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Security advisory

Type: advisorySources: OSVCVE: CVE-2026-57288

Jenkins Active Directory Plugin 2.41.1 and earlier does not escape the user name before building the LDAP search filter in the Windows native (ADSI) authentication path, allowing unauthenticated attackers to inject LDAP wildcard characters to enumerate directory entries and to authenticate as a matching user whose password they know without knowing their exact user name.

Products
Not specified
Affected versions
Not specified
Fixed versions
Not specified
CVEs
CVE-2026-57288
Confirmed fixed CVEs
Not specified
Updated in this feed
1 Nov 2026, 17:11 UTC · Revision 1

Source evidence

CVE-2026-57288

core-osv · Original source

Published 24 Jun 2026, 14:17 UTC

Jenkins Active Directory Plugin 2.41.1 and earlier does not escape the user name before building the LDAP search filter in the Windows native (ADSI) authentication path, allowing unauthenticated attackers to inject LDAP wildcard characters to enumerate directory entries and to authenticate as a matching user whose password they know without knowing their exact user name.

osv:CVE-2026-57288
Complete source record
{
  "id": "5936f44641cbc1cd721e1eee1d0c89991def1de9f4e7c3c3dca9c9f394d3769c",
  "url": "https://osv.dev/vulnerability/CVE-2026-57288",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2026-57288",
    "summary": "Jenkins Active Directory Plugin 2.41.1 and earlier does not escape the user name before building the LDAP search filter in the Windows native (ADSI) authentication path, allowing unauthenticated attackers to inject LDAP wildcard characters to enumerate directory entries and to authenticate as a matching user whose password they know without knowing their exact user name.",
    "evidence": "osv:CVE-2026-57288",
    "products": [],
    "severity": "low",
    "structured": {
      "id": "CVE-2026-57288",
      "aliases": [
        "CVE-2026-57288",
        "GHSA-gx55-p8g7-p3fh"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/jenkinsci/active-directory-plugin",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "c55faf91150fe93f60309e873132304d3d226d79"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:jenkins:active_directory:*:*:*:*:*:jenkins:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "2.41.2"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "active-directory-2.41.1",
            "active-directory-2.41",
            "active-directory-2.40",
            "active-directory-2.39",
            "active-directory-2.38",
            "active-directory-2.37",
            "active-directory-2.36",
            "active-directory-2.35",
            "active-directory-2.34",
            "active-directory-2.33",
            "active-directory-2.31",
            "active-directory-2.30",
            "active-directory-2.29",
            "active-directory-2.28",
            "active-directory-2.27",
            "active-directory-2.26",
            "active-directory-2.25",
            "active-directory-2.24",
            "active-directory-2.23",
            "active-directory-2.22",
            "active-directory-2.21",
            "active-directory-2.20",
            "active-directory-2.19",
            "active-directory-2.18",
            "active-directory-2.17",
            "active-directory-2.16",
            "active-directory-2.15",
            "active-directory-2.14",
            "active-directory-2.13",
            "active-directory-2.12",
            "active-directory-2.11",
            "active-directory-2.10",
            "active-directory-2.9",
            "active-directory-2.8",
            "active-directory-2.7",
            "active-directory-2.6",
            "active-directory-2.5",
            "active-directory-2.4",
            "active-directory-2.3",
            "active-directory-2.2",
            "active-directory-2.1",
            "active-directory-2.0",
            "active-directory-1.49",
            "active-directory-1.48",
            "active-directory-1.47",
            "active-directory-1.46",
            "active-directory-1.45",
            "active-directory-1.44",
            "active-directory-1.43",
            "active-directory-1.42",
            "active-directory-1.41",
            "active-directory-1.40",
            "active-directory-1.39",
            "active-directory-1.38",
            "active-directory-1.37",
            "active-directory-1.36",
            "active-directory-1.35",
            "active-directory-1.34",
            "active-directory-1.33",
            "active-directory-1.32",
            "active-directory-1.31",
            "active-directory-1.30",
            "active-directory-1.29",
            "active-directory-1.28",
            "active-directory-1.27",
            "active-directory-1.26",
            "active-directory-1.25",
            "active-directory-1.24",
            "active-directory-1.23",
            "active-directory-1.22",
            "active-directory-1.21",
            "active-directory-1.20",
            "active-directory-1.19"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-57288.json"
          }
        }
      ],
      "modified": "2026-10-27T02:30:24.764126809Z",
      "provider": "osv",
      "references": [
        "https://www.jenkins.io/security/advisory/2026-06-24/#SECURITY-3651"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2026-57288",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 460013,
  "published_at": "2026-06-24T14:17:35.03+00:00"
}