{"id":"CVE-2021-3911","aliases":["GHSA-w6ww-fmfx-2x22","GO-2022-0252"],"title":"Misconfigured IP address field in ROA leads to OctoRPKI crash","summary":"Misconfigured IP address field in ROA leads to OctoRPKI crash","severity":"medium","cvss":4.2,"cvssVector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:N/I:N/A:H","vendor":"cloudflare","product":"github.com/cloudflare/cfrpki","ecosystem":"go","affected":["github.com/cloudflare/cfrpki < 1.4.0"],"patched":["github.com/cloudflare/cfrpki 1.4.0"],"published":"2021-11-10","updated":"2026-07-08","source":"OSV","sourceUrl":"https://osv.dev/vulnerability/GHSA-w6ww-fmfx-2x22","references":[{"url":"https://github.com/cloudflare/cfrpki/security/advisories/GHSA-w6ww-fmfx-2x22"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-3911"},{"url":"https://github.com/cloudflare/cfrpki/commit/2882307febd66801de97b2a2ce4d93fe58132005"},{"url":"https://github.com/cloudflare/cfrpki"},{"url":"https://pkg.go.dev/vuln/GO-2022-0252"},{"url":"https://www.debian.org/security/2022/dsa-5041"}],"tags":["osv","go"],"epss":0.00907,"epssPercentile":0.58367,"ingestedAt":"2026-07-09T18:56:36.954Z","slug":"CVE-2021-3911","body":"## Overview\n\nIf the ROA that a repository returns contains too many bits for the IP address then OctoRPKI will crash.\n\n## Patches\n\n## For more information\nIf you have any questions or comments about this advisory email us at security@cloudflare.com\n\n\n## Affected packages\n\n- `github.com/cloudflare/cfrpki < 1.4.0`\n\n## Remediation\n\nUpgrade to a patched release:\n\n- `github.com/cloudflare/cfrpki 1.4.0`","depth":"sunlit","depthScore":23,"depthScoreParts":{"impact":23.1,"likelihood":0.2,"exploitation":0,"ransomware":0},"changes":[]}