High
docker.io, docker.io-app — security advisory
The guest-to-host Unix-domain socket relay in Docker Sandboxes validates that a socket path is inside an authorized workspace, but later reconnects using the pathname. A malicious guest can replace an intermediate directory with a symlink between validation and connection, causing the host to connect to an arbitrary AF_UNIX socket outside the shared workspace. This can expose data or host-side capabilities provided by the targeted socket.
- Products
- docker.io, docker.io-app
- Affected versions
- 1.10.2-0ubuntu3, 1.10.2-0ubuntu4, 1.10.3-0ubuntu1, 1.10.3-0ubuntu4, 1.10.3-0ubuntu5, 1.10.3-0ubuntu6, 1.11.2-0ubuntu5~16.04, 1.12.1-0ubuntu13~16.04.1, 1.12.3-0ubuntu4~16.04.2, 1.12.6-0ubuntu1~16.04.1, 1.13.1-0ubuntu1~16.04.2, 1.13.1-0ubuntu6, 1.6.2~dfsg1-1ubuntu4, 17.03.2-0ubuntu1, 17.03.2-0ubuntu2~16.04.1, 17.03.2-0ubuntu3, 17.03.2-0ubuntu5, 17.12.1-0ubuntu1, 18.06.1-0ubuntu1.2~16.04.1, 18.06.1-0ubuntu1.2~18.04.1, 18.06.1-0ubuntu1~16.04.2, 18.06.1-0ubuntu1~18.04.1, 18.09.2-0ubuntu1~16.04.1, 18.09.2-0ubuntu1~18.04.1, 18.09.5-0ubuntu1~16.04.2, 18.09.5-0ubuntu1~18.04.2, 18.09.7-0ubuntu1~16.04.1, 18.09.7-0ubuntu1~16.04.4, 18.09.7-0ubuntu1~16.04.5, 18.09.7-0ubuntu1~16.04.6, 18.09.7-0ubuntu1~16.04.7, 18.09.7-0ubuntu1~16.04.9+esm1, 18.09.7-0ubuntu1~16.04.9+esm2, 18.09.7-0ubuntu1~18.04.1, 18.09.7-0ubuntu1~18.04.3, 18.09.7-0ubuntu1~18.04.4, 19.03.2-0ubuntu1, 19.03.6-0ubuntu1, 19.03.6-0ubuntu1~18.04.1, 19.03.6-0ubuntu1~18.04.2, 19.03.6-0ubuntu1~18.04.3, 19.03.8-0ubuntu1, 19.03.8-0ubuntu1.20.04, 19.03.8-0ubuntu1.20.04.1, 19.03.8-0ubuntu1.20.04.2, 20.10.12-0ubuntu1, 20.10.12-0ubuntu2, 20.10.12-0ubuntu2~18.04.1, 20.10.12-0ubuntu2~20.04.1, 20.10.12-0ubuntu3, 20.10.12-0ubuntu3+gke1.24.1, 20.10.12-0ubuntu4, 20.10.2-0ubuntu1~18.04.2, 20.10.2-0ubuntu1~18.04.3, 20.10.2-0ubuntu1~20.04.2, 20.10.2-0ubuntu1~20.04.3, 20.10.21-0ubuntu1~18.04.2, 20.10.21-0ubuntu1~18.04.3, 20.10.21-0ubuntu1~18.04.3+esm1, 20.10.21-0ubuntu1~18.04.3+esm2, 20.10.21-0ubuntu1~18.04.3+esm3, 20.10.21-0ubuntu1~20.04.1, 20.10.21-0ubuntu1~20.04.2, 20.10.21-0ubuntu1~20.04.4, 20.10.21-0ubuntu1~20.04.5, 20.10.21-0ubuntu1~20.04.6, 20.10.21-0ubuntu1~20.04.6+esm1, 20.10.21-0ubuntu1~20.04.6+esm2, 20.10.21-0ubuntu1~22.04.2, 