CVE-2026-92162 (GCVE-0-2026-92162)
Vulnerability from cvelistv5
Published
2026-10-20 14:39
Modified
2026-10-20 15:32
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Summary
Flatpak is a system for building, distributing, and running sandboxed desktop applications on Linux. Prior to version 1.18.1, on systems where at least one OCI remote is configured (most common on Fedora systems), a malicious local user in an active local session could use a crafted architecture name to trick the `flatpak-system-helper` process into creating a root-owned directory tree with contents determined by the OCI remote, plus a root-owned `lock` file and `icons` directory, outside the intended root directory. If this vulnerability is combined with other vulnerabilities also fixed in 1.18.1, the combination can lead to local root privilege escalation. This particular vulnerability is not believed to be exploitable if there are no OCI remotes configured (common on non-Fedora systems). Version 1.18.1 patches the issue.
References
| URL | Tags | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-92162",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-10-20T15:31:59.509901Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-10-20T15:32:18.640Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "flatpak",
"vendor": "flatpak",
"versions": [
{
"status": "affected",
"version": "\u003c 1.18.1"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Flatpak is a system for building, distributing, and running sandboxed desktop applications on Linux. Prior to version 1.18.1, on systems where at least one OCI remote is configured (most common on Fedora systems), a malicious local user in an active local session could use a crafted architecture name to trick the `flatpak-system-helper` process into creating a root-owned directory tree with contents determined by the OCI remote, plus a root-owned `lock` file and `icons` directory, outside the intended root directory. If this vulnerability is combined with other vulnerabilities also fixed in 1.18.1, the combination can lead to local root privilege escalation. This particular vulnerability is not believed to be exploitable if there are no OCI remotes configured (common on non-Fedora systems). Version 1.18.1 patches the issue."
}
],
"metrics": [
{
"cvssV4_0": {
"attackComplexity": "LOW",
"attackRequirements": "PRESENT",
"attackVector": "LOCAL",
"baseScore": 7.2,
"baseSeverity": "HIGH",
"privilegesRequired": "LOW",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"userInteraction": "NONE",
"vectorString": "CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N",
"version": "4.0",
"vulnAvailabilityImpact": "NONE",
"vulnConfidentialityImpact": "HIGH",
"vulnIntegrityImpact": "HIGH"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-22",
"description": "CWE-22: Improper Limitation of a Pathname to a Restricted Directory (\u0027Path Traversal\u0027)",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-10-20T14:39:50.538Z",
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M"
},
"references": [
{
"name": "https://github.com/flatpak/flatpak/security/advisories/GHSA-v2gw-v9h5-9q4x",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/flatpak/flatpak/security/advisories/GHSA-v2gw-v9h5-9q4x"
},
{
"name": "https://github.com/flatpak/flatpak/pull/6768",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/flatpak/flatpak/pull/6768"
},
{
"name": "https://github.com/flatpak/flatpak/commit/01773f84021dd090b2426f79675f94f2564f9279",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/flatpak/flatpak/commit/01773f84021dd090b2426f79675f94f2564f9279"
},
{
"name": "https://github.com/flatpak/flatpak/commit/19456b916842b079af833a86b9ab89c5db154b92",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/flatpak/flatpak/commit/19456b916842b079af833a86b9ab89c5db154b92"
},
{
"name": "https://github.com/flatpak/flatpak/commit/aeb369a2723506fabc1f701ef7a0dc6c97c4b983",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/flatpak/flatpak/commit/aeb369a2723506fabc1f701ef7a0dc6c97c4b983"
}
],
"source": {
"advisory": "GHSA-v2gw-v9h5-9q4x",
"discovery": "UNKNOWN"
},
"title": "Flatpak vulnerable to path traversal via unvalidated \"arch\" parameter in DeployAppstream"
