{"cve":"CVE-2026-32301","nvd":{"published":"2026-03-13T19:54:41.477","modified":"2026-06-17T10:35:31.590","status":"Analyzed","description":"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. This vulnerability is fixed in 6.7.0.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:N","score":9.3},"cwes":["CWE-918"],"references":["https://github.com/centrifugal/centrifugo/security/advisories/GHSA-j77h-rr39-c552"],"products":["centrifugal:centrifugo"],"source":"nvd","synced_at":"2026-10-19T22:25:53.701907451+00:00"},"epss":{"cve":"CVE-2026-32301","score":0.00268,"percentile":0.19006,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-j77h-rr39-c552","url":"https://osv.dev/vulnerability/GHSA-j77h-rr39-c552","summary":"Centrifugo: SSRF via unverified JWT claims interpolated into dynamic JWKS endpoint URL","modified":"2026-03-27T21:32:49.818235Z","packages":[{"ecosystem":"Go","name":"github.com/centrifugal/centrifugo/v6","purl":"pkg:golang/github.com/centrifugal/centrifugo/v6","ranges":["<6.7.0"],"fixed":["6.7.0"]},{"ecosystem":"Go","name":"github.com/centrifugal/centrifugo","purl":"pkg:golang/github.com/centrifugal/centrifugo","ranges":["<=2.4.0"],"fixed":[]},{"ecosystem":"Go","name":"github.com/centrifugal/centrifugo/v3","purl":"pkg:golang/github.com/centrifugal/centrifugo/v3","ranges":["<=3.2.3"],"fixed":[]},{"ecosystem":"Go","name":"github.com/centrifugal/centrifugo/v4","purl":"pkg:golang/github.com/centrifugal/centrifugo/v4","ranges":["<=4.1.5"],"fixed":[]},{"ecosystem":"Go","name":"github.com/centrifugal/centrifugo/v5","purl":"pkg:golang/github.com/centrifugal/centrifugo/v5","ranges":["<=5.4.9"],"fixed":[]}]},{"id":"GO-2026-4702","url":"https://osv.dev/vulnerability/GO-2026-4702","summary":"Centrifugo: SSRF via unverified JWT claims interpolated into dynamic JWKS endpoint URL in github.com/centrifugal/centrifugo","modified":"2026-03-26T21:02:53.486542Z","packages":[{"ecosystem":"Go","name":"github.com/centrifugal/centrifugo","purl":"pkg:golang/github.com/centrifugal/centrifugo","ranges":["all versions"],"fixed":[]},{"ecosystem":"Go","name":"github.com/centrifugal/centrifugo/v3","purl":"pkg:golang/github.com/centrifugal/centrifugo/v3","ranges":["all versions"],"fixed":[]},{"ecosystem":"Go","name":"github.com/centrifugal/centrifugo/v4","purl":"pkg:golang/github.com/centrifugal/centrifugo/v4","ranges":["all versions"],"fixed":[]},{"ecosystem":"Go","name":"github.com/centrifugal/centrifugo/v5","purl":"pkg:golang/github.com/centrifugal/centrifugo/v5","ranges":["all versions"],"fixed":[]},{"ecosystem":"Go","name":"github.com/centrifugal/centrifugo/v6","purl":"pkg:golang/github.com/centrifugal/centrifugo/v6","ranges":["<6.7.0"],"fixed":["6.7.0"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}