20.10.21-0ubuntu1~22.04.3, 20.10.21-0ubuntu1~22.04.5, 20.10.21-0ubuntu1~22.04.6, 20.10.21-0ubuntu1~22.04.7, 20.10.21-0ubuntu1~22.04.7+esm1, 20.10.21-0ubuntu1~22.04.7+esm2, 20.10.21-0ubuntu1~22.04.8, 20.10.21-0ubuntu1~22.04.8+esm1, 20.10.24+dfsg1-1ubuntu2, 20.10.25+dfsg1-2ubuntu1, 20.10.25+dfsg1-2ubuntu1+esm1, 20.10.25+dfsg1-2ubuntu1+esm2, 20.10.25+dfsg1-2ubuntu1.24.04.1, 20.10.25+dfsg1-2ubuntu1.24.04.1+esm1, 20.10.25-0ubuntu1~20.04.1, 20.10.25-0ubuntu1~20.04.2, 20.10.25-0ubuntu1~22.04.1, 20.10.25-0ubuntu1~22.04.2, 20.10.7-0ubuntu1~18.04.1, 20.10.7-0ubuntu1~18.04.2, 20.10.7-0ubuntu1~20.04.1, 20.10.7-0ubuntu1~20.04.2, 20.10.7-0ubuntu5, 20.10.7-0ubuntu5~18.04.2, 20.10.7-0ubuntu5~18.04.3, 20.10.7-0ubuntu5~20.04.1, 20.10.7-0ubuntu5~20.04.2, 20.10.7-0ubuntu7, 24.0.5-0ubuntu1, 24.0.5-0ubuntu1~20.04.1, 24.0.5-0ubuntu1~22.04.1, 24.0.7-0ubuntu1, 24.0.7-0ubuntu2, 24.0.7-0ubuntu2~20.04.1, 24.0.7-0ubuntu2~22.04.1, 24.0.7-0ubuntu3, 24.0.7-0ubuntu4, 24.0.7-0ubuntu4.1, 26.1.3-0ubuntu1~20.04.1, 26.1.3-0ubuntu1~20.04.1+esm1, 26.1.3-0ubuntu1~20.04.1+esm2, 26.1.3-0ubuntu1~22.04.1, 26.1.3-0ubuntu1~22.04.1+esm1, 26.1.3-0ubuntu1~24.04.1, 26.1.3-0ubuntu1~24.04.1+esm1, 26.1.5+dfsg1-9ubuntu1, 27.5.1+dfsg4-1ubuntu1, 27.5.1+dfsg4-2ubuntu1, 27.5.1-0ubuntu3~22.04.1, 27.5.1-0ubuntu3~22.04.2, 27.5.1-0ubuntu3~24.04.1, 27.5.1-0ubuntu3~24.04.2, 28.2.2-0ubuntu1, 28.2.2-0ubuntu1~22.04.1, 28.2.2-0ubuntu1~24.04.1, 28.5.2+dfsg4-5ubuntu1, 29.1.2-0ubuntu1, 29.1.3-0ubuntu1, 29.1.3-0ubuntu2, 29.1.3-0ubuntu3, 29.1.3-0ubuntu3~22.04.1, 29.1.3-0ubuntu3~22.04.2, 29.1.3-0ubuntu3~24.04.1, 29.1.3-0ubuntu3~24.04.2, 29.1.3-0ubuntu4, 29.1.3-0ubuntu4.1, 29.1.3-0ubuntu5, 29.1.3-0ubuntu6, 29.7.2-0ubuntu1
- Fixed versions
- Not specified
- CVEs
- CVE-2026-79994
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 03:20 UTC · Revision 1
Source evidence
The guest-to-host Unix-domain socket relay in Docker Sandboxes validates that a socket path is inside an authorized workspace, but later reconnects using the pathname. A malicious guest can replace an intermediate directory with a symlink between validation and connection, causing the host to connect to an arbitrary AF_UNIX socket outside the shared workspace. This can expose data or host-side capabilities provided by the targeted socket.
osv:UBUNTU-CVE-2026-79994
docker.io
Fixed versions: Not specified
docker.io
Fixed versions: Not specified
docker.io
Fixed versions: Not specified
docker.io-app
Fixed versions: Not specified
docker.io
Fixed versions: Not specified
docker.io-app
Fixed versions: Not specified
docker.io
Fixed versions: Not specified
docker.io-app
Fixed versions: Not specified
docker.io
Fixed versions: Not specified
docker.io-app
Fixed versions: Not specified
docker.io
Fixed versions: Not specified
docker.io-app
Fixed versions: Not specified
Complete source record
{
"id": "524a11f8ae815c7bfba2abbb914a112ff7af2632b56dc6b45db2bd9e67203f10",
"url": "https://osv.dev/vulnerability/UBUNTU-CVE-2026-79994",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "UBUNTU-CVE-2026-79994",
"summary": "The guest-to-host Unix-domain socket relay in Docker Sandboxes validates that a socket path is inside an authorized workspace, but later reconnects using the pathname. A malicious guest can replace an intermediate directory with a symlink between validation and connection, causing the host to connect to an arbitrary AF_UNIX socket outside the shared workspace. This can expose data or host-side capabilities provided by the targeted socket.",
"evidence": "osv:UBUNTU-CVE-2026-79994",
"products": [
{
"name": {
"value": "docker.io",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "1.6.2~dfsg1-1ubuntu4",
"evidence": "/affected/0/versions"
},
{
"value": "1.10.2-0ubuntu3",
"evidence": "/affected/0/versions"
},
{
"value": "1.10.2-0ubuntu4",
"evidence": "/affected/0/versions"
},
{
"value": "1.10.3-0ubuntu1",
"evidence": "/affected/0/versions"
},
{
"value": "1.10.3-0ubuntu4",
"evidence": "/affected/0/versions"
},
{
"value": "1.10.3-0ubuntu5",
"evidence": "/affected/0/versions"
},
{
"value": "1.10.3-0ubuntu6",
"evidence": "/affected/0/versions"
},
{
"value": "1.11.2-0ubuntu5~16.04",
"evidence": "/affected/0/versions"
},
{
"value": "1.12.1-0ubuntu13~16.04.1",
"evidence": "/affected/0/versions"
},
{
"value": "1.12.3-0ubuntu4~16.04.2",
"evidence": "/affected/0/versions"
},
{
"value": "1.12.6-0ubuntu1~16.04.1",
"evidence": "/affected/0/versions"
},
{
"value": "1.13.1-0ubuntu1~16.04.2",
"evidence": "/affected/0/versions"
},
{
"value": "17.03.2-0ubuntu2~16.04.1",
"evidence": "/affected/0/versions"
},
{
"value": "18.06.1-0ubuntu1~16.04.2",
"evidence": "/affected/0/versions"
},
{
"value": "18.06.1-0ubuntu1.2~16.04.1",
"evidence": "/affected/0/versions"
},
{
"value": "18.09.2-0ubuntu1~16.04.1",
"evidence": "/affected/0/versions"
},
{
"value": "18.09.5-0ubuntu1~16.04.2",
"evidence": "/affected/0/versions"
},
{
"value": "18.09.7-0ubuntu1~16.04.1",
"evidence": "/affected/0/versions"
},
{
"value": "18.09.7-0ubuntu1~16.04.4",
"evidence": "/affected/0/versions"
},
{
"value": "18.09.7-0ubuntu1~16.04.5",
"evidence": "/affected/0/versions"
},
{
"value": "18.09.7-0ubuntu1~16.04.6",
"evidence": "/affected/0/versions"
},
{
"value": "18.09.7-0ubuntu1~16.04.7",
"evidence": "/affected/0/versions"
