CVE-2026-78122

High

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.

SeverityHigh

CVSS7.4

Exploit probability—

ProductTecnativa Docker-socket-proxy

PublishedAug 22, 2026

First seenAug 22, 2026

Weakness typeCWE-1220CWE-1220

How to fix

Patches

github.com/Tecnativa/docker-socket-proxy/pull/183

Affected products

Product	Affected versions	Fixed in
Tecnativa docker-socket-proxy	v ≤ 0.5.0	—

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