CVE-2026-73162 cti-transmute CSRF Allows Unauthorized Follow and Notification State Changes

Medium 5.3 Published Updated

Attackers can force authenticated users to change follow status or notification states via CSRF, requiring a patch to enforce POST/DELETE methods.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2026-73162?

CVE-2026-73162 is a medium-severity vulnerability in MISP cti-transmute, published on 11 Aug 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

Affected versions of MISP cti-transmute expose several state-changing account operations as GET requests:

* /account/follow

* /account/delete_notification

* /account/mark_notification_read

* /account/mark_all_read

These endpoints require authentication, but before the fix they could be invoked with simple GET requests. That makes them susceptible to cross-site request forgery because a third-party site can induce the victim’s browser to send authenticated GET requests automatically.

The patch converts the actions to POST or DELETE and updates the frontend to include an X-CSRFToken header, providing explicit CSRF protection for those state-changing operations.

Weakness: CWE-352

Which versions are affected by CVE-2026-73162?

How do I fix CVE-2026-73162?

No fix has been published for CVE-2026-73162 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-73162 being exploited?

There is no known exploitation of CVE-2026-73162 in the wild and no public exploit code.

Sources

Also known as GHSA-75j5-9v4m-c666.

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