},
{
"value": "18.09.7-0ubuntu1~16.04.9+esm1",
"evidence": "/affected/0/versions"
},
{
"value": "18.09.7-0ubuntu1~16.04.9+esm2",
"evidence": "/affected/0/versions"
}
]
},
{
"name": {
"value": "docker.io",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "1.13.1-0ubuntu6",
"evidence": "/affected/1/versions"
},
{
"value": "17.03.2-0ubuntu1",
"evidence": "/affected/1/versions"
},
{
"value": "17.03.2-0ubuntu3",
"evidence": "/affected/1/versions"
},
{
"value": "17.03.2-0ubuntu5",
"evidence": "/affected/1/versions"
},
{
"value": "17.12.1-0ubuntu1",
"evidence": "/affected/1/versions"
},
{
"value": "18.06.1-0ubuntu1~18.04.1",
"evidence": "/affected/1/versions"
},
{
"value": "18.06.1-0ubuntu1.2~18.04.1",
"evidence": "/affected/1/versions"
},
{
"value": "18.09.2-0ubuntu1~18.04.1",
"evidence": "/affected/1/versions"
},
{
"value": "18.09.5-0ubuntu1~18.04.2",
"evidence": "/affected/1/versions"
},
{
"value": "18.09.7-0ubuntu1~18.04.1",
"evidence": "/affected/1/versions"
},
{
"value": "18.09.7-0ubuntu1~18.04.3",
"evidence": "/affected/1/versions"
},
{
"value": "18.09.7-0ubuntu1~18.04.4",
"evidence": "/affected/1/versions"
},
{
"value": "19.03.6-0ubuntu1~18.04.1",
"evidence": "/affected/1/versions"
},
{
"value": "19.03.6-0ubuntu1~18.04.2",
"evidence": "/affected/1/versions"
},
{
"value": "19.03.6-0ubuntu1~18.04.3",
"evidence": "/affected/1/versions"
},
{
"value": "20.10.2-0ubuntu1~18.04.2",
"evidence": "/affected/1/versions"
},
{
"value": "20.10.2-0ubuntu1~18.04.3",
"evidence": "/affected/1/versions"
},
{
"value": "20.10.7-0ubuntu1~18.04.1",
"evidence": "/affected/1/versions"
},
{
"value": "20.10.7-0ubuntu1~18.04.2",
"evidence": "/affected/1/versions"
},
{
"value": "20.10.7-0ubuntu5~18.04.2",
"evidence": "/affected/1/versions"
},
{
"value": "20.10.7-0ubuntu5~18.04.3",
"evidence": "/affected/1/versions"
},
{
"value": "20.10.12-0ubuntu2~18.04.1",
"evidence": "/affected/1/versions"
},
{
"value": "20.10.21-0ubuntu1~18.04.2",
"evidence": "/affected/1/versions"
},
{
"value": "20.10.21-0ubuntu1~18.04.3",
"evidence": "/affected/1/versions"
},
{
"value": "20.10.21-0ubuntu1~18.04.3+esm1",
"evidence": "/affected/1/versions"
},
{
"value": "20.10.21-0ubuntu1~18.04.3+esm2",
"evidence": "/affected/1/versions"
},
{
"value": "20.10.21-0ubuntu1~18.04.3+esm3",
"evidence": "/affected/1/versions"
}
]
},
{
"name": {
"value": "docker.io",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "19.03.2-0ubuntu1",
"evidence": "/affected/2/versions"
},
{
"value": "19.03.6-0ubuntu1",
"evidence": "/affected/2/versions"
},
{
"value": "19.03.8-0ubuntu1",
"evidence": "/affected/2/versions"
},
{
"value": "19.03.8-0ubuntu1.20.04",
"evidence": "/affected/2/versions"
},
{
"value": "19.03.8-0ubuntu1.20.04.1",
"evidence": "/affected/2/versions"
},
{
"value": "19.03.8-0ubuntu1.20.04.2",
"evidence": "/affected/2/versions"
},
{
"value": "20.10.2-0ubuntu1~20.04.2",
"evidence": "/affected/2/versions"
},
{
"value": "20.10.2-0ubuntu1~20.04.3",
"evidence": "/affected/2/versions"
