GRR vulnerable to Remote Code Execution Via PHP Code Injection
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 sourcePublished 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"
}