CVE-2026-78122

docker-socket-proxy through 0.5.0 Insufficient Access Control Granularity Exposes Container Filesystems

Published Aug 22, 2026 CVSS 4.0 · 8.3 High EPSS < 1% KEV · Not listed
Description
docker-socket-proxy fails to properly gate read endpoints in the /containers Docker API namespace when the CONTAINERS environment variable is set. Attackers can use GET requests to /containers/{id}/archive, /containers/{id}/export, /containers/{id}/logs, and /containers/{id}/top to read arbitrary files and download entire container filesystems as tar archives.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Tecnativa
Tecnativa docker-socket-proxy
Vendors & Products Tecnativa
Tecnativa docker-socket-proxy
Type Values Removed Values Added
Description docker-socket-proxy fails to properly gate read endpoints in the /containers Docker API namespace when the CONTAINERS environment variable is set. Attackers can use GET requests to /containers/{id}/archive, /containers/{id}/export, /containers/{id}/logs, and /containers/{id}/top to read arbitrary files and download entire container filesystems as tar archives.
Title docker-socket-proxy through 0.5.0 Insufficient Access Control Granularity Exposes Container Filesystems
Weaknesses CWE-1220
References
Metrics cvssV3_1

{'score': 7.4, 'vector': 'CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N'}

cvssV4_0

{'score': 8.3, 'vector': 'CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
VulnCheck
Published
Updated
Sep 24, 2026, 2:19 PM
Reserved
Aug 22, 2026, 10:56 PM
Status
Deferred
Published
Aug 22, 2026, 11:16 PM
Modified
Oct 12, 2026, 4:10 PM