CVE-2026-90934

MEDIUMCVSS 4.3/10

Last modified

CVE-2026-90934 is a medium-severity vulnerability rated 4.3/10 on the CVSS scale. 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..

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.

Metrics

Weakness Enumeration

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
espocrmespocrm< 10.0.4

References

Timeline

Published
Last Modified
Status
Received

Frequently Asked Questions

What is CVE-2026-90934?
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.
How severe is CVE-2026-90934?
CVE-2026-90934 has a CVSS score of 4.3/10 (MEDIUM severity).
How do I fix CVE-2026-90934?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST