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vuln-cve/data/2026/97xxx/CVE-2026-97029.json
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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2026-97029",
"assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
"state": "PUBLISHED",
"assignerShortName": "redhat",
"dateReserved": "2026-09-23T21:15:11.736Z",
"datePublished": "2026-09-29T03:43:16.941Z",
"dateUpdated": "2026-11-06T02:18:04.840Z"
},
"containers": {
"cna": {
"title": "Flatpak: flatpak: sandboxed app can signal unsandboxed processes in the same process group",
"metrics": [
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"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 5.7,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H",
"version": "3.1"
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"format": "CVSS"
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"descriptions": [
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"lang": "en",
"value": "Flatpak's process ID namespace separation does not prevent a sandboxed app's kill(0, signal) or killpg(0, signal) calls from reaching processes outside the sandbox that share the same process group. A malicious or compromised Flatpak app can use this to cause denial of service by terminating processes outside its sandbox, such as the desktop shell."
}
],
"affected": [
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"vendor": "Red Hat",
"product": "Red Hat Enterprise Linux 10",
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{
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"product": "Red Hat Enterprise Linux 8",
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"packageName": "flatpak",
"defaultStatus": "affected",
"cpes": [
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{
"vendor": "Red Hat",
"product": "Red Hat Enterprise Linux 9",
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"packageName": "flatpak",
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{
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"tags": [
"vdb-entry",
"x_refsource_REDHAT"
]
},
{
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2542698",
"name": "RHBZ#2542698",
"tags": [
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},
{
"url": "https://github.com/flatpak/flatpak/security/advisories/GHSA-f3p8-vr7v-gxf2"
}
],
"datePublic": "2026-09-28T13:30:56.000Z",
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-653",
"description": "Improper Isolation or Compartmentalization",
"lang": "en",
"type": "CWE"
}
]
}
],
"x_redhatCweChain": "CWE-653: Improper Isolation or Compartmentalization",
"workarounds": [
{
"lang": "en",
"value": "Run Flatpak apps in a new session (setsid flatpak run ... or setsid() in the parent) or a new process group (setpgid (0, 0) in the parent), or avoid running untrusted Flatpak apps."
}
],
"timeline": [
{
"lang": "en",
"time": "2026-09-28T13:30:56.000Z",
"value": "Reported to Red Hat."
},
{
"lang": "en",
"time": "2026-09-28T13:30:56.000Z",
"value": "Made public."
}
],
"credits": [
{
"lang": "en",
"value": "Red Hat would like to thank Guthrie Armstrong (Coalition Inc.) for reporting this issue."
}
],
"providerMetadata": {
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"shortName": "redhat",
"dateUpdated": "2026-11-06T02:18:04.840Z"
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"metrics": [
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"content": {
"timestamp": "2026-09-29T15:52:12.039215Z",
"id": "CVE-2026-97029",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"version": "2.0.3"
}
}
}
],
"title": "CISA ADP Vulnrichment",
"providerMetadata": {
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"shortName": "CISA-ADP",
"dateUpdated": "2026-09-29T15:52:22.393Z"
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}