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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2026-13006",
"assignerOrgId": "455daabc-a392-441d-aa46-37d35189897c",
"state": "PUBLISHED",
"assignerShortName": "NCSC.ch",
"dateReserved": "2026-06-23T14:31:36.004Z",
"datePublished": "2026-06-24T05:41:32.197Z",
"dateUpdated": "2026-07-01T11:05:37.718Z"
},
"containers": {
"cna": {
"providerMetadata": {
"orgId": "455daabc-a392-441d-aa46-37d35189897c",
"shortName": "NCSC.ch",
"dateUpdated": "2026-07-01T11:05:37.718Z"
},
"title": "Incomplete protection against CVE-2025-11226",
"datePublic": "2026-06-23T11:09:00.000Z",
"problemTypes": [
{
"descriptions": [
{
"lang": "en",
"cweId": "CWE-20",
"description": "CWE-20 Improper Input Validation",
"type": "CWE"
}
]
}
],
"impacts": [
{
"descriptions": [
{
"lang": "en",
"value": "Arbitrary code execution on previously compromised system"
}
]
},
{
"capecId": "CAPEC-242",
"descriptions": [
{
"lang": "en",
"value": "CAPEC-242 Code Injection"
}
]
}
],
"affected": [
{
"vendor": "QOS.CH Sarl",
"product": "Logback-core",
"platforms": [
"Java"
],
"modules": [
"logback-core"
],
"versions": [
{
"status": "affected",
"version": "0.9.20",
"lessThanOrEqual": "1.5.36",
"versionType": "maven"
},
{
"status": "unaffected",
"version": "1.5.37",
"versionType": "maven"
}
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"defaultStatus": "unaffected"
}
],
"descriptions": [
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"lang": "en",
"value": "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 compromising an existing logback configuration file or by injecting an environment variable before program execution.\n\n\n\nA 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 \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.",
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"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. Alternatively, the attacker could inject a malicious \nenvironment variable pointing to a malicious configuration file. In both \ncases, the attack requires existing privilege.<br><br><b>Please note that in logack version 1.5.37 conditional processing using Janino was removed.</b></div><br>"
}
]
}
],
"references": [
{
"url": "https://logback.qos.ch/news.html#1.5.37"
}
],
"metrics": [
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"format": "CVSS",
"scenarios": [
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"lang": "en",
"value": "GENERAL"
}
],
"cvssV4_0": {
"attackVector": "LOCAL",
"attackComplexity": "LOW",
"attackRequirements": "PRESENT",
"privilegesRequired": "HIGH",
"userInteraction": "NONE",
"vulnConfidentialityImpact": "HIGH",
"subConfidentialityImpact": "LOW",
"vulnIntegrityImpact": "HIGH",
"subIntegrityImpact": "LOW",
"vulnAvailabilityImpact": "NONE",
"subAvailabilityImpact": "NONE",
"exploitMaturity": "NOT_DEFINED",
"Safety": "PRESENT",
"Automatable": "NO",
"Recovery": "NOT_DEFINED",
"valueDensity": "NOT_DEFINED",
"vulnerabilityResponseEffort": "MODERATE",
"providerUrgency": "GREEN",
"version": "4.0",
"baseSeverity": "HIGH",
"baseScore": 7,
"vectorString": "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"
}
}
],
"workarounds": [
{
"lang": "en",
"value": "Remove Janino from the Java classpath or update to logack version 1.5.37 or later. As of logback 1.5.20, the <condition> element with a custom PropertyEvaluator offers a recommended alternative to conditionals requiring Janino.",
"supportingMedia": [
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"value": "Remove Janino from the Java classpath or update to logack version 1.5.37 or later.&nbsp;As of logback 1.5.20, the &lt;condition&gt;&nbsp;element with a custom PropertyEvaluator offers a recommended alternative to conditionals requiring Janino.&nbsp;&nbsp;"
}
]
}
],
"solutions": [
{
"lang": "en",
"value": "Remove Janino from the Java classpath or update to logack version 1.5.37 or later. As of logback 1.5.20, the <condition> element with a custom PropertyEvaluator offers a recommended alternative to conditionals requiring Janino.",
"supportingMedia": [
{
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"base64": false,
"value": "Remove Janino from the Java classpath or update to logack version 1.5.37 or later.&nbsp;As of logback 1.5.20, the &lt;condition&gt;&nbsp;element with a custom PropertyEvaluator offers a recommended alternative to conditionals requiring Janino.&nbsp;"
}
]
}
],
"exploits": [
{
"lang": "en",
"value": "No known exploitation",
"supportingMedia": [
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"type": "text/html",
"base64": false,
"value": "No known exploitation<br>"
}
]
}
],
"credits": [
{
"lang": "en",
"value": "IcySun (icysun@qq.com)",
"type": "finder"
},
{
"lang": "en",
"value": "\"yulate\" (yulate531@gmail.com.com)",
"type": "finder"
}
],
"source": {
"discovery": "UNKNOWN"
},
"x_generator": {
"engine": "Vulnogram 0.2.0"
}
},
"adp": [
{
"metrics": [
{
"other": {
"type": "ssvc",
"content": {
"timestamp": "2026-06-24T12:24:18.335394Z",
"id": "CVE-2026-13006",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"version": "2.0.3"
}
}
}
],
"title": "CISA ADP Vulnrichment",
"providerMetadata": {
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP",
"dateUpdated": "2026-06-24T12:24:27.699Z"
}
}
]
}
}