CVE-2026-49998

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Source
https://cve.org/CVERecord?id=CVE-2026-49998
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-49998.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2026-49998
Aliases
Downstream
Related
Published
2026-07-16T19:33:33Z
Modified
2026-10-16T02:59:54Z
Severity
  • 8.2 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N CVSS Calculator
Summary
Centrifugo: Dynamic JWKS key cache keyed only by `kid` allows cross-issuer JWT authentication bypass
Details

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.

Database specific 
{
    "cna_assigner":  "GitHub_M",
    "cwe_ids":  [
        "CWE-347"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/49xxx/CVE-2026-49998.json"
}
References

Affected packages

Git / github.com/centrifugal/centrifugo

Affected ranges

Type
GIT
Repo
https://github.com/centrifugal/centrifugo
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
c1246c5472ff9700868ee768e72de2911a3e4f2b
Fixed
15d785015c6f318c1b68ea40b813699c9f8bd2c4
Database specific
Show details 
{
    "extracted_events":  [
        {
            "range":  [
                {
                    "introduced":  "0"
                },
                {
                    "fixed":  "6.8.1"
                }
            ],
            "source":  "AFFECTED_FIELD",
            "strategy":  "StringRangeExpression"
        },
        {
            "range":  [
                {
                    "fixed":  "15d785015c6f318c1b68ea40b813699c9f8bd2c4"
                }
            ],
            "source":  "REFERENCES_COMMIT"
        },
        {
            "original_tag":  "v6.8.1",
            "range":  [
                {
                    "fixed":  "c1246c5472ff9700868ee768e72de2911a3e4f2b"
                }
            ],
            "source":  "REFERENCES_TAG"
        }
    ]
}

Affected versions

v0.*
v0.1.0
v0.1.1
v0.2.0
v0.2.1
v0.2.2
v0.2.3
v0.2.4
v0.3.0
v1.*
v1.0.0
v1.1.0
v1.2.0
v1.3.0
v1.3.1
v1.3.2
v1.3.3
v1.4.0
v1.4.1
v1.4.2
v1.4.3
v1.4.4
v1.4.5
v1.5.0
v1.5.1
v1.6.0
v1.6.1
v1.6.2
v1.6.3
v1.6.4
v1.6.5
v1.7.0
v1.7.1
v1.7.2
v1.7.3
v1.7.4
v1.7.5
v1.7.6
v1.7.7
v1.7.8
v1.7.9
v1.8.0
v2.*
v2.0.0
v2.0.1
v2.0.2
v2.1.0
v2.2.0
v2.2.1
v2.2.2
v2.2.3
v2.2.4
v2.2.5
v2.2.6
v2.2.7
v2.3.0
v2.3.1
v2.4.0
v2.5.0
v2.5.1
v2.6.0
v2.6.1
v2.6.2
v2.7.0
v2.7.1
v2.7.2
v2.8.0
v2.8.1
v2.8.2
v2.8.3
v2.8.4
v2.8.5
v2.8.6
v3.*
v3.0.0
v3.0.1
v3.0.2
v3.0.3
v3.0.4
v3.0.5
v3.1.0
v3.1.1
v3.2.0
v3.2.1
v3.2.2
v3.2.3
v4.*
v4.0.0
v4.0.1
v4.0.2
v4.0.3
v4.0.4
v4.1.0
v4.1.1
v4.1.2
v4.1.3
v5.*
v5.0.0
v5.0.1
v5.0.2
v5.0.3
v5.0.4
v5.1.0
v5.1.1
v5.1.2
v5.2.0
v5.2.1
v5.2.2
v5.3.0
v5.3.1
v5.3.2
v5.4.0
v5.4.1
v5.4.2
v5.4.3
v5.4.4
v5.4.5
v5.4.6
v5.4.7
v5.4.8
v5.4.9
v6.*
v6.0.0
v6.0.1
v6.0.2
v6.0.3
v6.1.0
v6.2.0
v6.2.1
v6.2.2
v6.2.3
v6.2.4
v6.2.5
v6.3.0
v6.3.1
v6.4.0
v6.5.0
v6.5.1
v6.5.2
v6.6.0
v6.6.1
v6.6.2
v6.7.0
v6.7.1
v6.7.2
v6.8.0

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-49998.json"