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Fencer Vulns
high 7.0

CVE-2025-11226 json

Conditional processing of logback.xml configuration file, in conjuction with Spring Framework and Janino

published 2025-10-01 13 mo ago modified 2026-10-09 31 d ago also GHSA-25qh-j22f-pwp8 , EUVD-2025-32903

cvss
7.0
version 4.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 9%
public exploits
0
none known

Summary

ACE vulnerability in conditional configuration file processing by QOS.CH logback-core up to and including version 1.5.18 in Java applications, allows an attacker to execute arbitrary code by compromising an existing logback configuration file or by injecting an environment variable before program execution.

A successful attack requires the presence of Janino library and Spring Framework to be present on the user's class path. In addition, the attacker must  have write access to a configuration file. Alternatively, the attacker could inject a malicious environment variable pointing to a malicious configuration file. In both cases, the attack requires existing privilege.

Patch / fix

  • maven ch.qos.logback:logback-core 1.3.16, 1.5.19
  • QOS.CH Sarl Logback-core 1.3.16, 1.5.19
  • logback Debian 14 1:1.6.3-1

debian advisories DEBIAN-CVE-2025-11226

  • logback openSUSE Leap 15.6 1.2.13-150200.3.13.1

suse advisories SUSE-SU-2025:03456-1

  • logback openSUSE Tumbleweed 1.2.13-1.1

opensuse advisories openSUSE-SU-2025:15597-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2025-11226 updated cvss 6.4

ch.qos.logback/logback-core: Conditional abitrary code execution in logback-core

  • Red Hat Logging Subsystem for Red Hat OpenShift logback-core Red Hat Migration Toolkit for Applications 8 logback-core Red Hat OpenShift Serverless openshift-serverless-1/kn-ekb-receiver-rhel8, openshift-serverless-1/kn-ekb-dispatcher-rhel8, openshift-serverless-1/kn-ekb-post-install-rhel8, openshift-serverless-1/kn-ekb-webhook-kafka-rhel8, openshift-serverless-1/kn-ekb-kafka-controller-rhel8, openshift-serverless-1/kn-eventing-istio-controller-rhel8 Red Hat AMQ Broker 7 logback-core Red Hat AMQ Clients logback-core Red Hat build of Apache Camel - HawtIO 4 logback-core
    +8 more products
    Red Hat build of Apache Camel for Spring Boot 4 logback-core Red Hat build of Debezium 2 logback-core Red Hat build of Debezium 3 logback-core Red Hat build of OptaPlanner 8 logback-core Red Hat Data Grid 8 logback-core Red Hat Enterprise Linux 8 log4j, slf4j, log4j-jcl, log4j-web, slf4j-ext, slf4j-jcl, +10 more Red Hat Enterprise Linux 9 log4j, slf4j, log4j-jcl, slf4j-jcl, log4j-slf4j, slf4j-jdk14, +7 more Red Hat Enterprise Linux 10 slf4j
    affected: workaround, no fix available “Fix deferred”
  • Red Hat Fuse 7 logback-core
    affected: workaround, no fix planned “Out of support scope”
  • Red Hat JBoss Enterprise Application Platform 7 logback-core Red Hat JBoss Enterprise Application Platform 8 logback-core Red Hat JBoss Enterprise Application Platform Expansion Pack logback-core Red Hat JBoss Web Server 6 logback-core Red Hat OpenShift Dev Spaces devspaces/server-rhel8, devspaces/server-rhel9, devspaces/openvsx-rhel9, devspaces/pluginregistry-rhel9 Red Hat Process Automation 7 logback-core
    +3 more products
    Red Hat Satellite 6 candlepin, puppetserver, candlepin-selinux Red Hat Single Sign-On 7 logback-core Red Hat streams for Apache Kafka 3 logback-core
    affected: workaround, no fix available “Fix deferred”

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
4 mo ago

Exploit prediction

0.19% chance of exploitation in the next 30 days, higher than 9% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 4.0 7.0 CVSS:4.0/AV:L/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:N/SC:L/SI:L/SA:N/S:P/AU:N/RE:M/U:Green
CNA 4.0 7.0 CVSS:4.0/AV:L/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:P/AU:N/R:X/V:X/RE:M/U:Green

Affected packages

ecosystem package affected fixed in
maven ch.qos.logback:logback-core
>=1.4.0, <1.5.19
<1.3.16
1.5.19
1.3.16

Affected products

  • QOS.CH Sarl Logback-core

Classification

Weakness
  • CWE-20 Improper Input Validation

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.