CVE-2026-10854 Unauthorized exposure of private galaxies in MISP event template creation
Non-admin users can view private galaxy metadata from other organizations due to missing access controls in the event template builder.
- 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-2026-10854?
CVE-2026-10854 is a medium-severity missing authorization vulnerability in Misp-Project Misp, published on 4 Jun 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A visibility control issue in the event template creation workflow allowed non-site-admin users to access private galaxies belonging to other organisations. The event template builder loaded all enabled galaxies without applying organisation or distribution-based access restrictions, potentially exposing private galaxy metadata such as galaxy type and description to users who should not have visibility.
The issue has been fixed by restricting galaxy queries for non-site-admin users to galaxies owned by the user’s organisation or galaxies with a non-private distribution setting. Site administrators retain visibility of all enabled galaxies.
Weakness: CWE-200
Which versions are affected by CVE-2026-10854?
It affects 1 product.
Products include Misp-Project Misp.
How do I fix CVE-2026-10854?
No fix has been published for CVE-2026-10854 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-2026-10854 being exploited?
There is no known exploitation of CVE-2026-10854 in the wild and no public exploit code.
Other vulnerabilities in Misp-Project Misp
Sources
Also known as GHSA-3636-3mqq-q7x9.