CVE catalog
CVE-2025-54812
log4cxx: CVE-2025-54812
- Severity
- Medium · CVSS 5.4
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 1.24% · Oct 25, 2026
Improper Output Neutralization for Logs vulnerability in Apache Log4cxx. When using HTMLLayout, logger names are not properly escaped when writing out to the HTML file. If untrusted data is used to retrieve the name of a logger, an attacker could theoretically inject HTML or Javascript in order to hide information from logs or steal data from the user. In order to activate this, the following sequence must occur: * Log4cxx is configured to use HTMLLayout. * Logger name comes from an untrusted string * Logger with compromised name logs a message * User opens the generated HTML log file in their browser, leading to potential XSS Because logger names are generally constant strings, we assess the impact to users as LOW This issue affects Apache Log4cxx: before 1.5.0. Users are recommended to upgrade to version 1.5.0, which fixes the issue.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | log4cxx | sid | 1.5.0-1 | fixed |
| Debian | log4cxx | forky | 1.5.0-1 | fixed |
| Debian | log4cxx | trixie | 1.4.0-1+deb13u1 | fixed |
| Debian | log4cxx | bookworm | 1.0.0-1+deb12u1 | fixed |
| Ubuntu | log4cxx | 14.04 | 0.10.0-1.2ubuntu3 | vulnerable |
| Ubuntu | log4cxx | 16.04 | 0.10.0-9ubuntu1 | vulnerable |
| Ubuntu | log4cxx | 16.04 | 0.10.0-9ubuntu2 | vulnerable |
| Ubuntu | log4cxx | 16.04 | 0.10.0-10ubuntu1 | vulnerable |
| Ubuntu | log4cxx | 18.04 | 0.10.0-12ubuntu1 | vulnerable |
| Ubuntu | log4cxx | 18.04 | 0.10.0-13ubuntu1 | vulnerable |
| Ubuntu | log4cxx | 18.04 | 0.10.0-13ubuntu2 | vulnerable |
| Ubuntu | log4cxx | 20.04 | 0.10.0-15ubuntu1 | vulnerable |
| Ubuntu | log4cxx | 20.04 | 0.10.0-15ubuntu2 | vulnerable |
| Ubuntu | log4cxx | 22.04 | 0.11.0-2ubuntu1 | vulnerable |
| Ubuntu | log4cxx | 22.04 | 0.11.0-3ubuntu2 | vulnerable |
| Ubuntu | log4cxx | 22.04 | 0.12.1-4 | vulnerable |
| Ubuntu | log4cxx | 24.04 | 1.1.0-1 | vulnerable |
| Ubuntu | log4cxx | 24.04 | 1.1.0-1build1 | vulnerable |
| Ubuntu | log4cxx | 24.04 | 1.1.0-1build2 | vulnerable |
| Ubuntu | log4cxx | 24.04 | 1.1.0-1build3 | vulnerable |
| Ubuntu | log4cxx | 25.10 | 1.3.1-1 | vulnerable |
| Ubuntu | log4cxx | 25.10 | 1.4.0-1 | vulnerable |
| Ubuntu | log4cxx | 26.04 | 1.4.0-1 | vulnerable |
| Ubuntu | log4cxx | 26.04 | 1.5.0-1 | vulnerable |
| Opensuse | log4cxx | tumbleweed | 1.5.0-1.1 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | log4cxx | source | sid | 1.4.0-1.1 | not yet assigned | Not reported | [1111879] |
| Debian | log4cxx | source | forky | 1.4.0-1.1 | not yet assigned | Not reported | [1111879] |
| Debian | log4cxx | source | trixie | 1.4.0-1+deb13u1 | not yet assigned | Not reported | [1111879] |
