CVE-2026-35408 Directus is Missing Cross-Origin Opener Policy
Attackers can intercept OAuth flows and hijack user accounts due to missing Cross-Origin-Opener-Policy headers in Directus SSO login pages.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-35408?
CVE-2026-35408 is a high-severity vulnerability in Monospace Directus, published on 6 Apr 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Directus is a real-time API and App dashboard for managing SQL database content. Prior to 11.17.0, Directus's Single Sign-On (SSO) login pages lacked a Cross-Origin-Opener-Policy (COOP) HTTP response header. Without this header, a malicious cross-origin window that opens the Directus login page retains the ability to access and manipulate the window object of that page. An attacker can exploit this to intercept and redirect the OAuth authorization flow to an attacker-controlled OAuth client, causing the victim to unknowingly grant access to their authentication provider account (e.g. Google, Discord). This vulnerability is fixed in 11.17.0.
Which versions are affected by CVE-2026-35408?
2 open source packages ship an affected version, including directus. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
directus npm | All versions | 11.17.0 |
directus npm | All versions | 11.17.0 |
Products include Monospace Directus.
How do I fix CVE-2026-35408?
Upgrade directus to 11.17.0 or later.
Is CVE-2026-35408 being exploited?
There is no known exploitation of CVE-2026-35408 in the wild and no public exploit code.
Other vulnerabilities in Monospace Directus
- CVE-2022-26969 Insecure default value for CORS configuration
- CVE-2025-55746 Directus allows unauthenticated file upload and file modification due to lacking input sanitization
- CVE-2026-61836 Directus: Authorization-dependent response served from unsegmented cache key
- CVE-2025-30353 Directus's webhook trigger flows can leak sensitive data
- CVE-2026-39942 Directus has a Path Traversal and Broken Access Control in File Management API
Sources
Also known as GHSA-8m32-p958-jg99.