# CVE-2026-78629: Improper Authentication Verification in the Okta Hyperdrive Agent MFA Response Handling

> CVE-2026-78629: Improper Authentication Verification in the Okta Hyperdrive Agent MFA Response Handling. CVSS 5.6 (CVSS 3.1).

Canonical: https://rewindex.com/cve/CVE-2026-78629
Last updated: 2026-09-22T20:06:42Z

- Published: 2026-09-08 20:14 UTC · Updated: 2026-09-22 20:06 UTC · Assigner: Okta
- CVSS: 5.6 (CVSS 3.1) · Severity: Medium · Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:N/I:H/A:N
- EPSS: 0.14%, 3th percentile (scored 2026-10-25)
- CISA KEV: no
- CWE: CWE-303

## Description

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.

## Affected vendors and products

- Okta: Okta Hyperdrive Agent

## Tracked companies

- [Okta](https://rewindex.com/company/okta.md)

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2026-78629)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2026-78629)
- [https://trust.okta.com/security-advisories/improper-authentication-verification-in-the-okta-hyperdrive-agent-mfa-response-handling-cve-2026-78629](https://trust.okta.com/security-advisories/improper-authentication-verification-in-the-okta-hyperdrive-agent-mfa-response-handling-cve-2026-78629)

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_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


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Canonical: https://rewindex.com/cve/CVE-2026-78629 · Markdown: https://rewindex.com/cve/CVE-2026-78629.md · JSON: https://rewindex.com/api/v1/cves/CVE-2026-78629 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T02:06:22.029Z