CVE-2026-90934 EspoCRM before 10.0.4 Field-level Security Bypass via Attendees
Authenticated users can bypass field-level security to read restricted attendee email addresses in EspoCRM meeting and call endpoints.
- 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-2026-90934?
CVE-2026-90934 is a high-severity missing authorization vulnerability in espocrm, published on 14 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
EspoCRM before 10.0.4 contains a field-level security bypass vulnerability in the meeting and call attendees endpoints that allows authenticated users to read restricted email addresses. Attackers can recover hidden attendee emails by exploiting incorrect ACL scope validation that checks parent event permissions instead of attendee entity permissions.
Weakness: CWE-863
Which versions are affected by CVE-2026-90934?
How do I fix CVE-2026-90934?
No fix has been published for CVE-2026-90934 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-2026-90934 being exploited?
There is no known exploitation of CVE-2026-90934 in the wild and no public exploit code.
Sources
Also known as GHSA-hpgx-8qg3-5w7v, GHSA-w9v2-8542-444h.