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CVE-2026-44651 (GCVE-0-2026-44651)

Vulnerability from cvelistv5 – Published: 2026-05-29 17:49 – Updated: 2026-06-01 15:20

Title

SillyTavern: Reflected XSS vulnerability in the CORS proxy middleware

Summary

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 1.18.0, when fetch(url) throws, the code sends: res.status(500).send('Error occurred while trying to proxy to: ' + url + ' ' + error). The url value is attacker-controlled (req.params.url) and is not HTML-escaped before rendering. This vulnerability is fixed in 1.18.0.

Severity

6.9 (Medium)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator (v2.0.3)

CWE

CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Assigner

GitHub_M

References

1 reference

URL	Tags
https://github.com/SillyTavern/SillyTavern/securi…	x_refsource_CONFIRM

Impacted products

1 product

Vendor	Product	Version
SillyTavern	SillyTavern	Affected: < 1.18.0

Show details on NVD website

JSON

To clipboard

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                "id": "CVE-2026-44651",
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        }
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            "attackComplexity": "LOW",
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CVE-2026-44650 (GCVE-0-2026-44650)

Vulnerability from cvelistv5 – Published: 2026-05-29 17:48 – Updated: 2026-05-29 19:13

Title

SillyTavern: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Summary

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 1.18.0, POST /api/extensions/delete endpoint accepts extensionName: "." which bypasses sanitize-filename validation, causing the entire user extensions directory to be recursively deleted. No authentication is required in the default configuration. This vulnerability is fixed in 1.18.0.

Severity

9.1 (Critical)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H

SSVC

Exploitation: poc Automatable: yes Technical Impact: partial

CISA Coordinator (v2.0.3)

CWE

CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Assigner

GitHub_M

References

1 reference

URL	Tags
https://github.com/SillyTavern/SillyTavern/securi…	x_refsource_CONFIRM

Impacted products

1 product

Vendor	Product	Version
SillyTavern	SillyTavern	Affected: < 1.18.0

Show details on NVD website

JSON

To clipboard

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CVE-2026-44648 (GCVE-0-2026-44648)

Vulnerability from cvelistv5 – Published: 2026-05-29 17:46 – Updated: 2026-05-29 19:47

Title

SillyTavern: Existing sessions are not invalidated after password change, allowing session reuse and account takeover

Summary

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 1.18.0, SillyTavern relies on cookie-session for authentication, storing all session data (user handle, permissions) in a signed cookie. The endpoints POST /api/users/change-password and POST /api/users/recover-step2 only update the password hash in the database but do not expire current sessions. Because the session is stateless and stored entirely in the client cookie, there is no server-side mechanism to revoke a token once issued. This vulnerability is fixed in 1.18.0.

Severity

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

SSVC

Exploitation: poc Automatable: no Technical Impact: total

CISA Coordinator (v2.0.3)

CWE

CWE-613 - Insufficient Session Expiration

Assigner

GitHub_M

References

1 reference

URL	Tags
https://github.com/SillyTavern/SillyTavern/securi…	x_refsource_CONFIRM

Impacted products

1 product

Vendor	Product	Version
SillyTavern	SillyTavern	Affected: < 1.18.0

Show details on NVD website

JSON

To clipboard

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CVE-2026-44649 (GCVE-0-2026-44649)

Vulnerability from cvelistv5 – Published: 2026-05-29 17:45 – Updated: 2026-06-02 01:48

Title

SillyTavern: Authentication Bypass via SSO Header Injection

Summary

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 1.18.0, SillyTavern accepts Remote-User (Authelia) and X-Authentik-Username (Authentik) HTTP headers to automatically log in users when SSO is configured. There is no validation that these headers originate from a trusted reverse proxy. Any network client that can reach the SillyTavern port directly can inject these headers and authenticate as any user, including administrators, without a password. This vulnerability is exploitable only when sso.autheliaAuth: true or sso.authentikAuth: true is set in config.yaml (both default to false). This vulnerability is fixed in 1.18.0.

Severity

9.8 (Critical)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

SSVC

Exploitation: poc Automatable: yes Technical Impact: total

CISA Coordinator (v2.0.3)

CWE

CWE-290 - Authentication Bypass by Spoofing
CWE-306 - Missing Authentication for Critical Function
CWE-346 - Origin Validation Error
CWE-807 - Reliance on Untrusted Inputs in a Security Decision

Assigner

GitHub_M

References

1 reference

URL	Tags
https://github.com/SillyTavern/SillyTavern/securi…	x_refsource_CONFIRM

Impacted products

1 product

Vendor	Product	Version
SillyTavern	SillyTavern	Affected: < 1.18.0

Show details on NVD website

JSON

To clipboard

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CVE-2026-44652 (GCVE-0-2026-44652)

Vulnerability from cvelistv5 – Published: 2026-05-29 17:43 – Updated: 2026-05-29 21:40

Title

SillyTavern: SSRF vulnerability in the CORS proxy middleware

Summary

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 1.18.0, corsProxyMiddleware forwards req.params.url directly into fetch(url, ...). It only blocks circular requests to its own host and does not enforce destination allowlist or private/loopback restrictions, enabling SSRF. This vulnerability is fixed in 1.18.0.

