CVE-2026-86441 MISP Dashboard Organisation Widgets Bypass Organisation-Index Restrictions and Expose Hidden Organisation Data
Authenticated users can bypass organisation visibility restrictions to enumerate hidden organisations and access sensitive data via dashboard widgets.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-86441?
CVE-2026-86441 is a low-severity missing authorization vulnerability in Misp-Project Misp, published on 7 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Affected versions of MISP contain inconsistent authorization checks across dashboard widgets that display organisation information.
Several organisation-related widgets did not honor Security.hide_organisation_index_from_users. As a result, authenticated users without the perm_sharing_group permission could enumerate organisations even though the normal organisation index was intentionally hidden from them.
The affected widgets included paths that:
* returned organisation names and identifiers;
* could expose additional organisation database fields through JSON export because unrestricted find('all') queries fetched full rows;
* accepted limit=0 or negative values in a way that could effectively remove the result limit and return the entire organisation table.
A related organisation-contributor leaderboard also ignored the same visibility setting. Its handler counted Event.orgc_id across the entire event table and mapped those IDs to organisation names, revealing every organisation with events regardless of whether the caller could see any of those events. The fix withdraws this widget entirely for users who lack organisation-index visibility.
Version affected: ≤2.5.45
Which versions are affected by CVE-2026-86441?
It affects 1 product.
Products include Misp-Project Misp.
How do I fix CVE-2026-86441?
No fix has been published for CVE-2026-86441 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-86441 being exploited?
There is no known exploitation of CVE-2026-86441 in the wild and no public exploit code.
Other vulnerabilities in Misp-Project Misp
Sources
Also known as GHSA-6x2c-442p-85rw.