How severe is CVE-2026-35408?

CVE-2026-35408 has a CVSS 3.x base score of 8.7, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.

Is CVE-2026-35408 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (7th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-35408?

CVE-2026-35408 affects Monospace Directus. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-35408?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2026-35408 have an EU (EUVD) identifier?

Yes. CVE-2026-35408 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-19516.

When was CVE-2026-35408 published?

CVE-2026-35408 was published on 2026-04-06 and last updated on 2026-06-17.

CVE-2026-35408

CVE-2026-35408 is a high-severity vulnerability in Monospace Directus with a CVSS 3.x base score of 8.7. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-346.

Key facts

Severity: High (CVSS 3.x base score 8.7)
EPSS exploit prediction: 0% (7th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-19516
Weakness: CWE-346
Affected product: Monospace Directus
Published: 2026-04-06
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2026-35408?: 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.
How severe is CVE-2026-35408?: CVE-2026-35408 has a CVSS 3.x base score of 8.7, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.
Is CVE-2026-35408 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (7th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-35408?: CVE-2026-35408 affects Monospace Directus. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-35408?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-35408 have an EU (EUVD) identifier?: Yes. CVE-2026-35408 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-19516.
When was CVE-2026-35408 published?: CVE-2026-35408 was published on 2026-04-06 and last updated on 2026-06-17.

References

https://github.com/directus/directus/security/advisories/GHSA-8m32-p958-jg99

Affected products (1)

cpe:2.3:a:monospace:directus:*:*:*:*:*:node.js:*:*

More vulnerabilities in Monospace Directus

CVE-2022-26969 — Critical (CVSS 9.8): In Directus before 9.7.0, the default settings of CORS_ORIGIN and CORS_ENABLED are true.
CVE-2025-55746 — Critical (CVSS 9.3): Directus is a real-time API and App dashboard for managing SQL database content. From 10.8.0 to before 11.9.3, a…
CVE-2025-30353 — High (CVSS 8.6): Directus is a real-time API and App dashboard for managing SQL database content. Starting in version 9.12.0 and prior…
CVE-2026-39942 — High (CVSS 8.5): Directus is a real-time API and App dashboard for managing SQL database content. Prior to 11.17.0, the PATCH…
CVE-2024-27295 — High (CVSS 8.2): Directus is a real-time API and App dashboard for managing SQL database content. The password reset mechanism of the…
CVE-2026-35442 — High (CVSS 8.1): Directus is a real-time API and App dashboard for managing SQL database content. Prior to 11.17.0, aggregate functions…

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