# CVE-2026-78122

## Summary

- **CVE ID:** CVE-2026-78122
- **Severity:** HIGH
- **CVSS Score:** 8.3 (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)
- **CWE:** CWE-1220
- **Published:** Aug 22, 2026
- **Last Modified:** Aug 29, 2026

## 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.

## Affected Products

- Tecnativa — docker-socket-proxy (0)

## References

- [CNA](https://github.com/Tecnativa/docker-socket-proxy/issues/182)
- [CNA](https://github.com/Tecnativa/docker-socket-proxy)
- [CNA](https://github.com/Tecnativa/docker-socket-proxy/blob/v0.5.0/haproxy.cfg#L49-L61)
- [CNA](https://github.com/Tecnativa/docker-socket-proxy/pull/183)
- [CNA](https://gist.github.com/nedlir/e4f52f88a757f02c67db1fd5dd70d732)
- [CNA](https://www.vulncheck.com/advisories/docker-socket-proxy-through-insufficient-access-control-granularity-exposes-container-filesystems)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.32%
- **EPSS Percentile:** 24.9

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-10._