{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-30836", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-03-05T21:06:44.606Z", "datePublished": "2026-03-19T20:37:05.757Z", "dateUpdated": "2026-03-19T20:37:05.757Z"}, "containers": {"cna": {"title": "Step CA: Unauthenticated Certificate Issuance via SCEP UpdateReq (MessageType=18)", "problemTypes": [{"descriptions": [{"cweId": "CWE-287", "lang": "en", "description": "CWE-287: Improper Authentication", "type": "CWE"}]}, {"descriptions": [{"cweId": "CWE-295", "lang": "en", "description": "CWE-295: Improper Certificate Validation", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 10, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N", "version": "3.1"}}], "references": [{"name": "https://github.com/smallstep/certificates/security/advisories/GHSA-q4r8-xm5f-56gw", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/smallstep/certificates/security/advisories/GHSA-q4r8-xm5f-56gw"}, {"name": "https://github.com/smallstep/certificates/commit/e6da031d5125cfd99fe9a26f74bb41e4dacca4ef", "tags": ["x_refsource_MISC"], "url": "https://github.com/smallstep/certificates/commit/e6da031d5125cfd99fe9a26f74bb41e4dacca4ef"}, {"name": "https://github.com/smallstep/certificates/releases/tag/v0.30.0-rc7", "tags": ["x_refsource_MISC"], "url": "https://github.com/smallstep/certificates/releases/tag/v0.30.0-rc7"}], "affected": [{"vendor": "smallstep", "product": "certificates", "versions": [{"version": "< 0.30.0", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-03-19T20:37:05.757Z"}, "descriptions": [{"lang": "en", "value": "Step CA is an online certificate authority for secure, automated certificate management for DevOps. Versions 0.30.0-rc6 and below do not safeguard against unauthenticated certificate issuance through the SCEP UpdateReq. This issue has been fixed in version 0.30.0."}], "source": {"advisory": "GHSA-q4r8-xm5f-56gw", "discovery": "UNKNOWN"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "Step CA is an online certificate authority for secure, automated certificate management for DevOps. Versions 0.30.0-rc6 and below do not safeguard against unauthenticated certificate issuance through the SCEP UpdateReq. This issue has been fixed in version 0.30.0."}], "id": "CVE-2026-30836", "lastModified": "2026-03-20T13:39:46.493", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 10.0, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 5.8, "source": "[email protected]", "type": "Secondary"}]}, "published": "2026-03-19T21:17:09.783", "references": [{"source": "[email protected]", "url": "https://github.com/smallstep/certificates/commit/e6da031d5125cfd99fe9a26f74bb41e4dacca4ef"}, {"source": "[email protected]", "url": "https://github.com/smallstep/certificates/releases/tag/v0.30.0-rc7"}, {"source": "[email protected]", "url": "https://github.com/smallstep/certificates/security/advisories/GHSA-q4r8-xm5f-56gw"}], "sourceIdentifier": "[email protected]", "vulnStatus": "Awaiting Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-287"}, {"lang": "en", "value": "CWE-295"}], "source": "[email protected]", "type": "Primary"}]}

{"bugzilla": {"description": "github.com/smallstep/certificates: Step CA: Unauthenticated certificate issuance via SCEP Update Request", "id": "2449211", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2449211"}, "csaw": false, "cvss3": {"cvss3_base_score": "10.0", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N", "status": "draft"}, "cwe": "CWE-306", "details": ["A flaw was found in Step CA, an online certificate authority. A remote attacker can exploit this vulnerability by sending an unauthenticated SCEP (Simple Certificate Enrollment Protocol) Update Request. This allows the attacker to issue unauthorized certificates, potentially leading to a compromise of the certificate management system and enabling further attacks such as impersonation or man-in-the-middle attacks."], "name": "CVE-2026-30836", "public_date": "2026-03-19T20:37:05Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-30836\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-30836\nhttps://github.com/smallstep/certificates/commit/e6da031d5125cfd99fe9a26f74bb41e4dacca4ef\nhttps://github.com/smallstep/certificates/compare/v0.30.0-rc6...v0.30.0-rc7\nhttps://github.com/smallstep/certificates/releases/tag/v0.30.0-rc7\nhttps://github.com/smallstep/certificates/security/advisories/GHSA-q4r8-xm5f-56gw"], "statement": "No Red Hat products are impacted. The affected component (Step CA) is not used or provided by any products.", "threat_severity": "Critical"}