CVE-2025-9799
Estado: AnalizadaBaja (1.3)—
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.
CVSS
- Versión: 4.0
- Vector: 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
- Puntuación base: 1.3
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.29%
- Percentil entre todas las CVEs puntuadas: 19
- Fecha de la puntuación: 5/10/2026
EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).
Tecnologías afectadas (1)
CWE
- CWE-918
Referencias
JSON original (NVD)
Mostrar
{
"id": "CVE-2025-9799",
"cveTags": [],
"metrics": {
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2025-9799",
"role": "CISA Coordinator",
"options": [
{
"exploitation": "poc"
},
{
"automatable": "no"
},
{
"technicalImpact": "partial"
}
],
"version": "2.0.3",
"timestamp": "2025-09-02T19:51:53.283383Z"
}
}
],
"cvssMetricV2": [
{
"type": "Secondary",
"source": "cna@vuldb.com",
"cvssData": {
"version": "2.0",
"baseScore": 4.6,
"accessVector": "NETWORK",
"vectorString": "AV:N/AC:H/Au:S/C:P/I:P/A:P",
"authentication": "SINGLE",
"integrityImpact": "PARTIAL",
"accessComplexity": "HIGH",
"availabilityImpact": "PARTIAL",
"confidentialityImpact": "PARTIAL"
},
"acInsufInfo": false,
"impactScore": 6.4,
"baseSeverity": "MEDIUM",
"obtainAllPrivilege": false,
"exploitabilityScore": 3.9,
"obtainUserPrivilege": false,
"obtainOtherPrivilege": false,
"userInteractionRequired": false
}
],
"cvssMetricV31": [
{
"type": "Secondary",
"source": "cna@vuldb.com",
"cvssData": {
"scope": "UNCHANGED",
"version": "3.1",
"baseScore": 5,
"attackVector": "NETWORK",
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L",
"integrityImpact": "LOW",
"userInteraction": "NONE",
"attackComplexity": "HIGH",
"availabilityImpact": "LOW",
"privilegesRequired": "LOW",
"confidentialityImpact": "LOW"
},
"impactScore": 3.4,
"exploitabilityScore": 1.6
}
],
"cvssMetricV40": [
{
"type": "Secondary",
"source": "cna@vuldb.com",
"cvssData": {
"Safety": "NOT_DEFINED",
"version": "4.0",
"Recovery": "NOT_DEFINED",
"baseScore": 1.3,
"Automatable": "NOT_DEFINED",
"attackVector": "NETWORK",
"baseSeverity": "LOW",
"valueDensity": "NOT_DEFINED",
"vectorString": "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",
"exploitMaturity": "PROOF_OF_CONCEPT",
"providerUrgency": "NOT_DEFINED",
"userInteraction": "NONE",
"attackComplexity": "HIGH",
"attackRequirements": "NONE",
"privilegesRequired": "LOW",
"subIntegrityImpact": "NONE",
"vulnIntegrityImpact": "LOW",
"integrityRequirement": "NOT_DEFINED",
"modifiedAttackVector": "NOT_DEFINED",
"subAvailabilityImpact": "NONE",
"vulnAvailabilityImpact": "LOW",
"availabilityRequirement": "NOT_DEFINED",
"modifiedUserInteraction": "NOT_DEFINED",
"modifiedAttackComplexity": "NOT_DEFINED",
"subConfidentialityImpact": "NONE",
"vulnConfidentialityImpact": "LOW",
"confidentialityRequirement": "NOT_DEFINED",
"modifiedAttackRequirements": "NOT_DEFINED",
"modifiedPrivilegesRequired": "NOT_DEFINED",
"modifiedSubIntegrityImpact": "NOT_DEFINED",
"modifiedVulnIntegrityImpact": "NOT_DEFINED",
"vulnerabilityResponseEffort": "NOT_DEFINED",
"modifiedSubAvailabilityImpact": "NOT_DEFINED",
"modifiedVulnAvailabilityImpact": "NOT_DEFINED",
"modifiedSubConfidentialityImpact": "NOT_DEFINED",
"modifiedVulnConfidentialityImpact": "NOT_DEFINED"
}
}
]
},
"affected": [
{
"source": "cna@vuldb.com",
"affectedData": [
{
"vendor": "n/a",
"modules": [
"Webhook Handler"
],
"product": "Langfuse",
"versions": [
{
"status": "affected",
"version": "3.0"
},
{
"status": "affected",
"version": "3.1"
},
{
"status": "affected",
"version": "3.2"
},
{
"status": "affected",
"version": "3.3"
},
{
"status": "affected",
"version": "3.4"
},
{
"status": "affected",
"version": "3.5"
},
{
"status": "affected",
"version": "3.6"
},
{
"status": "affected",
"version": "3.7"
},
{
"status": "affected",
"version": "3.8"
},
{
"status": "affected",
"version": "3.9"
},
{
"status": "affected",
"version": "3.10"
},
{
"status": "affected",
"version": "3.11"
},
{
"status": "affected",
"version": "3.12"
},
{
"status": "affected",
"version": "3.13"
},
{
"status": "affected",
"version": "3.14"
},
{
"status": "affected",
"version": "3.15"
},
{
"status": "affected",
"version": "3.16"
},
{
"status": "affected",
"version": "3.17"
},
{
"status": "affected",
"version": "3.18"
},
{
"status": "affected",
"version": "3.19"
},
{
"status": "affected",
"version": "3.20"
},
{
"status": "affected",