| Debian | log4cxx | source | bookworm | 1.0.0-1+deb12u1 | not yet assigned | Not reported | [1111879] |
| Opensuse | log4cxx | rpm | tumbleweed | 1.5.0-1.1 | Not reported | OPENSUSE-SU-2025:15549-1 | Not reported |
OpenFactory catalog packages
[openSUSE Tumbleweed]
- [liblog4cxx15]Unknown
Source package: [log4cxx]
Details (1)
1.8.0-1.1· x86_64 · tumbleweedUnknown · Fixed:
1.5.0-1.1Version impact unknown
dsa · log4cxx · opensuse · tumbleweed
- [liblog4cxx-devel]Unknown
Source package: [log4cxx]
Details (1)
1.8.0-1.1· x86_64 · tumbleweedUnknown · Fixed:
1.5.0-1.1Version impact unknown
dsa · log4cxx · opensuse · tumbleweed
[Debian 12 (Bookworm)]
- [liblog4cxx15]Fixed
Source package: [log4cxx]
Details (2)
1.0.0-1+deb12u1· amd64 · bookwormFixed · Fixed:
1.0.0-1+deb12u1dsa · log4cxx · debian · bookworm; dsa · log4cxx · debian · 12
1.0.0-1+deb12u1· arm64 · bookwormFixed · Fixed:
1.0.0-1+deb12u1dsa · log4cxx · debian · bookworm; dsa · log4cxx · debian · 12
- [liblog4cxx-dev]Fixed
Source package: [log4cxx]
Details (2)
1.0.0-1+deb12u1· amd64 · bookwormFixed · Fixed:
1.0.0-1+deb12u1dsa · log4cxx · debian · bookworm; dsa · log4cxx · debian · 12
1.0.0-1+deb12u1· arm64 · bookwormFixed · Fixed:
1.0.0-1+deb12u1dsa · log4cxx · debian · bookworm; dsa · log4cxx · debian · 12
- [liblog4cxx-doc]Fixed
Source package: [log4cxx]
Details (2)
1.0.0-1+deb12u1· all · bookwormFixed · Fixed:
1.0.0-1+deb12u1dsa · log4cxx · debian · bookworm; dsa · log4cxx · debian · 12
1.0.0-1+deb12u1· all · bookwormFixed · Fixed:
1.0.0-1+deb12u1dsa · log4cxx · debian · bookworm; dsa · log4cxx · debian · 12
[Debian 13 (Trixie)]
- [liblog4cxx15]Fixed
Source package: [log4cxx]
Details (2)
1.4.0-1+deb13u1· amd64 · trixieFixed · Fixed:
1.4.0-1+deb13u1dsa · log4cxx · debian · 13
1.4.0-1+deb13u1· arm64 · trixieFixed · Fixed:
1.4.0-1+deb13u1dsa · log4cxx · debian · 13
- [liblog4cxx-dev]Fixed
Source package: [log4cxx]
Details (2)
1.4.0-1+deb13u1· amd64 · trixieFixed · Fixed:
1.4.0-1+deb13u1dsa · log4cxx · debian · 13
1.4.0-1+deb13u1· arm64 · trixieFixed · Fixed:
1.4.0-1+deb13u1dsa · log4cxx · debian · 13
- [liblog4cxx-doc]Fixed
Source package: [log4cxx]
Details (2)
1.4.0-1+deb13u1· all · trixieFixed · Fixed:
1.4.0-1+deb13u1dsa · log4cxx · debian · 13
1.4.0-1+deb13u1· all · trixieFixed · Fixed:
1.4.0-1+deb13u1dsa · log4cxx · debian · 13
Observed:
References
- [https://ftp.suse.com/pub/projects/security/csaf/opensuse-su-2025_15549-1.json]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2025-54812]
- [https://osv.dev/vulnerability/DLA-4322-1]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2025-54812]
- [https://osv.dev/vulnerability/openSUSE-SU-2025:15549-1]
- [https://security-tracker.debian.org/tracker/CVE-2025-54812]
- [https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-54812.json]
[Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]