Vulnerability · Published Oct 13, 2026 · Assigned by VulnCheck

CVE-2026-109959EspoCRM 4.0.0 before 10.0.7 Field-Level Security Bypass via Note Read Endpoint

Medium 4.3

In plain English

A medium-severity information exposure in espocrm from espocrm. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 13% of all known vulnerabilities).

Severity (CVSS 3.1)4.3Medium

Exploit odds (30 days)0.2%top 87.0% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

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.

Affected products (as reported)

Vendor	Product	Versions
espocrm	espocrm	4.0.0 – before 10.0.7

Weakness: CWE-200 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

References

GitHub Security Advisory (GHSA-mr36-xx82-qf6h) vendor-advisory
VulnCheck Advisory: EspoCRM 4.0.0 before 10.0.7 Field-Level Security Bypass via Note Read Endpoint third-party-advisory