CVE catalog

CVE-2025-54813

log4cxx affected and fixed versions

Improper Output Neutralization for Logs vulnerability in Apache Log4cxx. When using JSONLayout, not all payload bytes are properly escaped. If an attacker-supplied message contains certain non-printable characters, these will be passed along in the message and written out as part of the JSON message. This may prevent applications that consume these logs from correctly interpreting the information within them. This issue affects Apache Log4cxx: before 1.5.0. Users are recommended to upgrade to version 1.5.0, which fixes the issue.

Severity: Medium · CVSS 5.3CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Published: Aug 22, 2025, 6:45:42 PM UTC
Source: [NVD] · [CVE record]
EPSS: 1.35% · Oct 27, 2026

Projects and upstream resources

[log4cxx][Source-reported homepage]

Reported versions and fixes

Each observation applies to its named package, distribution, and release. Distribution backports can fix a vulnerability while retaining an older upstream version number.

Version impact has not been established. The original provider fields are retained below.

Provider details and historical evidence

Original provider fields

{
  "package_releases": [
    {
      "name": "log4cxx",
      "status": "fixed",
      "release": "sid",
      "version": "1.5.0-1"
    },
    {
      "name": "log4cxx",
      "status": "fixed",
      "release": "forky",
      "version": "1.5.0-1"
    },
    {
      "name": "log4cxx",
      "status": "fixed",
      "release": "trixie",
      "version": "1.4.0-1+deb13u1"
    },
    {
      "name": "log4cxx",
      "status": "fixed",
      "release": "bookworm",
      "version": "1.0.0-1+deb12u1"
    }
  ],
  "fixed_versions": [
    {
      "bug": 1111881,
      "name": "log4cxx",
      "type": "source",
      "origin": null,
      "release": "sid",
      "urgency": "not yet assigned",
      "fixed_version": "1.4.0-1.1"
    },
    {
      "bug": 1111881,
      "name": "log4cxx",
      "type": "source",
      "origin": null,
      "release": "forky",
      "urgency": "not yet assigned",
      "fixed_version": "1.4.0-1.1"
    },
    {
      "bug": 1111881,
      "name": "log4cxx",
      "type": "source",
      "origin": null,
      "release": "trixie",
      "urgency": "not yet assigned",
      "fixed_version": "1.4.0-1+deb13u1"
    },
    {
      "bug": 1111881,
      "name": "log4cxx",
      "type": "source",
      "origin": null,
      "release": "bookworm",
      "urgency": "not yet assigned",
      "fixed_version": "1.0.0-1+deb12u1"
    }
  ],
  "distribution_packages": [
    {
      "name": "log4cxx",
      "distro": "ubuntu",
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            }
          ]
        }
      ],
      "release": "14.04",
      "versions": [
        "0.10.0-1.2ubuntu3"
      ],
      "ecosystem": "deb",
      "fixed_version": "",
      "provider_record_id": "UBUNTU-CVE-2025-54813"
    },
    {
      "name": "log4cxx",
      "distro": "ubuntu",
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            }
          ]
        }
      ],
      "release": "16.04",
      "versions": [
        "0.10.0-9ubuntu1",
        "0.10.0-9ubuntu2",
        "0.10.0-10ubuntu1"
      ],
      "ecosystem": "deb",
      "fixed_version": "",
      "provider_record_id": "UBUNTU-CVE-2025-54813"
    },
    {
      "name": "log4cxx",
      "distro": "ubuntu",
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            }
          ]
        }
      ],
      "release": "18.04",
      "versions": [
        "0.10.0-12ubuntu1",
        "0.10.0-13ubuntu1",
        "0.10.0-13ubuntu2"
      ],
      "ecosystem": "deb",
      "fixed_version": "",
      "provider_record_id": "UBUNTU-CVE-2025-54813"
    },
    {
      "name": "log4cxx",
      "distro": "ubuntu",
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            }
          ]
        }
      ],
      "release": "20.04",
      "versions": [
        "0.10.0-15ubuntu1",
        "0.10.0-15ubuntu2"
      ],
      "ecosystem": "deb",
      "fixed_version": "",
      "provider_record_id": "UBUNTU-CVE-2025-54813"
    },
    {
      "name": "log4cxx",
      "distro": "ubuntu",
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            }
          ]
        }
      ],
      "release": "22.04",
      "versions": [
        "0.11.0-2ubuntu1",
        "0.11.0-3ubuntu2",
        "0.12.1-4"
      ],
      "ecosystem": "deb",
      "fixed_version": "",
      "provider_record_id": "UBUNTU-CVE-2025-54813"
    },
    {
      "name": "log4cxx",
      "distro": "ubuntu",
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            }
          ]
        }
      ],
      "release": "24.04",
      "versions": [
        "1.1.0-1",
        "1.1.0-1build1",
        "1.1.0-1build2",
        "1.1.0-1build3"
      ],
      "ecosystem": "deb",
      "fixed_version": "",
      "provider_record_id": "UBUNTU-CVE-2025-54813"
    },
    {
      "name": "log4cxx",
      "distro": "ubuntu",
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            }
          ]
        }
      ],
      "release": "25.10",
      "versions": [
        "1.3.1-1",
        "1.4.0-1"
      ],
      "ecosystem": "deb",
      "fixed_version": "",
      "provider_record_id": "UBUNTU-CVE-2025-54813"
    },
    {
      "name": "log4cxx",
      "distro": "ubuntu",
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            }
          ]
        }
      ],
      "release": "26.04",
      "versions": [
        "1.4.0-1",
        "1.5.0-1"
      ],
      "ecosystem": "deb",
      "fixed_version": "",
      "provider_record_id": "UBUNTU-CVE-2025-54813"
    }
  ]
}

