Vulnerability · Published Oct 15, 2026 · Assigned by GitHub_M

CVE-2026-47168EspoCRM: Authenticated RCE via Unsafe PHP Object Deserialization in MassAction/Export params

Critical 9.1

In plain English

A critical-severity unsafe deserialization 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 0.4% (higher than 37% of all known vulnerabilities).

Severity (CVSS 3.1)9.1Critical

Exploit odds (30 days)0.4%top 63.2% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

EspoCRM is an open source customer relationship management application. Prior to 9.3.7, an authenticated administrator can supply crafted serialized PHP object data that is stored in background MassAction or Export parameters and later deserialized by the application. The deserialization paths do not restrict allowed classes, allowing attacker-controlled object instantiation and arbitrary code execution on the server. This issue is fixed in version 9.3.7.

Affected products (as reported)

Vendor	Product	Versions
espocrm	espocrm	< 9.3.7

Weakness: CWE-502 · Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

References

https://github.com/espocrm/espocrm/security/advisories/GHSA-7q78-jjr9-mqcg x_refsource_CONFIRM
https://github.com/espocrm/espocrm/commit/f48d1d26ffa05eac07ef72bb7f00f67a851184e1 x_refsource_MISC
https://github.com/espocrm/espocrm/releases/tag/9.3.7 x_refsource_MISC