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Critical

GRR vulnerable to Remote Code Execution Via PHP Code Injection

Type: advisorySources: Official CVE List

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.

Products
GRR
Affected versions
Not specified
Fixed versions
Not specified
CVEs
CVE-2026-58256
Confirmed fixed CVEs
Not specified
Updated in this feed
31 Oct 2026, 16:33 UTC · Revision 1

Source evidence

GRR vulnerable to Remote Code Execution Via PHP Code Injection

core-cve · Original source

Published 27 Oct 2026, 22:32 UTC

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.

cve:CVE-2026-58256

GRR

Fixed versions: Not specified

Complete source record
{
  "id": "c0f9c67e8025f6ef03597cbf839439f67ba6b0c59d39a2f3fc6816f5fd3e201a",
  "url": "https://www.cve.org/CVERecord?id=CVE-2026-58256",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "GRR vulnerable to Remote Code Execution Via PHP Code Injection",
    "summary": "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.",
    "evidence": "cve:CVE-2026-58256",
    "products": [
      {
        "name": {
          "value": "GRR",
          "evidence": "/containers/cna/affected/0/product"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": []
      }
    ],
    "severity": "critical",
    "structured": {
      "id": "CVE-2026-58256",
      "aliases": [
        "CVE-2026-58256"
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "scope": "CHANGED",
            "version": "3.1",
            "baseScore": 9.1,
            "attackVector": "NETWORK",
            "baseSeverity": "CRITICAL",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H",
            "integrityImpact": "HIGH",
            "userInteraction": "NONE",
            "attackComplexity": "LOW",
            "availabilityImpact": "HIGH",
            "privilegesRequired": "HIGH",
            "confidentialityImpact": "HIGH"
          }
        }
      ],
      "affected": [
        {
          "vendor": "JeromeDevome",
          "product": "GRR",
          "versions": [
            {
              "status": "affected",
              "version": "< 4.5.0"
            }
          ]
        }
      ],
      "modified": "2026-10-27T22:32:12.589Z",
      "provider": "cve",
      "references": [
        "https://github.com/JeromeDevome/GRR/security/advisories/GHSA-fp4f-xmw6-5jf8",
        "https://github.com/JeromeDevome/GRR/commit/3ff9504ae557da1e8e208149acbf8c7f04de645f",
        "https://github.com/JeromeDevome/GRR/tree/v4.5.0"
      ],
      "provider_metadata": {
        "cna": {
          "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
          "shortName": "GitHub_M",
          "dateUpdated": "2026-10-27T22:32:12.589Z"
        }
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-58256",
        "evidence": "/cveMetadata/cveId"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/containers/cna/metrics"
  },
  "source_id": "core-cve",
  "document_id": 400745,
  "published_at": "2026-10-27T22:32:12.589+00:00"
}