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CVE-2026-78122

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

CVSS 4.0 8.3 HIGHCVSS 3.1 7.4 HIGHCheck source for fixed versionsKEV status unknown

Original advisory

cve-program · CVE-2026-78122

Published

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.

Read the publisher's advisory

Affected versions, risk and source history

cve-program · CVE-2026-78122

Published

docker-socket-proxy

https://hub.docker.com/r/tecnativa/docker-socket-proxy

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Tecnativa",
                    "product": "docker-socket-proxy",
                    "defaultStatus": "unaffected",
                    "packageURL": "pkg:docker/tecnativa/docker-socket-proxy",
                    "collectionURL": "https://hub.docker.com/r/tecnativa/docker-socket-proxy",
                    "versions": [
                        {
                            "version": "0",
                            "lessThanOrEqual": "0.5.0",
                            "status": "affected",
                            "versionType": "semver"
                        }
                    ]
                }

Original source record · Cite this exact observation · Complete original publisher JSON