CVE-2026-78629 PUBLISHED

Improper Authentication Verification in the Okta Hyperdrive Agent MFA Response Handling

Assigner: Okta
Reserved: 24.08.2026 Published: 08.09.2026 Updated: 08.09.2026

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.

Metrics

CVSS 3.1

CVSS Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:N/I:H/A:N
CVSS Score: 5.6

Attack Vector	Local	Scope	Changed
Attack Complexity	High	Confidentiality Impact	None
Privileges Required	Low	Integrity Impact	High
User Interaction	None	Availability Impact	None

CVSS 3.1

Product Status

Vendor	Okta
Product	Okta Hyperdrive Agent
Versions	Default: unaffected affected from 1.2.0 to 1.5.2 (excl.)

Solutions

Upgrade the Okta Hyperdrive agent to version 1.5.2 or greater.

References

https://trust.okta.com/security-advisories/improper-authentication-verification-in-the-okta-hyperdrive-agent-mfa-response-handling-cve-2026-78629

Problem Types

Incorrect Implementation of Authentication Algorithm