ACE vulnerability in conditional configuration file processing by QOS.CH logback-core up to and including version 1.5.34 in Java applications, allows an attacker to execute arbitrary code circumventing existing protections against CVE-2025-11226 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 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.
Metrics
Affected Vendors & Products
References
| Link | Providers |
|---|---|
| https://logback.qos.ch/news.html#1.5.35 |
|
History
Wed, 24 Jun 2026 16:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Qos.ch Sarl
Qos.ch Sarl logback-core |
|
| Vendors & Products |
Qos.ch Sarl
Qos.ch Sarl logback-core |
Wed, 24 Jun 2026 13:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
Wed, 24 Jun 2026 06:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | ACE vulnerability in conditional configuration file processing by QOS.CH logback-core up to and including version 1.5.34 in Java applications, allows an attacker to execute arbitrary code circumventing existing protections against CVE-2025-11226 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 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. | |
| Title | Incomplete protection against CVE-2025-11226 | |
| Weaknesses | CWE-20 | |
| References |
| |
| Metrics |
cvssV4_0
|
Status: PUBLISHED
Assigner: NCSC.ch
Published: 2026-06-24T05:41:32.197Z
Updated: 2026-06-24T12:24:27.699Z
Reserved: 2026-06-23T14:31:36.004Z
Link: CVE-2026-13006
Updated: 2026-06-24T12:24:24.228Z
No data.
No data.