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activemq — security advisory

Type: advisorySources: OSVAdvisory ID: UBUNTU-CVE-2026-41043

Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS) vulnerability in Apache ActiveMQ, Apache ActiveMQ Web. An authenticated attacker can show malicious content when browsing queues in the web console by overriding the content type to be HTML (instead of XML) and by injecting HTML into a JMS selector field. This issue affects Apache ActiveMQ: before 5.19.6, from 6.0.0 before 6.2.5; Apache ActiveMQ Web: before 5.19.6, from 6.0.0 before 6.2.5. Users are recommended to upgrade to version 6.2.5 or 5.19.6, which fixes the issue.

Products
activemq
Affected versions
5.13.2+dfsg-2, 5.13.2+dfsg-2ubuntu0.1~esm1, 5.14.5-3, 5.15.10-1, 5.15.11-1, 5.15.11-1ubuntu0.1~esm1, 5.15.2-2, 5.15.3-2, 5.15.8-2~18.04, 5.15.8-2~18.04.1~esm1, 5.16.1-1, 5.16.1-1ubuntu0.1, 5.16.1-1ubuntu0.1~esm1, 5.17.2+dfsg-2, 5.17.6+dfsg-1, 5.17.6+dfsg-2, 5.17.6+dfsg-2ubuntu1, 5.6.0+dfsg1-4+deb8u1ubuntu1, 5.6.0+dfsg1-5
Fixed versions
Not specified
CVEs
CVE-2026-41043
Confirmed fixed CVEs
Not specified
Updated in this feed
31 Oct 2026, 00:25 UTC · Revision 1

Source evidence

UBUNTU-CVE-2026-41043

core-osv · Original source

Published 24 Apr 2026, 11:16 UTC

Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS) vulnerability in Apache ActiveMQ, Apache ActiveMQ Web. An authenticated attacker can show malicious content when browsing queues in the web console by overriding the content type to be HTML (instead of XML) and by injecting HTML into a JMS selector field. This issue affects Apache ActiveMQ: before 5.19.6, from 6.0.0 before 6.2.5; Apache ActiveMQ Web: before 5.19.6, from 6.0.0 before 6.2.5. Users are recommended to upgrade to version 6.2.5 or 5.19.6, which fixes the issue.

