CVE-2026-13006

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In addition, the attacker must\u00a0 have write access to a \nconfiguration file. Alternatively, the attacker could inject a malicious \nenvironment variable pointing to a malicious configuration file. In both \ncases, the attack requires existing privilege.\n\nPlease note that in logack version 1.5.37 conditional processing using Janino was removed.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "<div>ACE vulnerability in conditional configuration file processing by QOS.CH logback-core up to and including version 1.5.36 in Java applications, allows an attacker to execute arbitrary code circumventing existing protections against CVE-2025-11226 by&nbsp;compromising an existing logback configuration file or by injecting an environment variable before program execution.<br></div><div><br>A successful attack requires the presence of Janino library to be present on the user's class path. 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In addition, the attacker must\u00a0 have write access to a \nconfiguration file. Alternatively, the attacker could inject a malicious \nenvironment variable pointing to a malicious configuration file. In both \ncases, the attack requires existing privilege.\n\nPlease note that in logack version 1.5.37 conditional processing using Janino was removed.", "supportingMedia": [{"type": "text/html", "value": "<div>ACE vulnerability in conditional configuration file processing by QOS.CH logback-core up to and including version 1.5.36 in Java applications, allows an attacker to execute arbitrary code circumventing existing protections against CVE-2025-11226 by&nbsp;compromising an existing logback configuration file or by injecting an environment variable before program execution.<br></div><div><br>A successful attack requires the presence of Janino library to be present on the user's class path. In addition, the attacker must&nbsp; have write access to a \nconfiguration file. 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{"bugzilla": {"description": "logback-core: Logback-core: Arbitrary Code Execution via Malicious Configuration or Environment Variable", "id": "2492077", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2492077"}, "csaw": false, "cvss3": {"cvss3_base_score": "6.0", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N", "status": "draft"}, "cwe": "CWE-94", "details": ["A flaw was found in logback-core, a logging framework for Java applications. This vulnerability allows an attacker with existing privileges and write access to a configuration file, or the ability to inject a malicious environment variable, to execute arbitrary code. This can be achieved by compromising an existing logback configuration file or by injecting an environment variable before program execution, circumventing existing protections. 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{"affected": [{"configurations": [{"platform": ["java"], "status": "affected", "versions": {"scheme": "semver", "value": "[0.9.20,1.5.134]"}}, {"platform": ["java"], "status": "unaffected", "versions": {"scheme": "semver", "value": "1.5.35"}}], "enrichment": {"confidence": 100.0, "confidence_source": "cna", "scores": [{"score": 100.0, "source": "cna"}]}, "original": {"product": "Logback-core", "source": "cna", "vendor": "QOS.CH Sarl"}, "product": "logback-core", "vendor": "qos.ch_sarl"}], "created": "2026-06-24T10:45:03.160634+00:00", "updated": "2026-08-02T01:45:06.542239+00:00", "vendors": ["qos.ch_sarl", "qos.ch_sarl$PRODUCT$logback-core"]}