CVE-2026-78633

Denial of Service in Okta RADIUS Agent Packet Parser

Published Oct 13, 2026 CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed
Description
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.

Remediation

Vendor Solution

Upgrade the Okta RADIUS Agent to version 2.28.0 or greater.

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Okta
Okta okta Radius Agent
Vendors & Products Okta
Okta okta Radius Agent
Type Values Removed Values Added
Description 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.
Title Denial of Service in Okta RADIUS Agent Packet Parser
Weaknesses CWE-835
References
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
Okta
Published
Updated
Oct 16, 2026, 3:31 PM
Reserved
Aug 24, 2026, 10:04 PM
Status
Awaiting Analysis
Published
Oct 13, 2026, 9:18 PM
Modified
Oct 16, 2026, 4:21 PM