CVE-2025-9799— Langfuse Webhook promptRouter.ts promptChangeEventSourcing server-side request forgery
Quick assessment
Affected
n/a Langfuse
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
langfuse是Langfuse开源的一个大语言模型工程平台。 langfuse 3.88.0及之前版本存在代码问题漏洞，该漏洞源于对文件web/src/features/prompts/server/routers/promptRouter.ts中函数promptChangeEventSourcing的错误操作导致服务端请求伪造。
Possible ATT&CK Techniques 1 AI
T1105 · Ingress Tool Transfer
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I. Basic Information for CVE-2025-9799
Vulnerability Information
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Vulnerability Title
Langfuse Webhook promptRouter.ts promptChangeEventSourcing server-side request forgery
Source: CVE Program / CVE List V5
Vulnerability Description
A security flaw has been discovered in Langfuse up to 3.88.0. Affected by this vulnerability is the function promptChangeEventSourcing of the file web/src/features/prompts/server/routers/promptRouter.ts of the component Webhook Handler. Performing manipulation results in server-side request forgery. The attack may be initiated remotely. A high degree of complexity is needed for the attack. The exploitation appears to be difficult. The exploit has been released to the public and may be exploited.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
服务端请求伪造(SSRF)
Source: CVE Program / CVE List V5
Vulnerability Title
langfuse 代码问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
langfuse是Langfuse开源的一个大语言模型工程平台。 langfuse 3.88.0及之前版本存在代码问题漏洞，该漏洞源于对文件web/src/features/prompts/server/routers/promptRouter.ts中函数promptChangeEventSourcing的错误操作导致服务端请求伪造。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| - | Langfuse | 3.0 | - |
|
II. Public POCs for CVE-2025-9799
| # | POC Description | Source Link | Shenlong Link |
|---|
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Same Patch Batch · n/a · 2025-09-01 · 6 CVEs total
| CVE-2025-9775 | 7.3 HIGH | RemoteClinic edit-my-profile.php unrestricted upload |
| CVE-2025-9772 | 7.3 HIGH | RemoteClinic edit.php unrestricted upload |
| CVE-2025-9802 | 4.7 MEDIUM | RemoteClinic profile.php sql injection |
| CVE-2025-9774 | 4.3 MEDIUM | RemoteClinic edit-patient.php information disclosure |
| CVE-2025-9773 | 4.3 MEDIUM | RemoteClinic edit.php cross site scripting |
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