CVE-2026-78629

{"id": "CVE-2026-78629", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-78629", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-09-10T14:38:49.813878Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "psirt@okta.com", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 5.6, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:N/I:H/A:N", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}, "impactScore": 4.0, "exploitabilityScore": 1.1}]}, "affected": [{"source": "psirt@okta.com", "affectedData": [{"vendor": "Okta", "product": "Okta Hyperdrive Agent", "versions": [{"status": "affected", "version": "1.2.0", "lessThan": "1.5.2", "versionType": "semver"}], "defaultStatus": "unaffected"}]}], "published": "2026-09-08T21:18:41.347", "references": [{"url": "https://trust.okta.com/security-advisories/improper-authentication-verification-in-the-okta-hyperdrive-agent-mfa-response-handling-cve-2026-78629", "source": "psirt@okta.com"}], "vulnStatus": "Undergoing Analysis", "weaknesses": [{"type": "Secondary", "source": "psirt@okta.com", "description": [{"lang": "en", "value": "CWE-303"}]}], "descriptions": [{"lang": "en", "value": "The Okta Hyperdrive agent plugin returns a success response without a signed SAML assertion when the organization's policy requires no MFA for a given user. The response contains only a bare boolean validation indicator with no cryptographic artifact, resulting in an unverifiable authentication verdict being delivered to the relying application."}], "lastModified": "2026-09-10T15:17:42.413", "sourceIdentifier": "psirt@okta.com"}