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8 vulnerabilities found for LibreChat by danny-avila

CVE-2025-66452 (GCVE-0-2025-66452)
Vulnerability from nvd
Published
2025-12-11 22:52
Modified
2025-12-12 19:28
Severity ?
5.3 (Medium) - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
CWE
  • CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Summary
LibreChat is a ChatGPT clone with additional features. In versions 0.8.0 and below, there is no handler for JSON parsing errors; SyntaxError from express.json() includes user input in the error message, which gets reflected in responses. User input (including HTML/JavaScript) can be exposed in error responses, creating an XSS risk if Content-Type isn't strictly enforced. This issue does not have a fix at the time of publication.
References
Impacted products
Vendor Product Version
danny-avila LibreChat Version: <= 0.8.1
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CVE-2025-66451 (GCVE-0-2025-66451)
Vulnerability from nvd
Published
2025-12-11 22:33
Modified
2025-12-12 19:29
Severity ?
5.3 (Medium) - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
CWE
  • CWE-20 - Improper Input Validation
  • CWE-915 - Improperly Controlled Modification of Dynamically-Determined Object Attributes
Summary
LibreChat is a ChatGPT clone with additional features. In versions 0.8.0 and below, when creating prompts, JSON requests are sent to define and modify the prompts via PATCH endpoint for prompt groups (/api/prompts/groups/:groupId). However, the request bodies are not sufficiently validated for proper input, enabling users to modify prompts in a way that was not intended as part of the front end system. The patchPromptGroup function passes req.body directly to updatePromptGroup() without filtering sensitive fields. This issue is fixed in version 0.8.1.
References
Impacted products
Vendor Product Version
danny-avila LibreChat Version: < 0.8.1
 Create a notification for this product.
Show details on NVD website

To clipboard 

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CVE-2025-66450 (GCVE-0-2025-66450)
Vulnerability from nvd
Published
2025-12-11 22:05
Modified
2025-12-12 19:30
Severity ?
8.6 (High) - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:N/SC:L/SI:L/SA:N
CWE
  • CWE-80 - Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)
Summary
LibreChat is a ChatGPT clone with additional features. In versions 0.8.0 and below, when a user posts a question, the iconURL parameter of the POST request can be modified by an attacker. The malicious code is then stored in the chat which can then be shared to other users. When sharing chats with a potentially malicious “tracker”, resources loaded can lead to loss of privacy for users who view the chat link that is sent to them. This issue is fixed in version 0.8.1.
References
Impacted products
Vendor Product Version
danny-avila LibreChat Version: < 0.8.1
 Create a notification for this product.
Show details on NVD website

To clipboard 

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CVE-2025-66201 (GCVE-0-2025-66201)
Vulnerability from nvd
Published
2025-11-29 01:26
Modified
2025-12-01 14:11
Severity ?
8.6 (High) - CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
CWE
  • CWE-20 - Improper Input Validation
  • CWE-918 - Server-Side Request Forgery (SSRF)
Summary
LibreChat is a ChatGPT clone with additional features. Prior to version 0.8.1-rc2, LibreChat is vulnerable to Server-side Request Forgery (SSRF), by passing specially crafted OpenAPI specs to its "Actions" feature and making the LLM use those actions. It could be used by an authenticated user with access to this feature to access URLs only accessible to the LibreChat server (such as cloud metadata services, through which impersonation of the server might be possible). This issue has been patched in version 0.8.1-rc2.
References
Impacted products
Vendor Product Version
danny-avila LibreChat Version: < 0.8.1-rc2
 Create a notification for this product.
Show details on NVD website

To clipboard 

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CVE-2025-66452 (GCVE-0-2025-66452)
Vulnerability from cvelistv5
Published
2025-12-11 22:52
Modified
2025-12-12 19:28
Severity ?
5.3 (Medium) - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
CWE
  • CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Summary
LibreChat is a ChatGPT clone with additional features. In versions 0.8.0 and below, there is no handler for JSON parsing errors; SyntaxError from express.json() includes user input in the error message, which gets reflected in responses. User input (including HTML/JavaScript) can be exposed in error responses, creating an XSS risk if Content-Type isn't strictly enforced. This issue does not have a fix at the time of publication.
References
Impacted products
Vendor Product Version
danny-avila LibreChat Version: <= 0.8.1
 Create a notification for this product.
Show details on NVD website

To clipboard 

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CVE-2025-66451 (GCVE-0-2025-66451)
Vulnerability from cvelistv5
Published
2025-12-11 22:33
Modified
2025-12-12 19:29
Severity ?
5.3 (Medium) - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
CWE
  • CWE-20 - Improper Input Validation
  • CWE-915 - Improperly Controlled Modification of Dynamically-Determined Object Attributes
Summary
LibreChat is a ChatGPT clone with additional features. In versions 0.8.0 and below, when creating prompts, JSON requests are sent to define and modify the prompts via PATCH endpoint for prompt groups (/api/prompts/groups/:groupId). However, the request bodies are not sufficiently validated for proper input, enabling users to modify prompts in a way that was not intended as part of the front end system. The patchPromptGroup function passes req.body directly to updatePromptGroup() without filtering sensitive fields. This issue is fixed in version 0.8.1.
References
Impacted products
Vendor Product Version
danny-avila LibreChat Version: < 0.8.1
 Create a notification for this product.
Show details on NVD website

To clipboard 

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CVE-2025-66450 (GCVE-0-2025-66450)
Vulnerability from cvelistv5
Published
2025-12-11 22:05
Modified
2025-12-12 19:30
Severity ?
8.6 (High) - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:N/SC:L/SI:L/SA:N
CWE
  • CWE-80 - Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)
Summary
LibreChat is a ChatGPT clone with additional features. In versions 0.8.0 and below, when a user posts a question, the iconURL parameter of the POST request can be modified by an attacker. The malicious code is then stored in the chat which can then be shared to other users. When sharing chats with a potentially malicious “tracker”, resources loaded can lead to loss of privacy for users who view the chat link that is sent to them. This issue is fixed in version 0.8.1.
References
Impacted products
Vendor Product Version
danny-avila LibreChat Version: < 0.8.1
 Create a notification for this product.
Show details on NVD website

To clipboard 

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CVE-2025-66201 (GCVE-0-2025-66201)
Vulnerability from cvelistv5
Published
2025-11-29 01:26
Modified
2025-12-01 14:11
Severity ?
8.6 (High) - CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
CWE
  • CWE-20 - Improper Input Validation
  • CWE-918 - Server-Side Request Forgery (SSRF)
Summary
LibreChat is a ChatGPT clone with additional features. Prior to version 0.8.1-rc2, LibreChat is vulnerable to Server-side Request Forgery (SSRF), by passing specially crafted OpenAPI specs to its "Actions" feature and making the LLM use those actions. It could be used by an authenticated user with access to this feature to access URLs only accessible to the LibreChat server (such as cloud metadata services, through which impersonation of the server might be possible). This issue has been patched in version 0.8.1-rc2.
References
Impacted products
Vendor Product Version
danny-avila LibreChat Version: < 0.8.1-rc2
 Create a notification for this product.
Show details on NVD website

To clipboard 

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