[Debian bug #1111881]

OpenFactory catalog packages

Matching against OpenFactory catalog package versions is in progress.

[Debian 12 (Bookworm)]

[liblog4cxx15]Unknown
Source package: [log4cxx]
Details (2)
- 1.0.0-1+deb12u1 · amd64 · bookworm
  Fixed · Fixed: 1.0.0-1+deb12u1
  dsa · log4cxx · debian · bookworm; dsa · log4cxx · debian · 12
- 1.0.0-1+deb12u1 · arm64 · bookworm
  Fixed · Fixed: 1.0.0-1+deb12u1
  dsa · log4cxx · debian · bookworm; dsa · log4cxx · debian · 12
[liblog4cxx-dev]Unknown
Source package: [log4cxx]
Details (2)
- 1.0.0-1+deb12u1 · amd64 · bookworm
  Fixed · Fixed: 1.0.0-1+deb12u1
  dsa · log4cxx · debian · bookworm; dsa · log4cxx · debian · 12
- 1.0.0-1+deb12u1 · arm64 · bookworm
  Fixed · Fixed: 1.0.0-1+deb12u1
  dsa · log4cxx · debian · bookworm; dsa · log4cxx · debian · 12
[liblog4cxx-doc]Unknown
Source package: [log4cxx]
Details (2)
- 1.0.0-1+deb12u1 · all · bookworm
  Fixed · Fixed: 1.0.0-1+deb12u1
  dsa · log4cxx · debian · bookworm; dsa · log4cxx · debian · 12
- 1.0.0-1+deb12u1 · all · bookworm
  Fixed · Fixed: 1.0.0-1+deb12u1
  dsa · log4cxx · debian · bookworm; dsa · log4cxx · debian · 12

[Debian 13 (Trixie)]

[liblog4cxx15]Unknown
Source package: [log4cxx]
Details (2)
- 1.4.0-1+deb13u1 · amd64 · trixie
  Fixed · Fixed: 1.4.0-1+deb13u1
  dsa · log4cxx · debian · 13
- 1.4.0-1+deb13u1 · arm64 · trixie
  Fixed · Fixed: 1.4.0-1+deb13u1
  dsa · log4cxx · debian · 13
[liblog4cxx-dev]Unknown
Source package: [log4cxx]
Details (2)
- 1.4.0-1+deb13u1 · amd64 · trixie
  Fixed · Fixed: 1.4.0-1+deb13u1
  dsa · log4cxx · debian · 13
- 1.4.0-1+deb13u1 · arm64 · trixie
  Fixed · Fixed: 1.4.0-1+deb13u1
  dsa · log4cxx · debian · 13
[liblog4cxx-doc]Unknown
Source package: [log4cxx]
Details (2)
- 1.4.0-1+deb13u1 · all · trixie
  Fixed · Fixed: 1.4.0-1+deb13u1
  dsa · log4cxx · debian · 13
- 1.4.0-1+deb13u1 · all · trixie
  Fixed · Fixed: 1.4.0-1+deb13u1
  dsa · log4cxx · debian · 13

Observed: Oct 24, 2026, 7:23:51 PM UTC

References

[Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX]