Information disclosure in Espocrm
CVE-2026-109959
EspoCRM 4.0.0 before 10.0.7 contains an access control vulnerability that allows authenticated users to read audited field values restricted by field-level security by fetching individual stream notes. Users with stream access to a parent record can request GET /Note/{id}, which skips the NoteAccessControl filter, and recover data.attributes.was and became values of restricted fields.
Vulnerability class: Information Disclosure
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- github.com/espocrm/espocrm/security/advisories/GHSA-mr36-xx82-qf6h (vendor-advisory)
- www.vulncheck.com/advisories/espocrm-4.0.0-before-10.0.7-field-level-security-b… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-109959?
- CVE-2026-109959 is a medium-severity vulnerability in Espocrm, classified under Information Disclosure. CVSS score: 4.3/10. Published 2026-10-13.
- How severe is CVE-2026-109959?
- Medium severity. CVSS v3 base score is 4.3 out of 10.