{
    "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"
                }
            }
        ]
    }
}