Conditional processing of logback.xml configuration file, in conjuction with Spring Framework and Janino
Key facts
- Attack vector
- Local
- Privileges required
- High
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- Present
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · None
- Fix status
- Partial Red Hat: 24 without a fix
Attack profile from CVSS 4.0 · CNA. Fix status from CNA, GitHub and Red Hat.
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| QOS.CH Sarl | Logback-core | 0.9.20 – 1.5.18 | 1.5.19, 1.3.16 | Patch available | CNA |
| — | ch.qos.logback:logback-core (Maven) | 1.4.0 to before 1.5.19 | 1.5.19 | Patch available | GHSA-25qh-j22f-pwp8 |
| — | ch.qos.logback:logback-core (Maven) | before 1.3.16 | 1.3.16 | Patch available | GHSA-25qh-j22f-pwp8 |
- Logback-core VendorQOS.CH Sarl Affected 0.9.20 – 1.5.18 Fixed in 1.5.19, 1.3.16 Patch available CNA
- ch.qos.logback:logback-core (Maven) Vendor— Affected 1.4.0 to before 1.5.19 Fixed in 1.5.19 Patch available GHSA-25qh-j22f-pwp8
- ch.qos.logback:logback-core (Maven) Vendor— Affected before 1.3.16 Fixed in 1.3.16 Patch available GHSA-25qh-j22f-pwp8
Remediation
- Fix · CNA Logback-core (QOS.CH Sarl) Fixed in 1.5.19, 1.3.16
- Fix · GHSA-25qh-j22f-pwp8 ch.qos.logback:logback-core (Maven) Fixed in 1.5.19 Advisory →
- Fix · GHSA-25qh-j22f-pwp8 ch.qos.logback:logback-core (Maven) Fixed in 1.3.16 Advisory →
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Logging Subsystem for Red Hat OpenShift | Affected | No fix yet: Fix deferred |
| Migration Toolkit for Applications 8 | Affected | No fix yet: Fix deferred |
| OpenShift Serverless | Affected | No fix yet: Fix deferred |
| Red Hat AMQ Broker 7 | Affected | No fix yet: Fix deferred |
| Red Hat AMQ Clients | Affected | No fix yet: Fix deferred |
| Red Hat Data Grid 8 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux 10 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux 8 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux 9 | Affected | No fix yet: Fix deferred |
| Red Hat Fuse 7 | Affected | No fix planned: Out of support scope |
| Red Hat JBoss Enterprise Application Platform 7 | Affected | No fix yet: Fix deferred |
| Red Hat JBoss Enterprise Application Platform 8 | Affected | No fix yet: Fix deferred |
| Red Hat JBoss Enterprise Application Platform Expansion Pack | Affected | No fix yet: Fix deferred |
| Red Hat JBoss Web Server 6 | Affected | No fix yet: Fix deferred |
| Red Hat OpenShift Dev Spaces | Affected | No fix yet: Fix deferred |
| Red Hat Process Automation 7 | Affected | No fix yet: Fix deferred |
| Red Hat Satellite 6 | Affected | No fix yet: Fix deferred |
| Red Hat Single Sign-On 7 | Affected | No fix yet: Fix deferred |
| Red Hat build of Apache Camel - HawtIO 4 | Affected | No fix yet: Fix deferred |
| Red Hat build of Apache Camel for Spring Boot 4 | Affected | No fix yet: Fix deferred |
| Red Hat build of Debezium 2 | Affected | No fix yet: Fix deferred |
| Red Hat build of Debezium 3 | Affected | No fix yet: Fix deferred |
| Red Hat build of OptaPlanner 8 | Affected | No fix yet: Fix deferred |
| streams for Apache Kafka 3 | Affected | No fix yet: Fix deferred |
Timeline
- 2026-10-02 Threatist record created from CVE-2025-11226
- 2026-10-03 Alias added: GHSA-25qh-j22f-pwp8
References
More QOS.CH Sarl vulnerabilities
- TI-2026-11065 Incomplete protection against CVE-2025-11226 CVSS 4.0HIGH 7.0
- TI-2024-11860 JaninoEventEvaluator vulnerability CVSS 4.0MEDIUM 5.9
- TI-2026-66127 Logback: Incomplete protection against CVE-2026-19880 CVSS 4.0MEDIUM 6.3
- TI-2026-16116 Incomplete protection against CVE-2025-11226 CVSS 4.0MEDIUM 6.3
- TI-2026-09059 Logback deserialization whitelist bypass for Proxy objects CVSS 4.0LOW 2.9
- TI-2026-08607 Logback deserialization whitelist bypass for java.lang and java.util CVSS 4.0LOW 2.9
Sources
- CVE-2025-11226 · CVE Program
- CVE-2025-11226 · NVD
- FIRST EPSS
- GHSA-25qh-j22f-pwp8 · GitHub Advisory Database · CC BY 4.0
- CVE-2025-11226 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences