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PatchSiren cyber security CVE debrief

CVE-2026-78624 Okta CVE debrief

The Okta Access Gateway backup restore function does not validate the filename embedded in an encrypted backup payload, allowing file contents to be written to unintended locations on the appliance filesystem. This medium-severity vulnerability, with a CVSS score of 4.9, was published on 2026-09-08 and last modified on 2026-09-22. The vulnerability affects Okta Access Gateway deployments, and defenders should verify the integrity of their backup and restore processes to prevent unauthorized file writes. The CVE record and NVD vulnerability detail page provide information on the vulnerability, including its description, CVSS score, and affected versions. Okta Access Gateway should

Vendor
Okta
Product
Access Gateway
CVSS
MEDIUM 4.9
CISA KEV
Not listed in stored evidence
Original CVE published
2026-09-08
Original CVE updated
2026-09-22
Advisory published
2026-09-08
Advisory updated
2026-09-22

Who should care

Okta Access Gateway administrators and security teams should assess exposure and prioritize verification of their backup and restore processes.

Why it matters

This medium-severity vulnerability in Okta Access Gateway allows file contents to be written to unintended locations on the appliance filesystem, requiring defenders to verify the integrity of their backup and restore processes and update configurations to align with security best practices.

  • Defenders must verify the integrity of their Okta Access Gateway backup and restore processes to prevent unauthorized file writes.
  • Security teams should review and update Okta Access Gateway configurations to align with security best practices.
  • Administrators must ensure that filenames are properly validated to prevent exploitation of this vulnerability.

Technical summary

The Okta Access Gateway backup restore function does not validate the filename embedded in an encrypted backup payload, allowing file contents to be written to unintended locations on the appliance filesystem. This vulnerability affects Okta Access Gateway deployments and requires defenders to verify the integrity of their backup and restore processes, ensuring that filenames are properly validated to prevent unauthorized file writes. The vulnerability has a CVSS score of 4.9 and was published on 2026-09-08.

Defensive priority

Defenders should prioritize verifying the integrity of their Okta Access Gateway backup and restore processes, ensuring that filenames are properly validated to prevent unauthorized file writes.

Recommended defensive actions

  • Verify the integrity of Okta Access Gateway backup and restore processes
  • Ensure that filenames are properly validated to prevent unauthorized file writes
  • Review and update Okta Access Gateway configurations to align with security best practices

Evidence notes

The CVE record and NVD vulnerability detail page provide information on the vulnerability, including its description, CVSS score, and affected versions.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-78624 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-78624

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-78624 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-78624

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

  • Source reference

    Unverified legacy reference

    URL: https://trust.okta.com/security-advisories/improper-path-validation-in-okta-access-gateway-backup-and-restore-functionality-cve-2026-78624

    [email protected] - Vendor Advisory

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.