},
{
"value": "20.10.7-0ubuntu1~20.04.1",
"evidence": "/affected/2/versions"
},
{
"value": "20.10.7-0ubuntu1~20.04.2",
"evidence": "/affected/2/versions"
},
{
"value": "20.10.7-0ubuntu5~20.04.1",
"evidence": "/affected/2/versions"
},
{
"value": "20.10.7-0ubuntu5~20.04.2",
"evidence": "/affected/2/versions"
},
{
"value": "20.10.12-0ubuntu2~20.04.1",
"evidence": "/affected/2/versions"
},
{
"value": "20.10.21-0ubuntu1~20.04.1",
"evidence": "/affected/2/versions"
},
{
"value": "20.10.21-0ubuntu1~20.04.2",
"evidence": "/affected/2/versions"
},
{
"value": "20.10.21-0ubuntu1~20.04.4",
"evidence": "/affected/2/versions"
},
{
"value": "20.10.21-0ubuntu1~20.04.5",
"evidence": "/affected/2/versions"
},
{
"value": "20.10.21-0ubuntu1~20.04.6",
"evidence": "/affected/2/versions"
},
{
"value": "20.10.21-0ubuntu1~20.04.6+esm1",
"evidence": "/affected/2/versions"
},
{
"value": "20.10.21-0ubuntu1~20.04.6+esm2",
"evidence": "/affected/2/versions"
}
]
},
{
"name": {
"value": "docker.io-app",
"evidence": "/affected/3/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "20.10.25-0ubuntu1~20.04.1",
"evidence": "/affected/3/versions"
},
{
"value": "20.10.25-0ubuntu1~20.04.2",
"evidence": "/affected/3/versions"
},
{
"value": "24.0.5-0ubuntu1~20.04.1",
"evidence": "/affected/3/versions"
},
{
"value": "24.0.7-0ubuntu2~20.04.1",
"evidence": "/affected/3/versions"
},
{
"value": "26.1.3-0ubuntu1~20.04.1",
"evidence": "/affected/3/versions"
},
{
"value": "26.1.3-0ubuntu1~20.04.1+esm1",
"evidence": "/affected/3/versions"
},
{
"value": "26.1.3-0ubuntu1~20.04.1+esm2",
"evidence": "/affected/3/versions"
}
]
},
{
"name": {
"value": "docker.io",
"evidence": "/affected/4/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "20.10.7-0ubuntu5",
"evidence": "/affected/4/versions"
},
{
"value": "20.10.7-0ubuntu7",
"evidence": "/affected/4/versions"
},
{
"value": "20.10.12-0ubuntu1",
"evidence": "/affected/4/versions"
},
{
"value": "20.10.12-0ubuntu2",
"evidence": "/affected/4/versions"
},
{
"value": "20.10.12-0ubuntu3",
"evidence": "/affected/4/versions"
},
{
"value": "20.10.12-0ubuntu3+gke1.24.1",
"evidence": "/affected/4/versions"
},
{
"value": "20.10.12-0ubuntu4",
"evidence": "/affected/4/versions"
},
{
"value": "20.10.21-0ubuntu1~22.04.2",
"evidence": "/affected/4/versions"
},
{
"value": "20.10.21-0ubuntu1~22.04.3",
"evidence": "/affected/4/versions"
},
{
"value": "20.10.21-0ubuntu1~22.04.5",
"evidence": "/affected/4/versions"
},
{
"value": "20.10.21-0ubuntu1~22.04.6",
"evidence": "/affected/4/versions"
},
{
"value": "20.10.21-0ubuntu1~22.04.7",
"evidence": "/affected/4/versions"
},
{
"value": "20.10.21-0ubuntu1~22.04.7+esm1",
"evidence": "/affected/4/versions"
},
{
"value": "20.10.21-0ubuntu1~22.04.7+esm2",
"evidence": "/affected/4/versions"
},
{
"value": "20.10.21-0ubuntu1~22.04.8",
"evidence": "/affected/4/versions"
},
{
"value": "20.10.21-0ubuntu1~22.04.8+esm1",
"evidence": "/affected/4/versions"
}
]
},
{
"name": {
"value": "docker.io-app",