Severity

6.9 (Medium)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator (v2.0.3)

CWE

CWE-918 - Server-Side Request Forgery (SSRF)

Assigner

GitHub_M

References

1 reference

URL	Tags
https://github.com/SillyTavern/SillyTavern/securi…	x_refsource_CONFIRM

Impacted products

1 product

Vendor	Product	Version
SillyTavern	SillyTavern	Affected: < 1.18.0

Show details on NVD website

JSON

To clipboard

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CVE-2026-46372 (GCVE-0-2026-46372)

Vulnerability from cvelistv5 – Published: 2026-05-29 17:41 – Updated: 2026-05-29 19:44

Title

SillyTavern: SSRF in SearXNG Search Proxy via Unvalidated baseUrl

Summary

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 1.18.0, SillyTavern exposes /api/search/searxng, which accepts attacker-controlled baseUrl and uses it directly to build outbound server-side fetches. An authenticated low-privilege user can point baseUrl at an internal or loopback HTTP service and receive the /search response body. This vulnerability is fixed in 1.18.0.

Severity

8.5 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N

SSVC

Exploitation: poc Automatable: no Technical Impact: partial

CISA Coordinator (v2.0.3)

CWE

CWE-918 - Server-Side Request Forgery (SSRF)

Assigner

GitHub_M

References

1 reference

URL	Tags
https://github.com/SillyTavern/SillyTavern/securi…	x_refsource_CONFIRM

Impacted products

1 product

Vendor	Product	Version
SillyTavern	SillyTavern	Affected: < 1.18.0

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
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        "metrics": [
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CVE-2026-34526 (GCVE-0-2026-34526)

Vulnerability from cvelistv5 – Published: 2026-04-02 17:16 – Updated: 2026-04-02 17:48

Title

SillyTavern: Incomplete IP validation in /api/search/visit allows SSRF via localhost and IPv6

Summary

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, in src/endpoints/search.js, the hostname is checked against /^\d+\.\d+\.\d+\.\d+$/. This only matches literal dotted-quad IPv4 (e.g. 127.0.0.1, 10.0.0.1). It does not catch: localhost (hostname, not dotted-quad), [::1] (IPv6 loopback), and DNS names resolving to internal addresses (e.g. localtest.me -> 127.0.0.1). A separate port check (urlObj.port !== '') limits exploitation to services on default ports (80/443), making this lower severity than a fully unrestricted SSRF. This issue has been patched in version 1.17.0.

Severity

5 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N

SSVC

Exploitation: poc Automatable: no Technical Impact: partial

CISA Coordinator (v2.0.3)

CWE

CWE-918 - Server-Side Request Forgery (SSRF)

Assigner

GitHub_M

References

2 references

URL	Tags
https://github.com/SillyTavern/SillyTavern/securi…	x_refsource_CONFIRM
https://github.com/SillyTavern/SillyTavern/releas…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
SillyTavern	SillyTavern	Affected: < 1.17.0

Show details on NVD website

JSON

To clipboard

{
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    "adp": [
      {
        "metrics": [
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CVE-2026-34524 (GCVE-0-2026-34524)

Vulnerability from cvelistv5 – Published: 2026-04-02 17:15 – Updated: 2026-04-03 18:12

Title

SillyTavern: Path traversal in `/api/chats/export` and `/api/chats/delete` allows arbitrary file read/delete within user data root

Summary

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.

Severity

8.3 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L

SSVC

Exploitation: poc Automatable: no Technical Impact: total

CISA Coordinator (v2.0.3)

CWE

CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Assigner

GitHub_M

References

2 references

URL	Tags
https://github.com/SillyTavern/SillyTavern/securi…	x_refsource_CONFIRM
https://github.com/SillyTavern/SillyTavern/releas…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
SillyTavern	SillyTavern	Affected: < 1.17.0

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
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CVE-2026-34523 (GCVE-0-2026-34523)

Vulnerability from cvelistv5 – Published: 2026-04-02 17:14 – Updated: 2026-04-03 15:56

Title

SillyTavern: Path traversal allows file existence oracle

Summary

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 the static file route handler allows any unauthenticated user to determine whether files exist anywhere on the server's filesystem. by sending percent-encoded "../" sequences (%2E%2E%2F) in requests to static file routes, an attacker can check for the existence of files. This issue has been patched in version 1.17.0.

