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vuln-cve/data/2026/41xxx/CVE-2026-41487.json
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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2026-41487",
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"state": "PUBLISHED",
"assignerShortName": "GitHub_M",
"dateReserved": "2026-04-20T16:14:19.007Z",
"datePublished": "2026-05-08T14:27:48.588Z",
"dateUpdated": "2026-05-08T19:44:31.496Z"
},
"containers": {
"cna": {
"title": "Langfuse: Improper role-based-access control in Langfuse LLM connection management allowed users of role “member” to retrieve stored LLM provider API keys",
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-284",
"lang": "en",
"description": "CWE-284: Improper Access Control",
"type": "CWE"
}
]
}
],
"metrics": [
{
"cvssV4_0": {
"attackVector": "NETWORK",
"attackComplexity": "LOW",
"attackRequirements": "NONE",
"privilegesRequired": "LOW",
"userInteraction": "NONE",
"vulnConfidentialityImpact": "LOW",
"vulnIntegrityImpact": "LOW",
"vulnAvailabilityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"subAvailabilityImpact": "NONE",
"baseScore": 5.3,
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N",
"version": "4.0"
}
}
],
"references": [
{
"name": "https://github.com/langfuse/langfuse/security/advisories/GHSA-2524-j966-gfgh",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/langfuse/langfuse/security/advisories/GHSA-2524-j966-gfgh"
},
{
"name": "https://github.com/langfuse/langfuse/pull/13027",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/langfuse/langfuse/pull/13027"
},
{
"name": "https://github.com/langfuse/langfuse/pull/13055",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/langfuse/langfuse/pull/13055"
},
{
"name": "https://github.com/langfuse/langfuse/commit/7527bb0d84bc0a3dc24a4b16d22ed2e46e6dddff",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/langfuse/langfuse/commit/7527bb0d84bc0a3dc24a4b16d22ed2e46e6dddff"
},
{
"name": "https://github.com/langfuse/langfuse/commit/e12386f9d4368bbfff24a4ad7fd53641091605ff",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/langfuse/langfuse/commit/e12386f9d4368bbfff24a4ad7fd53641091605ff"
},
{
"name": "https://github.com/langfuse/langfuse/releases/tag/v3.167.0",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/langfuse/langfuse/releases/tag/v3.167.0"
}
],
"affected": [
{
"vendor": "langfuse",
"product": "langfuse",
"versions": [
{
"version": ">= 3.68.0, < 3.167.0",
"status": "affected"
}
]
}
],
"providerMetadata": {
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M",
"dateUpdated": "2026-05-08T14:27:48.588Z"
},
"descriptions": [
{
"lang": "en",
"value": "Langfuse is an open source large language model engineering platform. From version 3.68.0 to before version 3.167.0, there is a role-based-access control flaw in the LLM connection update flow. An authenticated, low-privileged user of role “member” in a project could request the update of an existing LLM connection to an attacker-controlled baseUrl, causing Langfuse to reuse the stored provider secret and redirect the test request to an attacker-controlled endpoint. This could expose the plaintext provider LLM API key for that connection. The attack is only possible if a user is already part of a project and has “member” scoped access. This issue has been patched in version 3.167.0."
}
],
"source": {
"advisory": "GHSA-2524-j966-gfgh",
"discovery": "UNKNOWN"
}
},
"adp": [
{
"metrics": [
{
"other": {
"type": "ssvc",
"content": {
"timestamp": "2026-05-08T19:44:13.340871Z",
"id": "CVE-2026-41487",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"version": "2.0.3"
}
}
}
],
"title": "CISA ADP Vulnrichment",
"providerMetadata": {
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP",
"dateUpdated": "2026-05-08T19:44:31.496Z"
}
}
]
}
}