"version": "3.21"
},
{
"status": "affected",
"version": "3.22"
},
{
"status": "affected",
"version": "3.23"
},
{
"status": "affected",
"version": "3.24"
},
{
"status": "affected",
"version": "3.25"
},
{
"status": "affected",
"version": "3.26"
},
{
"status": "affected",
"version": "3.27"
},
{
"status": "affected",
"version": "3.28"
},
{
"status": "affected",
"version": "3.29"
},
{
"status": "affected",
"version": "3.30"
},
{
"status": "affected",
"version": "3.31"
},
{
"status": "affected",
"version": "3.32"
},
{
"status": "affected",
"version": "3.33"
},
{
"status": "affected",
"version": "3.34"
},
{
"status": "affected",
"version": "3.35"
},
{
"status": "affected",
"version": "3.36"
},
{
"status": "affected",
"version": "3.37"
},
{
"status": "affected",
"version": "3.38"
},
{
"status": "affected",
"version": "3.39"
},
{
"status": "affected",
"version": "3.40"
},
{
"status": "affected",
"version": "3.41"
},
{
"status": "affected",
"version": "3.42"
},
{
"status": "affected",
"version": "3.43"
},
{
"status": "affected",
"version": "3.44"
},
{
"status": "affected",
"version": "3.45"
},
{
"status": "affected",
"version": "3.46"
},
{
"status": "affected",
"version": "3.47"
},
{
"status": "affected",
"version": "3.48"
},
{
"status": "affected",
"version": "3.49"
},
{
"status": "affected",
"version": "3.50"
},
{
"status": "affected",
"version": "3.51"
},
{
"status": "affected",
"version": "3.52"
},
{
"status": "affected",
"version": "3.53"
},
{
"status": "affected",
"version": "3.54"
},
{
"status": "affected",
"version": "3.55"
},
{
"status": "affected",
"version": "3.56"
},
{
"status": "affected",
"version": "3.57"
},
{
"status": "affected",
"version": "3.58"
},
{
"status": "affected",
"version": "3.59"
},
{
"status": "affected",
"version": "3.60"
},
{
"status": "affected",
"version": "3.61"
},
{
"status": "affected",
"version": "3.62"
},
{
"status": "affected",
"version": "3.63"
},
{
"status": "affected",
"version": "3.64"
},
{
"status": "affected",
"version": "3.65"
},
{
"status": "affected",
"version": "3.66"
},
{
"status": "affected",
"version": "3.67"
},
{
"status": "affected",
"version": "3.68"
},
{
"status": "affected",
"version": "3.69"
},
{
"status": "affected",
"version": "3.70"
},
{
"status": "affected",
"version": "3.71"
},
{
"status": "affected",
"version": "3.72"
},
{
"status": "affected",
"version": "3.73"
},
{
"status": "affected",
"version": "3.74"
},
{
"status": "affected",
"version": "3.75"
},
{
"status": "affected",
"version": "3.76"
},
{
"status": "affected",
"version": "3.77"
},
{
"status": "affected",
"version": "3.78"
},
{
"status": "affected",
"version": "3.79"
},
{
"status": "affected",
"version": "3.80"
},
{
"status": "affected",
"version": "3.81"
},
{
"status": "affected",
"version": "3.82"
},
{
"status": "affected",
"version": "3.83"
},
{
"status": "affected",
"version": "3.84"
},
{
"status": "affected",
"version": "3.85"
},
{
"status": "affected",
"version": "3.86"
},
{
"status": "affected",
"version": "3.87"
},
{
"status": "affected",
"version": "3.88.0"
}
]
}
]
}
],
"published": "2025-09-01T22:15:31.283",
"references": [
{
"url": "https://github.com/langfuse/langfuse/issues/8522",
"tags": [
"Exploit",
"Issue Tracking"
],
"source": "cna@vuldb.com"
},
{
"url": "https://github.com/langfuse/langfuse/issues/8522#issue-3320549867",
"tags": [
"Exploit",
"Issue Tracking"
],
"source": "cna@vuldb.com"
},
{
"url": "https://vuldb.com/?ctiid.322114",
"tags": [
"Permissions Required",
"VDB Entry"
],
"source": "cna@vuldb.com"
},
{
"url": "https://vuldb.com/?id.322114",
"tags": [
"Third Party Advisory",
"VDB Entry"
],
"source": "cna@vuldb.com"
},
{
"url": "https://vuldb.com/?submit.641128",
"tags": [
"Third Party Advisory",
"VDB Entry"
],
"source": "cna@vuldb.com"
}
],
"vulnStatus": "Analyzed",
"weaknesses": [
{
"type": "Secondary",
"source": "cna@vuldb.com",
"description": [
{
"lang": "en",
"value": "CWE-918"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "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."
}
],
"lastModified": "2026-06-17T10:09:47.503",
"configurations": [
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:langfuse:langfuse:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "F5561CC2-09A8-4C6D-84CD-E804A8FBFED7",
"versionEndIncluding": "3.88.0"
}
],
"operator": "OR"
}
]
}
],
"sourceIdentifier": "cna@vuldb.com"
}