{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "versions": [
              {
                "introduced": "0"
              },
              {
                "last_affected": "3.88.0"
              }
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "e07120b16361c6a3417addb12a0440a8dd204c64"
            }
          ],
          "repo": "https://github.com/langfuse/langfuse",
          "type": "GIT"
        }
      ]
    }
  ],
  "details": "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.",
  "id": "CVE-2025-9799",
  "modified": "2026-04-01T23:10:40.372318430Z",
  "published": "2025-09-01T22:15:31.283Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://vuldb.com/?id.322114"
    },
    {
      "type": "ADVISORY",
      "url": "https://vuldb.com/?submit.641128"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/langfuse/langfuse/issues/8522#issue-3320549867"
    },
    {
      "type": "REPORT",
      "url": "https://vuldb.com/?ctiid.322114"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/langfuse/langfuse/issues/8522"
    }
  ],
  "severity": [
    {
      "score": "CVSS: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:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
      "type": "CVSS_V4"
    }
  ]
}