FKIE_CVE-2026-10037
Vulnerability from fkie_nvd - Published: 2026-07-08 22:17 - Updated: 2026-07-09 17:05
Severity
Summary
A sandbox escape vulnerability exists in the OpenJDK packages provided in Ubuntu. The .jar MIME handlers installed by these packages execute files marked as executable when the mailcap package is installed. A compromised or malicious sandboxed application with access to the OpenURI portal via xdg-desktop-portal-gtk can write a malicious .jar file to the host file system, set its executable bit, and trigger the handler to execute arbitrary code outside of the sandbox environment.
References
Impacted products
| Vendor | Product | Version |
|---|
{
"affected": [
{
"affectedData": [
{
"defaultStatus": "unaffected",
"packageName": "openjdk-8",
"product": "Ubuntu",
"vendor": "Canonical"
},
{
"defaultStatus": "unaffected",
"packageName": "openjdk-9",
"product": "Ubuntu",
"vendor": "Canonical"
},
{
"defaultStatus": "unaffected",
"packageName": "openjdk-13",
"product": "Ubuntu",
"vendor": "Canonical"
},
{
"defaultStatus": "unaffected",
"packageName": "openjdk-16",
"product": "Ubuntu",
"vendor": "Canonical"
},
{
"defaultStatus": "unaffected",
"packageName": "openjdk-17",
"product": "Ubuntu",
"vendor": "Canonical"
},
{
"defaultStatus": "unaffected",
"packageName": "openjdk-18",
"product": "Ubuntu",
"vendor": "Canonical"
},
{
"defaultStatus": "unaffected",
"packageName": "openjdk-21",
"product": "Ubuntu",
"vendor": "Canonical"
},
{
"defaultStatus": "unaffected",
"packageName": "openjdk-25",
"product": "Ubuntu",
"vendor": "Canonical"
},
{
"defaultStatus": "unaffected",
"packageName": "openjdk-lts",
"product": "Ubuntu",
"vendor": "Canonical"
},
{
"defaultStatus": "unaffected",
"packageName": "mailcap",
"product": "Ubuntu",
"vendor": "Canonical",
"versions": [
{
"lessThan": "3.70+nmu1ubuntu1.22.04.1",
"status": "affected",
"version": "0",
"versionType": "custom"
},
{
"lessThan": "3.70+nmu1ubuntu1.24.04.1",
"status": "affected",
"version": "0",
"versionType": "custom"
},
{
"lessThan": "3.74ubuntu1.1",
"status": "affected",
"version": "0",
"versionType": "custom"
},
{
"lessThan": "3.75ubuntu1.1",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
}
],
"source": "security@ubuntu.com"
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "A sandbox escape vulnerability exists in the OpenJDK packages provided in Ubuntu. The .jar MIME handlers installed by these packages execute files marked as executable when the mailcap package is installed. A compromised or malicious sandboxed application with access to the OpenURI portal via xdg-desktop-portal-gtk can write a malicious .jar file to the host file system, set its executable bit, and trigger the handler to execute arbitrary code outside of the sandbox environment."
}
],
"id": "CVE-2026-10037",
"lastModified": "2026-07-09T17:05:26.503",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 8.8,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "CHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
"version": "3.1"
},
"exploitabilityScore": 2.0,
"impactScore": 6.0,
"source": "security@ubuntu.com",
"type": "Secondary"
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2026-10037",
"options": [
{
"exploitation": "poc"
},
{
"automatable": "no"
},
{
"technicalImpact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-07-09T12:59:49.819408Z",
"version": "2.0.3"
}
}
]
},
"published": "2026-07-08T22:17:12.500",
"references": [
{
"source": "security@ubuntu.com",
"url": "https://bugs.launchpad.net/ubuntu/+source/openjdk-25/+bug/2153100"
},
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"url": "https://bugs.launchpad.net/ubuntu/+source/openjdk-25/+bug/2153100"
}
],
"sourceIdentifier": "security@ubuntu.com",
"vulnStatus": "Awaiting Analysis",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-20"
}
],
"source": "security@ubuntu.com",
"type": "Secondary"
}
]
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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