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adminer — security advisory

Type: advisorySources: OSVAdvisory ID: DEBIAN-CVE-2026-15686

Adminer multi_query Incorrect Check of Function Return Value Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Adminer. Authentication is required to exploit this vulnerability. The specific flaw exists within the multi_query method. The issue results from an incorrect check of a function return value. An attacker can leverage this vulnerability to execute code in the context of the web server. Was ZDI-CAN-28201.

Products
adminer
Affected versions
4.8.1-1, 4.8.1-2, 4.8.1-4, 5.1.0-1, 5.2.1+dfsg-1, 5.3.0+dfsg-1, 5.4.0+dfsg-1, 5.4.1+dfsg-1, 5.4.2+dfsg-1, 5.4.3+dfsg-1, 5.4.4+dfsg-1, 6.0.0-1, 6.0.1-1, 6.0.2-1, 6.1.0-1, 6.1.1-1, 6.1.2-1
Fixed versions
5.4.3+dfsg-1
CVEs
CVE-2026-15686
Confirmed fixed CVEs
Not specified
Updated in this feed
1 Nov 2026, 17:49 UTC · Revision 2

Source evidence

DEBIAN-CVE-2026-15686

core-osv · Original source

Published 20 Aug 2026, 17:17 UTC

Adminer multi_query Incorrect Check of Function Return Value Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Adminer. Authentication is required to exploit this vulnerability. The specific flaw exists within the multi_query method. The issue results from an incorrect check of a function return value. An attacker can leverage this vulnerability to execute code in the context of the web server. Was ZDI-CAN-28201.

osv:DEBIAN-CVE-2026-15686

adminer

Fixed versions: Not specified

adminer

Fixed versions: Not specified

adminer

Fixed versions: 5.4.3+dfsg-1

Complete source record
{
  "id": "ac5543ad478d780951506d50f9156ec8dd3cc69c5b1374e8857675e3c4853f6a",
  "url": "https://osv.dev/vulnerability/DEBIAN-CVE-2026-15686",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "DEBIAN-CVE-2026-15686",
    "summary": "Adminer multi_query Incorrect Check of Function Return Value Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Adminer. Authentication is required to exploit this vulnerability. The specific flaw exists within the multi_query method. The issue results from an incorrect check of a function return value. An attacker can leverage this vulnerability to execute code in the context of the web server. Was ZDI-CAN-28201.",
    "evidence": "osv:DEBIAN-CVE-2026-15686",
    "products": [
      {
        "name": {
          "value": "adminer",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "4.8.1-1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "4.8.1-2",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "4.8.1-4",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "5.1.0-1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "5.2.1+dfsg-1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "5.3.0+dfsg-1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "5.4.0+dfsg-1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "5.4.1+dfsg-1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "5.4.2+dfsg-1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "5.4.3+dfsg-1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "5.4.4+dfsg-1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "6.0.0-1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "6.0.1-1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "6.0.2-1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "6.1.0-1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "6.1.1-1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "6.1.2-1",
            "evidence": "/affected/0/versions"
          }
        ]
      },
      {
        "name": {
          "value": "adminer",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "5.2.1+dfsg-1",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "5.3.0+dfsg-1",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "5.4.0+dfsg-1",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "5.4.1+dfsg-1",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "5.4.2+dfsg-1",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "5.4.3+dfsg-1",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "5.4.4+dfsg-1",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "6.0.0-1",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "6.0.1-1",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "6.0.2-1",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "6.1.0-1",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "6.1.1-1",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "6.1.2-1",
            "evidence": "/affected/1/versions"
          }
        ]
      },
      {
        "name": {
          "value": "adminer",
          "evidence": "/affected/2/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "5.4.3+dfsg-1",
            "evidence": "/affected/2/ranges"
          }
        ],
        "affected_versions": [
          {
            "value": "5.2.1+dfsg-1",
            "evidence": "/affected/2/versions"
          },
          {
            "value": "5.3.0+dfsg-1",
            "evidence": "/affected/2/versions"
          },
          {
            "value": "5.4.0+dfsg-1",
            "evidence": "/affected/2/versions"
          },
          {
            "value": "5.4.1+dfsg-1",
            "evidence": "/affected/2/versions"
          },
          {
            "value": "5.4.2+dfsg-1",
            "evidence": "/affected/2/versions"
          }
        ]
      }
    ],
    "severity": "high",
    "structured": {
      "id": "DEBIAN-CVE-2026-15686",
      "aliases": [
        "DEBIAN-CVE-2026-15686"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                }
              ]
            }
          ],
          "package": {
            "name": "adminer",
            "purl": "pkg:deb/debian/adminer?arch=source&distro=bookworm",
            "ecosystem": "Debian:12"
          },
          "versions": [
            "4.8.1-1",
            "4.8.1-2",
            "4.8.1-4",
            "5.1.0-1",
            "5.2.1+dfsg-1",
            "5.3.0+dfsg-1",
            "5.4.0+dfsg-1",
            "5.4.1+dfsg-1",
            "5.4.2+dfsg-1",
            "5.4.3+dfsg-1",
            "5.4.4+dfsg-1",
            "6.0.0-1",
            "6.0.1-1",
            "6.0.2-1",
            "6.1.0-1",
            "6.1.1-1",
            "6.1.2-1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-15686.json"
          },
          "ecosystem_specific": {
            "urgency": "not yet assigned"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                }
              ]
            }
          ],
          "package": {
            "name": "adminer",
            "purl": "pkg:deb/debian/adminer?arch=source&distro=trixie",
            "ecosystem": "Debian:13"
          },
          "versions": [
            "5.2.1+dfsg-1",
            "5.3.0+dfsg-1",
            "5.4.0+dfsg-1",
            "5.4.1+dfsg-1",
            "5.4.2+dfsg-1",
            "5.4.3+dfsg-1",
            "5.4.4+dfsg-1",
            "6.0.0-1",
            "6.0.1-1",
            "6.0.2-1",
            "6.1.0-1",
            "6.1.1-1",
            "6.1.2-1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-15686.json"
          },
          "ecosystem_specific": {
            "urgency": "not yet assigned"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "5.4.3+dfsg-1"
                }
              ]
            }
          ],
          "package": {
            "name": "adminer",
            "purl": "pkg:deb/debian/adminer?arch=source&distro=forky",
            "ecosystem": "Debian:14"
          },
          "versions": [
            "5.2.1+dfsg-1",
            "5.3.0+dfsg-1",
            "5.4.0+dfsg-1",
            "5.4.1+dfsg-1",
            "5.4.2+dfsg-1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-15686.json"
          },
          "ecosystem_specific": {
            "urgency": "not yet assigned"
          }
        }
      ],
      "modified": "2026-10-27T10:00:49.530452358Z",
      "provider": "osv",
      "upstream": [
        "CVE-2026-15686"
      ],
      "references": [
        "https://security-tracker.debian.org/tracker/CVE-2026-15686"
      ]
    },
    "related_cves": [
      {
        "value": "CVE-2026-15686",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 461329,
  "published_at": "2026-08-20T17:17:21.18+00:00"
}