עברית

Vulnerability Intelligence

CVE-2026-58256

Critical 9.1

Published
Last modified
NVD status
Deferred

Description

GRR is a resource management and reservation application. Prior to the advisory-reported fixed version 4.5.0, an administrator can inject malicious PHP through LDAP connector configuration parameters such as `ldap_filter`, poisoning `/personnalisation/config_ldap.inc.php` and permitting remote code execution. The administrator must first successfully connect to an LDAP server, which can be attacker-controlled, and then submit malicious input on the subsequent connector settings page. The advisory reports this issue as fixed in version 4.5.0.

References3

Metrics

CVSS 3.1
9.1 CRITICAL Score source: CNA CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
EPSS — exploit probability
1% percentile: 47 · as of 3 November 2026
CWE
CWE-94

Could this be exploited in your environment?

A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.