{"id":"CVE-2026-78122","summary":"docker-socket-proxy through 0.5.0 Insufficient Access Control Granularity Exposes Container Filesystems","details":"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.","modified":"2026-08-30T03:48:20.527981220Z","published":"2026-08-22T23:06:32.896Z","database_specific":{"cwe_ids":["CWE-1220"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/78xxx/CVE-2026-78122.json","cna_assigner":"VulnCheck"},"references":[{"type":"WEB","url":"https://hub.docker.com/r/tecnativa/docker-socket-proxy"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/78xxx/CVE-2026-78122.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-78122"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/docker-socket-proxy-through-insufficient-access-control-granularity-exposes-container-filesystems"},{"type":"REPORT","url":"https://github.com/Tecnativa/docker-socket-proxy/issues/182"},{"type":"FIX","url":"https://github.com/Tecnativa/docker-socket-proxy/pull/183"},{"type":"PACKAGE","url":"https://github.com/Tecnativa/docker-socket-proxy"},{"type":"ARTICLE","url":"https://github.com/Tecnativa/docker-socket-proxy/blob/v0.5.0/haproxy.cfg#L49-L61"},{"type":"EVIDENCE","url":"https://gist.github.com/nedlir/e4f52f88a757f02c67db1fd5dd70d732"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/tecnativa/docker-socket-proxy","events":[{"introduced":"0"},{"last_affected":"2e118a0c0c66e1831f68b7afd6d49ad3e2f96b5d"}],"database_specific":{"source":"AFFECTED_FIELD","extracted_events":[{"introduced":"0"},{"last_affected":"0.5.0"}]}}],"versions":["v0.5.0","v0.4.2","v0.4.1","v0.4.0","v0.3.0","v0.2.0","v0.1.2","v0.1.1","v0.1.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-78122.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"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"}]}