osv:UBUNTU-CVE-2026-41043

activemq

Fixed versions: Not specified

activemq

Fixed versions: Not specified

activemq

Fixed versions: Not specified

activemq

Fixed versions: Not specified

activemq

Fixed versions: Not specified

activemq

Fixed versions: Not specified

activemq

Fixed versions: Not specified

activemq

Fixed versions: Not specified

Complete source record
{
  "id": "29aae445e9959a8eb2454b21cbf85947b0549cd5ce452204ce2ad62522fce6df",
  "url": "https://osv.dev/vulnerability/UBUNTU-CVE-2026-41043",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "UBUNTU-CVE-2026-41043",
    "summary": "Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS) vulnerability in Apache ActiveMQ, Apache ActiveMQ Web. An authenticated attacker can show malicious content when browsing queues in the web console by overriding the content type to be HTML (instead of XML) and by injecting HTML into a JMS selector field. This issue affects Apache ActiveMQ: before 5.19.6, from 6.0.0 before 6.2.5; Apache ActiveMQ Web: before 5.19.6, from 6.0.0 before 6.2.5. Users are recommended to upgrade to version 6.2.5 or 5.19.6, which fixes the issue.",
    "evidence": "osv:UBUNTU-CVE-2026-41043",
    "products": [
      {
        "name": {
          "value": "activemq",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "5.6.0+dfsg1-4+deb8u1ubuntu1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "5.6.0+dfsg1-5",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "5.13.2+dfsg-2",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "5.13.2+dfsg-2ubuntu0.1~esm1",
            "evidence": "/affected/0/versions"
          }
        ]
      },
      {
        "name": {
          "value": "activemq",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "5.14.5-3",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "5.15.2-2",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "5.15.3-2",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "5.15.8-2~18.04",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "5.15.8-2~18.04.1~esm1",
            "evidence": "/affected/1/versions"
          }
        ]
      },
      {
        "name": {
          "value": "activemq",
          "evidence": "/affected/2/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "5.15.10-1",
            "evidence": "/affected/2/versions"
          },
          {
            "value": "5.15.11-1",
            "evidence": "/affected/2/versions"
          },
          {
            "value": "5.15.11-1ubuntu0.1~esm1",
            "evidence": "/affected/2/versions"
          }
        ]
      },
      {
        "name": {
          "value": "activemq",
          "evidence": "/affected/3/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "5.16.1-1",
            "evidence": "/affected/3/versions"
          },
          {
            "value": "5.16.1-1ubuntu0.1~esm1",
            "evidence": "/affected/3/versions"
          },
          {
            "value": "5.16.1-1ubuntu0.1",
            "evidence": "/affected/3/versions"
          }
        ]
      },
      {
        "name": {
          "value": "activemq",
          "evidence": "/affected/4/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "5.17.2+dfsg-2",
            "evidence": "/affected/4/versions"
          },
          {
            "value": "5.17.6+dfsg-1",
            "evidence": "/affected/4/versions"
          }
        ]
      },
      {
        "name": {
          "value": "activemq",
          "evidence": "/affected/5/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "5.17.6+dfsg-1",
            "evidence": "/affected/5/versions"
          },
          {
            "value": "5.17.6+dfsg-2",
            "evidence": "/affected/5/versions"
          }
        ]
      },
      {
        "name": {
          "value": "activemq",
          "evidence": "/affected/6/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "5.17.6+dfsg-2",
            "evidence": "/affected/6/versions"
          },
          {
            "value": "5.17.6+dfsg-2ubuntu1",
            "evidence": "/affected/6/versions"
          }
        ]
      },
      {
        "name": {
          "value": "activemq",
          "evidence": "/affected/7/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "5.17.6+dfsg-2",
            "evidence": "/affected/7/versions"
          }
        ]
      }
    ],
    "severity": "medium",
    "structured": {
      "id": "UBUNTU-CVE-2026-41043",
      "aliases": [
        "UBUNTU-CVE-2026-41043"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N"
        },
        {
          "type": "Ubuntu",
          "score": "medium"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                }
              ]
            }
          ],
          "package": {
            "name": "activemq",
            "purl": "pkg:deb/ubuntu/activemq?arch=source&distro=esm-apps%2Fxenial",
            "ecosystem": "Ubuntu:Pro:16.04:LTS"
          },
          "versions": [
            "5.6.0+dfsg1-4+deb8u1ubuntu1",
            "5.6.0+dfsg1-5",
            "5.13.2+dfsg-2",
            "5.13.2+dfsg-2ubuntu0.1~esm1"
          ],
          "database_specific": {
            "source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-41043.json"
          },
          "ecosystem_specific": {
            "binaries": [
              {
                "binary_name": "activemq",
                "binary_version": "5.13.2+dfsg-2ubuntu0.1~esm1"
              },
              {
                "binary_name": "libactivemq-java",
                "binary_version": "5.13.2+dfsg-2ubuntu0.1~esm1"
              }
            ]
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                }
              ]
            }
          ],
          "package": {
            "name": "activemq",
            "purl": "pkg:deb/ubuntu/activemq?arch=source&distro=esm-apps%2Fbionic",
            "ecosystem": "Ubuntu:Pro:18.04:LTS"
          },
          "versions": [
            "5.14.5-3",
            "5.15.2-2",
            "5.15.3-2",
            "5.15.8-2~18.04",
            "5.15.8-2~18.04.1~esm1"
          ],
          "database_specific": {
            "source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-41043.json"
