CVE-2025-9799

Langfuse Webhook promptRouter.ts promptChangeEventSourcing server-side request forgery

State
Published
Severity
2.3 Low
Published
Sep 1, 2025
Updated
Sep 2, 2025
Reserved
Sep 1, 2025

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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.

Scores

CVSSScoreVectorSource
4.02.3 LowCVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:PVulDB
3.15.0 MediumCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:RVulDB
3.05.0 MediumCVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:RVulDB
2.04.6 MediumAV:N/AC:H/Au:S/C:P/I:P/A:P/E:POC/RL:ND/RC:URVulDB

Weaknesses

  • CWE-918 Server-Side Request Forgery

Affected Products

ProductVersions
Langfusen/a
  • 3.0Affected
  • 3.1Affected
  • 3.2Affected
  • 3.3Affected
  • 3.4Affected
  • 3.5Affected
  • 3.6Affected
  • 3.7Affected
  • 3.8Affected
  • 3.9Affected
  • 3.10Affected
  • 3.11Affected
  • 3.12Affected
  • 3.13Affected
  • 3.14Affected
  • 3.15Affected
  • 3.16Affected
  • 3.17Affected
  • 3.18Affected
  • 3.19Affected
  • 3.20Affected
  • 3.21Affected
  • 3.22Affected
  • 3.23Affected
  • 3.24Affected
  • and 64 more versions

References

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