{"id":"CVE-2021-3908","aliases":["GHSA-g5gj-9ggf-9vmq","GO-2022-0249"],"url":"https://o3.security/vulnerability/CVE-2021-3908","summary":"Infinite certificate chain depth results in OctoRPKI running forever","details":"OctoRPKI (github.com/cloudflare/cfrpki/cmd/octorpki) does not limit the depth of a certificate chain, allowing for a CA to create children in an ad-hoc fashion, thereby making tree traversal never end.\n\n### For more information\nIf you have any questions or comments about this advisory email us at security@cloudflare.com \n","published":"2021-11-11T22:15:07.877Z","modified":"2026-07-08T06:28:30.859422136Z","cvss":{"score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Go","name":"github.com/cloudflare/cfrpki","fixedVersion":"1.4.0"}],"fix":null,"references":[{"type":"ADVISORY","url":"https://github.com/cloudflare/cfrpki/security/advisories/GHSA-g5gj-9ggf-9vmq"},{"type":"ADVISORY","url":"https://www.debian.org/security/2022/dsa-5041"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2021-3908"},{"type":"PACKAGE","url":"https://github.com/cloudflare/cfrpki"},{"type":"WEB","url":"https://github.com/cloudflare/cfrpki/releases/tag/v1.4.0"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-08T06:28:30.859422136Z"}}