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CVE-2026-32301

Centrifugo is an open-source scalable real-time messaging server. Prior to 6.7.0, Centrifugo is vulnerable to Server-Side Request Forgery (SSRF) when configured with a dynamic JWKS endpoint URL using template variables (e.g. {{tenant}}). An unauthenticated attacker can craft a JWT with a malicious iss or aud claim value that gets interpolated into the JWKS fetch URL before the token signature is verified, causing Centrifugo to make an outbound HTTP request to an attacker-controlled destination.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:8bff03cbaae068b9a19a02b43443c92ff30eea00927aa267433d646e6741e39f
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0

Affected products and versions

1 source assertion
{"product":"centrifugo","vendor":"centrifugal","versions":[{"status":"affected","version":"< 6.7.0"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:388ccebf5564708a9533e5b62a44d2616240c99c1354fe679309a7c61f6fc4b6 · sha256:2b9244945886917b… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":9.3,"baseSeverity":"CRITICAL","confidentialityImpact":"HIGH","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"CHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:388ccebf5564708a9533e5b62a44d2616240c99c1354fe679309a7c61f6fc4b6 · sha256:2b9244945886917b… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-918","description":"CWE-918: Server-Side Request Forgery (SSRF)","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:388ccebf5564708a9533e5b62a44d2616240c99c1354fe679309a7c61f6fc4b6 · sha256:2b9244945886917b… · /containers/cna/problemTypes/0/descriptions/0

Source references

1 source assertion
{"name":"https://github.com/centrifugal/centrifugo/security/advisories/GHSA-j77h-rr39-c552","tags":["x_refsource_CONFIRM"],"url":"https://github.com/centrifugal/centrifugo/security/advisories/GHSA-j77h-rr39-c552"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:388ccebf5564708a9533e5b62a44d2616240c99c1354fe679309a7c61f6fc4b6 · sha256:2b9244945886917b… · /containers/cna/references/0

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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