CVE-2026-35408 directus CVE debrief

Who should care

Administrators and users of Directus, especially those using SSO for authentication, should be aware of this vulnerability. This vulnerability could allow attackers to intercept and redirect the OAuth authorization flow, potentially leading to unauthorized access to user accounts.

Technical summary

CVE-2026-35408 is a high-severity vulnerability in Directus's SSO login pages. The vulnerability has a CVSS score of 8.7 and is classified as CWE-346 and CWE-693. It was introduced due to the absence of the COOP header, which allows a malicious cross-origin window to access and manipulate the window object of the login page. This could lead to attackers intercepting and redirecting the OAuth authorization flow to an attacker-controlled OAuth client.

Defensive priority

High priority should be given to updating Directus to version 11.17.0 or later. Additionally, administrators should review their current security measures, such as monitoring for suspicious activity and ensuring that all users are aware of the potential risks.

Recommended defensive actions

• Update Directus to version 11.17.0 or later
• Review and implement additional security measures, such as monitoring for suspicious activity
• Educate users about the potential risks and importance of secure authentication practices
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up
• Review the supplied official advisory or CVE record to validate affected scope, severity, and vendor guidance
• Plan vendor-supported updates or mitigations through normal change control where exposure is confirmed
• Check relevant monitoring, detection, and logs for exposed assets that need extra review

Evidence notes

The CVE record was published on 2026-04-06T22:16:21.557Z and last modified on 2026-07-24T21:10:00.143Z. The NVD entry is currently Analyzed. The vulnerability is fixed in Directus version 11.17.0. Evidence from the CVE record and NVD entry indicates that Directus versions prior to 11.17.0 are affected. Defenders should verify the version of Directus in use and confirm whether affected product deployments exist in managed environments.

Sources and references

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.