{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-78633", "assignerOrgId": "59b22baa-87b2-4371-8e4a-e080df12f74a", "state": "PUBLISHED", "assignerShortName": "Okta", "dateReserved": "2026-08-24T22:04:00.475Z", "datePublished": "2026-10-13T20:08:40.528Z", "dateUpdated": "2026-10-16T15:31:55.280Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "59b22baa-87b2-4371-8e4a-e080df12f74a", "shortName": "Okta", "dateUpdated": "2026-10-13T20:16:34.296Z"}, "title": "Denial of Service in Okta RADIUS Agent Packet Parser", "problemTypes": [{"descriptions": [{"lang": "en", "description": "Loop with Unreachable Exit Condition ('Infinite Loop')", "cweId": "CWE-835"}]}], "affected": [{"vendor": "Okta", "product": "Okta RADIUS Agent", "versions": [{"version": "2.17.5", "status": "affected", "lessThan": "2.28.0", "versionType": "semver"}], "defaultStatus": "unaffected"}], "descriptions": [{"lang": "en", "value": "The Okta RADIUS Agent does not validate the sub-attribute length when parsing a Vendor-Specific attribute. A sub-attribute length of zero causes the parser to loop indefinitely, resulting in worker-thread exhaustion and denial of new RADIUS authentication requests."}], "metrics": [{"cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "baseScore": 6.5, "baseSeverity": "MEDIUM", "attackVector": "ADJACENT_NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "HIGH"}}], "solutions": [{"lang": "en", "value": "Upgrade the Okta RADIUS Agent to version 2.28.0 or greater."}], "references": [{"url": "https://trust.okta.com/security-advisories/denial-of-service-in-okta-radius-agent-packet-parser-cve-2026-78633"}]}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-78633", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-10-16T15:26:09.166312Z"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-10-16T15:31:55.280Z"}}]}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Okta RADIUS Agent", "vendor": "Okta", "versions": [{"lessThan": "2.28.0", "status": "affected", "version": "2.17.5", "versionType": "semver"}]}], "source": "psirt@okta.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "The Okta RADIUS Agent does not validate the sub-attribute length when parsing a Vendor-Specific attribute. A sub-attribute length of zero causes the parser to loop indefinitely, resulting in worker-thread exhaustion and denial of new RADIUS authentication requests."}], "id": "CVE-2026-78633", "lastModified": "2026-10-16T16:21:03.670", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "ADJACENT_NETWORK", "availabilityImpact": "HIGH", "baseScore": 6.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 3.6, "source": "psirt@okta.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-78633", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-10-16T15:26:09.166312Z", "version": "2.0.3"}}]}, "published": "2026-10-13T21:18:21.853", "references": [{"source": "psirt@okta.com", "url": "https://trust.okta.com/security-advisories/denial-of-service-in-okta-radius-agent-packet-parser-cve-2026-78633"}], "sourceIdentifier": "psirt@okta.com", "vulnStatus": "Awaiting Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-835"}], "source": "psirt@okta.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[2.17.5,2.28.0)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "cna", "scores": [{"score": 100.0, "source": "cna"}]}, "original": {"product": "Okta RADIUS Agent", "source": "cna", "vendor": "Okta"}, "product": "okta_radius_agent", "vendor": "okta"}], "created": "2026-10-14T20:00:07.834194+00:00", "updated": "2026-10-19T13:09:49.500297+00:00", "vendors": ["okta", "okta$PRODUCT$okta_radius_agent"]}