What is CVE-2026-78631?

CVE-2026-78631 is a medium-severity vulnerability in Okta Hyperdrive Agent, classified under Insertion of Sensitive Information into Log File. CVSS score: 5.3/10. Published 2026-09-08.

How severe is CVE-2026-78631?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Information disclosure in Okta Hyperdrive Agent

CVE-2026-78631

The Okta Hyperdrive Agent writes the decoded SAML bearer assertion to a local application log file at the default log level on every successful MFA completion. This insertion of sensitive information into the log file makes a live authentication credential readable by any local user with access to the log file.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:L/A:N.

Affected products

Okta Hyperdrive Agent

Weakness classification (CWE)

CWE-532 — Insertion of Sensitive Information into Log File

References

psirt@okta.com

Frequently asked questions

What is CVE-2026-78631?: CVE-2026-78631 is a medium-severity vulnerability in Okta Hyperdrive Agent, classified under Insertion of Sensitive Information into Log File. CVSS score: 5.3/10. Published 2026-09-08.
How severe is CVE-2026-78631?: Medium severity. CVSS v3 base score is 5.3 out of 10.