Severity

5.3 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

SSVC

Exploitation: poc Automatable: yes Technical Impact: partial

CISA Coordinator (v2.0.3)

CWE

CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Assigner

GitHub_M

References

2 references

URL	Tags
https://github.com/SillyTavern/SillyTavern/securi…	x_refsource_CONFIRM
https://github.com/SillyTavern/SillyTavern/releas…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
SillyTavern	SillyTavern	Affected: < 1.17.0

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
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CVE-2026-34522 (GCVE-0-2026-34522)

Vulnerability from cvelistv5 – Published: 2026-04-02 17:13 – Updated: 2026-04-02 19:00

Title

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

Summary

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.

Severity

8.1 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H

SSVC

Exploitation: poc Automatable: no Technical Impact: partial

CISA Coordinator (v2.0.3)

CWE

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

Assigner

GitHub_M

References

2 references

URL	Tags
https://github.com/SillyTavern/SillyTavern/securi…	x_refsource_CONFIRM
https://github.com/SillyTavern/SillyTavern/releas…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
SillyTavern	SillyTavern	Affected: < 1.17.0

Show details on NVD website

JSON

To clipboard

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CVE-2026-26286 (GCVE-0-2026-26286)

Vulnerability from cvelistv5 – Published: 2026-02-19 21:02 – Updated: 2026-02-20 19:56

Title

SillyTavern has Server-Side Request Forgery (SSRF) via Asset Download Endpoint that Allows Reading Internal Services

Summary

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 1.16.0, a Server-Side Request Forgery (SSRF) vulnerability in the asset download endpoint allows authenticated users to make arbitrary HTTP requests from the server and read the full response body, enabling access to internal services, cloud metadata, and private network resources. The vulnerability has been patched in the version 1.16.0 by introducing a whitelist domain check for asset download requests. It can be reviewed and customized by editing the `whitelistImportDomains` array in the `config.yaml` file.

Severity

7.1 (High)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

SSVC

Exploitation: poc Automatable: no Technical Impact: partial

CISA Coordinator (v2.0.3)

CWE

CWE-918 - Server-Side Request Forgery (SSRF)

Assigner

GitHub_M

References

1 reference

URL	Tags
https://github.com/SillyTavern/SillyTavern/securi…	x_refsource_CONFIRM

Impacted products

1 product

Vendor	Product	Version
SillyTavern	SillyTavern	Affected: < 1.16.0

Show details on NVD website

JSON

To clipboard

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CVE-2025-59159 (GCVE-0-2025-59159)

Vulnerability from cvelistv5 – Published: 2025-10-06 15:31 – Updated: 2025-10-06 15:54

Title

SillyTavern Web Interface Vulnerable to DNS Rebinding

Summary

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.

Severity

9.7 (Critical)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

SSVC

Exploitation: poc Automatable: no Technical Impact: total

CISA Coordinator (v2.0.3)

CWE

CWE-346 - Origin Validation Error
CWE-940 - Improper Verification of Source of a Communication Channel

Assigner

GitHub_M

References

5 references

URL	Tags
https://github.com/SillyTavern/SillyTavern/securi…	x_refsource_CONFIRM
https://github.com/SillyTavern/SillyTavern/commit…	x_refsource_MISC
https://docs.sillytavern.app/administration/#secu…	x_refsource_MISC
https://docs.sillytavern.app/administration/confi…	x_refsource_MISC
https://github.com/SillyTavern/SillyTavern/releas…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
SillyTavern	SillyTavern	Affected: < 1.13.4

Show details on NVD website

JSON

To clipboard

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Search criteria

12 vulnerabilities by SillyTavern

CVE-2026-44651 (GCVE-0-2026-44651)

CVE-2026-44650 (GCVE-0-2026-44650)

CVE-2026-44648 (GCVE-0-2026-44648)

CVE-2026-44649 (GCVE-0-2026-44649)

CVE-2026-44652 (GCVE-0-2026-44652)

CVE-2026-46372 (GCVE-0-2026-46372)

CVE-2026-34526 (GCVE-0-2026-34526)

CVE-2026-34524 (GCVE-0-2026-34524)

CVE-2026-34523 (GCVE-0-2026-34523)

CVE-2026-34522 (GCVE-0-2026-34522)

CVE-2026-26286 (GCVE-0-2026-26286)

CVE-2025-59159 (GCVE-0-2025-59159)