}
},
"cveMetadata": {
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"assignerShortName": "GitHub_M",
"cveId": "CVE-2026-92162",
"datePublished": "2026-10-20T14:39:50.538Z",
"dateReserved": "2026-09-15T17:13:57.866Z",
"dateUpdated": "2026-10-20T15:32:18.640Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"vulnrichment": {
"containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-92162\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"total\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-10-20T15:31:59.509901Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-10-20T15:32:15.704Z\"}}], \"cna\": {\"title\": \"Flatpak vulnerable to path traversal via unvalidated \\\"arch\\\" parameter in DeployAppstream\", \"source\": {\"advisory\": \"GHSA-v2gw-v9h5-9q4x\", \"discovery\": \"UNKNOWN\"}, \"metrics\": [{\"cvssV4_0\": {\"version\": \"4.0\", \"baseScore\": 7.2, \"attackVector\": \"LOCAL\", \"baseSeverity\": \"HIGH\", \"vectorString\": \"CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"attackRequirements\": \"PRESENT\", \"privilegesRequired\": \"LOW\", \"subIntegrityImpact\": \"NONE\", \"vulnIntegrityImpact\": \"HIGH\", \"subAvailabilityImpact\": \"NONE\", \"vulnAvailabilityImpact\": \"NONE\", \"subConfidentialityImpact\": \"NONE\", \"vulnConfidentialityImpact\": \"HIGH\"}}], \"affected\": [{\"vendor\": \"flatpak\", \"product\": \"flatpak\", \"versions\": [{\"status\": \"affected\", \"version\": \"\u003c 1.18.1\"}]}], \"references\": [{\"url\": \"https://github.com/flatpak/flatpak/security/advisories/GHSA-v2gw-v9h5-9q4x\", \"name\": \"https://github.com/flatpak/flatpak/security/advisories/GHSA-v2gw-v9h5-9q4x\", \"tags\": [\"x_refsource_CONFIRM\"]}, {\"url\": \"https://github.com/flatpak/flatpak/pull/6768\", \"name\": \"https://github.com/flatpak/flatpak/pull/6768\", \"tags\": [\"x_refsource_MISC\"]}, {\"url\": \"https://github.com/flatpak/flatpak/commit/01773f84021dd090b2426f79675f94f2564f9279\", \"name\": \"https://github.com/flatpak/flatpak/commit/01773f84021dd090b2426f79675f94f2564f9279\", \"tags\": [\"x_refsource_MISC\"]}, {\"url\": \"https://github.com/flatpak/flatpak/commit/19456b916842b079af833a86b9ab89c5db154b92\", \"name\": \"https://github.com/flatpak/flatpak/commit/19456b916842b079af833a86b9ab89c5db154b92\", \"tags\": [\"x_refsource_MISC\"]}, {\"url\": \"https://github.com/flatpak/flatpak/commit/aeb369a2723506fabc1f701ef7a0dc6c97c4b983\", \"name\": \"https://github.com/flatpak/flatpak/commit/aeb369a2723506fabc1f701ef7a0dc6c97c4b983\", \"tags\": [\"x_refsource_MISC\"]}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"Flatpak is a system for building, distributing, and running sandboxed desktop applications on Linux. Prior to version 1.18.1, on systems where at least one OCI remote is configured (most common on Fedora systems), a malicious local user in an active local session could use a crafted architecture name to trick the `flatpak-system-helper` process into creating a root-owned directory tree with contents determined by the OCI remote, plus a root-owned `lock` file and `icons` directory, outside the intended root directory. If this vulnerability is combined with other vulnerabilities also fixed in 1.18.1, the combination can lead to local root privilege escalation. This particular vulnerability is not believed to be exploitable if there are no OCI remotes configured (common on non-Fedora systems). Version 1.18.1 patches the issue.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-22\", \"description\": \"CWE-22: Improper Limitation of a Pathname to a Restricted Directory (\u0027Path Traversal\u0027)\"}]}], \"providerMetadata\": {\"orgId\": \"a0819718-46f1-4df5-94e2-005712e83aaa\", \"shortName\": \"GitHub_M\", \"dateUpdated\": \"2026-10-20T14:39:50.538Z\"}}}",
"cveMetadata": "{\"cveId\": \"CVE-2026-92162\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-10-20T15:32:18.640Z\", \"dateReserved\": \"2026-09-15T17:13:57.866Z\", \"assignerOrgId\": \"a0819718-46f1-4df5-94e2-005712e83aaa\", \"datePublished\": \"2026-10-20T14:39:50.538Z\", \"assignerShortName\": \"GitHub_M\"}",
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
}
}
Loading…
Loading…
Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
Loading…
Loading…