          },
          "ecosystem_specific": {
            "binaries": [
              {
                "binary_name": "activemq",
                "binary_version": "5.15.8-2~18.04.1~esm1"
              },
              {
                "binary_name": "libactivemq-java",
                "binary_version": "5.15.8-2~18.04.1~esm1"
              }
            ]
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                }
              ]
            }
          ],
          "package": {
            "name": "activemq",
            "purl": "pkg:deb/ubuntu/activemq?arch=source&distro=esm-apps%2Ffocal",
            "ecosystem": "Ubuntu:Pro:20.04:LTS"
          },
          "versions": [
            "5.15.10-1",
            "5.15.11-1",
            "5.15.11-1ubuntu0.1~esm1"
          ],
          "database_specific": {
            "source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-41043.json"
          },
          "ecosystem_specific": {
            "binaries": [
              {
                "binary_name": "activemq",
                "binary_version": "5.15.11-1ubuntu0.1~esm1"
              },
              {
                "binary_name": "libactivemq-java",
                "binary_version": "5.15.11-1ubuntu0.1~esm1"
              }
            ]
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                }
              ]
            }
          ],
          "package": {
            "name": "activemq",
            "purl": "pkg:deb/ubuntu/activemq?arch=source&distro=esm-apps%2Fjammy",
            "ecosystem": "Ubuntu:Pro:22.04:LTS"
          },
          "versions": [
            "5.16.1-1",
            "5.16.1-1ubuntu0.1~esm1",
            "5.16.1-1ubuntu0.1"
          ],
          "database_specific": {
            "source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-41043.json"
          },
          "ecosystem_specific": {
            "binaries": [
              {
                "binary_name": "activemq",
                "binary_version": "5.16.1-1ubuntu0.1"
              },
              {
                "binary_name": "libactivemq-java",
                "binary_version": "5.16.1-1ubuntu0.1"
              }
            ]
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                }
              ]
            }
          ],
          "package": {
            "name": "activemq",
            "purl": "pkg:deb/ubuntu/activemq?arch=source&distro=noble",
            "ecosystem": "Ubuntu:24.04:LTS"
          },
          "versions": [
            "5.17.2+dfsg-2",
            "5.17.6+dfsg-1"
          ],
          "database_specific": {
            "source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-41043.json"
          },
          "ecosystem_specific": {
            "binaries": [
              {
                "binary_name": "activemq",
                "binary_version": "5.17.6+dfsg-1"
              },
              {
                "binary_name": "libactivemq-java",
                "binary_version": "5.17.6+dfsg-1"
              }
            ]
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                }
              ]
            }
          ],
          "package": {
            "name": "activemq",
            "purl": "pkg:deb/ubuntu/activemq?arch=source&distro=questing",
            "ecosystem": "Ubuntu:25.10"
          },
          "versions": [
            "5.17.6+dfsg-1",
            "5.17.6+dfsg-2"
          ],
          "database_specific": {
            "source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-41043.json"
          },
          "ecosystem_specific": {
            "binaries": [
              {
                "binary_name": "activemq",
                "binary_version": "5.17.6+dfsg-2"
              },
              {
                "binary_name": "libactivemq-java",
                "binary_version": "5.17.6+dfsg-2"
              }
            ]
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                }
              ]
            }
          ],
          "package": {
            "name": "activemq",
            "purl": "pkg:deb/ubuntu/activemq?arch=source&distro=stonking",
            "ecosystem": "Ubuntu:26.10"
          },
          "versions": [
            "5.17.6+dfsg-2",
            "5.17.6+dfsg-2ubuntu1"
          ],
          "database_specific": {
            "source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-41043.json"
          },
          "ecosystem_specific": {
            "binaries": [
              {
                "binary_name": "activemq",
                "binary_version": "5.17.6+dfsg-2ubuntu1"
              },
              {
                "binary_name": "libactivemq-java",
                "binary_version": "5.17.6+dfsg-2ubuntu1"
              }
            ]
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                }
              ]
            }
          ],
          "package": {
            "name": "activemq",
            "purl": "pkg:deb/ubuntu/activemq?arch=source&distro=resolute",
            "ecosystem": "Ubuntu:26.04:LTS"
          },
          "versions": [
            "5.17.6+dfsg-2"
          ],
          "database_specific": {
            "source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-41043.json"
          },
          "ecosystem_specific": {
            "binaries": [
              {
                "binary_name": "activemq",
                "binary_version": "5.17.6+dfsg-2"
              },
              {
                "binary_name": "libactivemq-java",
                "binary_version": "5.17.6+dfsg-2"
              }
            ]
          }
        }
      ],
      "modified": "2026-10-17T12:54:54.208205241Z",
      "provider": "osv",
      "upstream": [
        "CVE-2026-41043"
      ],
      "references": [
        "https://ubuntu.com/security/CVE-2026-41043",
        "https://www.cve.org/CVERecord?id=CVE-2026-41043",
        "https://www.openwall.com/lists/oss-security/2026/04/23/5"
      ]
    },
    "related_cves": [
      {
        "value": "CVE-2026-41043",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 353587,
  "published_at": "2026-04-24T11:16:00+00:00"
}