"evidence": "/affected/5/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "20.10.25-0ubuntu1~22.04.1",
"evidence": "/affected/5/versions"
},
{
"value": "20.10.25-0ubuntu1~22.04.2",
"evidence": "/affected/5/versions"
},
{
"value": "24.0.5-0ubuntu1~22.04.1",
"evidence": "/affected/5/versions"
},
{
"value": "24.0.7-0ubuntu2~22.04.1",
"evidence": "/affected/5/versions"
},
{
"value": "26.1.3-0ubuntu1~22.04.1",
"evidence": "/affected/5/versions"
},
{
"value": "26.1.3-0ubuntu1~22.04.1+esm1",
"evidence": "/affected/5/versions"
},
{
"value": "27.5.1-0ubuntu3~22.04.1",
"evidence": "/affected/5/versions"
},
{
"value": "27.5.1-0ubuntu3~22.04.2",
"evidence": "/affected/5/versions"
},
{
"value": "28.2.2-0ubuntu1~22.04.1",
"evidence": "/affected/5/versions"
},
{
"value": "29.1.3-0ubuntu3~22.04.1",
"evidence": "/affected/5/versions"
},
{
"value": "29.1.3-0ubuntu3~22.04.2",
"evidence": "/affected/5/versions"
}
]
},
{
"name": {
"value": "docker.io",
"evidence": "/affected/6/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "20.10.24+dfsg1-1ubuntu2",
"evidence": "/affected/6/versions"
},
{
"value": "20.10.25+dfsg1-2ubuntu1",
"evidence": "/affected/6/versions"
},
{
"value": "20.10.25+dfsg1-2ubuntu1+esm1",
"evidence": "/affected/6/versions"
},
{
"value": "20.10.25+dfsg1-2ubuntu1+esm2",
"evidence": "/affected/6/versions"
},
{
"value": "20.10.25+dfsg1-2ubuntu1.24.04.1",
"evidence": "/affected/6/versions"
},
{
"value": "20.10.25+dfsg1-2ubuntu1.24.04.1+esm1",
"evidence": "/affected/6/versions"
}
]
},
{
"name": {
"value": "docker.io-app",
"evidence": "/affected/7/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "24.0.5-0ubuntu1",
"evidence": "/affected/7/versions"
},
{
"value": "24.0.7-0ubuntu1",
"evidence": "/affected/7/versions"
},
{
"value": "24.0.7-0ubuntu2",
"evidence": "/affected/7/versions"
},
{
"value": "24.0.7-0ubuntu3",
"evidence": "/affected/7/versions"
},
{
"value": "24.0.7-0ubuntu4",
"evidence": "/affected/7/versions"
},
{
"value": "24.0.7-0ubuntu4.1",
"evidence": "/affected/7/versions"
},
{
"value": "26.1.3-0ubuntu1~24.04.1",
"evidence": "/affected/7/versions"
},
{
"value": "26.1.3-0ubuntu1~24.04.1+esm1",
"evidence": "/affected/7/versions"
},
{
"value": "27.5.1-0ubuntu3~24.04.1",
"evidence": "/affected/7/versions"
},
{
"value": "27.5.1-0ubuntu3~24.04.2",
"evidence": "/affected/7/versions"
},
{
"value": "28.2.2-0ubuntu1~24.04.1",
"evidence": "/affected/7/versions"
},
{
"value": "29.1.3-0ubuntu3~24.04.1",
"evidence": "/affected/7/versions"
},
{
"value": "29.1.3-0ubuntu3~24.04.2",
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"https://docs.docker.com/ai/sandboxes/",
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"https://github.com/docker/sailor/pull/2021",
"https://github.com/docker/sandboxes/pull/5342",
"https://github.com/docker/sbx-releases/releases/tag/v0.42.0"
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},
"source_id": "core-osv",
"document_id": 361149,
"published_at": "2026-09-15T21:16:00+00:00"
}