%, top 99% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
Elevated
9.6
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 9.6Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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. In versions prior to 1.13.4, the web user interface for SillyTavern is susceptible to DNS rebinding, allowing attackers to perform actions like install malicious extensions, read chats, inject arbitrary HTML for phishing attacks, etc. The vulnerability has been patched in the version 1.13.4 by introducing a server configuration setting that enables a validation of host names in inbound HTTP requests according to the provided list of allowed hosts: hostWhitelist.enabled in config.yaml file or SILLYTAVERN_HOSTWHITELIST_ENABLED environment variable. While the setting is disabled by default to honor a wide variety of existing user configurations and maintain backwards compatibility, existing and new users are encouraged to review their server configurations and apply necessary changes to their setup, especially if hosting over the local network while not using SSL.

CVSS v3
9.6
EG Score
9.6(medium)
EG Risk
—
EPSS
14.6%
KEV
Not listed

Published

October 6, 2025

Last Modified

April 15, 2026

Advisory Details (5)

Auto-updated May 21, 2026
🔬 Proof of concept available. Patch available. Sources: github.
github Patch Available🟡 PoC Available

SillyTavern Web Interface Vulnerable DNS Rebinding · Advisory · SillyTavern/SillyTavern · GitHub

https://github.com/SillyTavern/SillyTavern/security/advisories/GHSA-7cxj-w27x-x78q
generic

Release 1.13.4 · SillyTavern/SillyTavern · GitHub

https://github.com/SillyTavern/SillyTavern/releases/tag/1.13.4
generic

Server: Add host whitelisting (#4476) · SillyTavern/SillyTavern@d134abd · GitHub

https://github.com/SillyTavern/SillyTavern/commit/d134abd50e4a416e3b81233242583b0a23f38320
generic

Configuration File | docs.ST.app

https://docs.sillytavern.app/administration/config-yaml/#host-whitelisting
generic

Administration | docs.ST.app

https://docs.sillytavern.app/administration/#security-checklist

Affected Packages

(1 across 1 ecosystem)
npm(1)
PackageVulnerable rangeFixed inDependents
sillytavern—1.13.4—

Weakness Classification(2)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 9× in last 7d / 43× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 114 total refreshes for this CVE.

  1. 2026-07-22 14:08 UTCEPSS rescore
  2. 2026-07-22 14:07 UTCEPSS rescore
  3. 2026-07-21 15:24 UTCEPSS rescore
  4. 2026-07-20 17:08 UTCEPSS rescore
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  20. 2026-07-10 04:53 UTCOSV refresh
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  1. 2026-07-06 02:23 UTCEPSS rescore
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  20. 2026-06-21 15:23 UTCOSV refresh
  21. 2026-06-21 14:56 UTCEPSS rescore
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  23. 2026-06-21 01:59 UTCEPSS rescore
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  25. 2026-06-19 19:25 UTCEPSS rescore
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  27. 2026-06-18 17:52 UTCEPSS rescore
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  42. 2026-06-08 14:16 UTCEPSS rescore
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  44. 2026-06-07 15:24 UTCEPSS rescore
  45. 2026-06-07 15:24 UTCEPSS rescore
  46. 2026-06-05 22:46 UTCEPSS rescore
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  48. 2026-06-04 13:12 UTCEPSS rescore
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  50. 2026-06-02 20:12 UTCEPSS rescore
  51. 2026-06-02 20:12 UTCEPSS rescore
  52. 2026-06-02 11:55 UTCOSV refresh
  53. 2026-06-01 13:51 UTCEPSS rescore
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  55. 2026-05-31 22:30 UTCEPSS rescore
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  59. 2026-05-29 13:44 UTCEPSS rescore
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  74. 2026-05-24 16:57 UTCEPSS rescore
  75. 2026-05-22 21:16 UTCEPSS rescore

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2025-59159?
CVE-2025-59159 is a critical vulnerability published on October 6, 2025. 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. In versions prior to 1.13.4, the web user interface for SillyTavern is susceptible to DNS rebinding, allowing…
When was CVE-2025-59159 disclosed?
CVE-2025-59159 was first published in the National Vulnerability Database on October 6, 2025, with the most recent update on April 15, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2025-59159 actively exploited?
CVE-2025-59159 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 14.6% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2025-59159?
CVE-2025-59159 has a CVSS v3 base score of 9.6 (NVD).
How do I remediate CVE-2025-59159?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2025-59159, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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