{"id":"CVE-2021-3910","aliases":["GHSA-5mxh-2qfv-4g7j","GO-2022-0251"],"title":"NUL character in ROA causes OctoRPKI to crash","summary":"NUL character in ROA causes OctoRPKI to crash","severity":"high","cvss":7.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/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-5mxh-2qfv-4g7j","references":[{"url":"https://github.com/cloudflare/cfrpki/security/advisories/GHSA-5mxh-2qfv-4g7j"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-3910"},{"url":"https://github.com/cloudflare/cfrpki/commit/76f0f7a98da001fa04e5bc0407c6702f91096bfa"},{"url":"https://github.com/cloudflare/cfrpki"},{"url":"https://github.com/cloudflare/cfrpki/releases/tag/v1.4.0"},{"url":"https://pkg.go.dev/vuln/GO-2022-0251"},{"url":"https://www.debian.org/security/2022/dsa-5041"}],"tags":["osv","go"],"epss":0.01297,"epssPercentile":0.69105,"ingestedAt":"2026-07-09T18:56:35.941Z","slug":"CVE-2021-3910","body":"## Overview\n\nOctoRPKI crashes when encountering a repository that returns an invalid ROA (just an encoded `NUL` (`\\0`) character).\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## 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":"twilight","depthScore":42,"depthScoreParts":{"impact":41.3,"likelihood":0.3,"exploitation":0,"ransomware":0},"changes":[]}