{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-49998",
        "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "state": "PUBLISHED",
        "assignerShortName": "GitHub_M",
        "dateReserved": "2026-06-02T18:30:51.283Z",
        "datePublished": "2026-07-16T19:33:33.147Z",
        "dateUpdated": "2026-07-17T11:13:39.150Z"
    },
    "containers": {
        "cna": {
            "title": "Centrifugo: Dynamic JWKS key cache keyed only by `kid` allows cross-issuer JWT authentication bypass",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-347",
                            "lang": "en",
                            "description": "CWE-347: Improper Verification of Cryptographic Signature",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "metrics": [
                {
                    "cvssV3_1": {
                        "attackComplexity": "HIGH",
                        "attackVector": "NETWORK",
                        "availabilityImpact": "NONE",
                        "baseScore": 8.2,
                        "baseSeverity": "HIGH",
                        "confidentialityImpact": "HIGH",
                        "integrityImpact": "HIGH",
                        "privilegesRequired": "LOW",
                        "scope": "CHANGED",
                        "userInteraction": "NONE",
                        "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N",
                        "version": "3.1"
                    }
                }
            ],
            "references": [
                {
                    "name": "https://github.com/centrifugal/centrifugo/security/advisories/GHSA-g6vg-wj8f-48cj",
                    "tags": [
                        "x_refsource_CONFIRM"
                    ],
                    "url": "https://github.com/centrifugal/centrifugo/security/advisories/GHSA-g6vg-wj8f-48cj"
                },
                {
                    "name": "https://github.com/centrifugal/centrifugo/pull/1142",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/centrifugal/centrifugo/pull/1142"
                },
                {
                    "name": "https://github.com/centrifugal/centrifugo/commit/15d785015c6f318c1b68ea40b813699c9f8bd2c4",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/centrifugal/centrifugo/commit/15d785015c6f318c1b68ea40b813699c9f8bd2c4"
                },
                {
                    "name": "https://github.com/centrifugal/centrifugo/releases/tag/v6.8.1",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/centrifugal/centrifugo/releases/tag/v6.8.1"
                }
            ],
            "affected": [
                {
                    "vendor": "centrifugal",
                    "product": "centrifugo",
                    "versions": [
                        {
                            "version": "< 6.8.1",
                            "status": "affected"
                        }
                    ]
                }
            ],
            "providerMetadata": {
                "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
                "shortName": "GitHub_M",
                "dateUpdated": "2026-07-16T19:33:33.147Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "Centrifugo is an open-source scalable real-time messaging server. Prior to 6.8.1, Centrifugo dynamic JWKS endpoint verification could reuse a key for one allowed issuer to verify a JWT for another allowed issuer because the JWKS cache and singleflight lookup were keyed only by JWT header kid, not by the resolved JWKS endpoint, issuer, audience, or trust-domain namespace, affecting client.token.jwks_public_endpoint, client.subscription_token.jwks_public_endpoint, internal/jwks/cache.go, and internal/jwks/manager.go. This issue is fixed in version 6.8.1."
                }
            ],
            "source": {
                "advisory": "GHSA-g6vg-wj8f-48cj",
                "discovery": "UNKNOWN"
            }
        },
        "adp": [
            {
                "references": [
                    {
                        "url": "https://github.com/centrifugal/centrifugo/security/advisories/GHSA-g6vg-wj8f-48cj",
                        "tags": [
                            "exploit"
                        ]
                    }
                ],
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-07-17T11:13:16.710942Z",
                                "id": "CVE-2026-49998",
                                "options": [
                                    {
                                        "Exploitation": "poc"
                                    },
                                    {
                                        "Automatable": "no"
                                    },
                                    {
                                        "Technical Impact": "total"
                                    }
                                ],
                                "role": "CISA Coordinator",
                                "version": "2.0.3"
                            }
                        }
                    }
                ],
                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
                    "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
                    "shortName": "CISA-ADP",
                    "dateUpdated": "2026-07-17T11:13:39.150Z"
                }
            }
        ]
    }
}