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Vulnerabilities

Vulnerability · CVE-2026-78633

The Okta RADIUS Agent does not validate the sub-attribute length when parsing a Vendor-Specific attribute.

Published Oct 13, 2026 · catalog updated Oct 13, 2026 · The Okta RADIUS Agent

Check if you run it

No confirmed exploitation is on record for CVE-2026-78633. EPSS is 0.21%. Act only if a listed version of The Okta RADIUS Agent is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (The Okta RADIUS Agent).
  • No version range is stored. A customer cannot check an installed version against this record.
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Medium6.5
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.21%
Remediation
Advisory link
Affected products
See sources for product scope

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.

No affected version ranges are stored yet. Use the vendor advisory before you decide this record does not apply.

How to fix CVE-2026-78633

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-78633. EPSS is 0.21%. Act only if a listed version of The Okta RADIUS Agent is installed.

Which versions are affected?

Affected version ranges are not on this record. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-835: Infinite Loop. EPSS 0.21%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Oct 13, 2026 · Catalog

    Detected

    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.

Sources

  • CVE.orgVulnerability recordCVE-2026-78633

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-78633

    30-day exploitation probability 0.2%

    first.org
  • NIST NVDVulnerability recordCVE-2026-78633

    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.

    nvd.nist.gov

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.