{"id":"CVE-2026-103916","aliases":["EUVD-2026-116029","GHSA-82h2-77xp-45m9"],"status":"published","title":"Docker Sandboxes sbx cp follows workspace symlinks outside the authorized host directory","description":"Docker Sandboxes sbx cp does not safely confine host-side paths to a shared workspace. A malicious sandbox can create or replace a workspace symlink so that a later user-initiated copy reads a host file outside the workspace into the sandbox or writes sandbox-controlled data to a host path outside the workspace with the invoking user's permissions.","severity":{"version":"4.0","score":8.4,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.0021,"percentile":0.1133,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-59"],"published":"2026-11-03T16:19:03Z","modified":"2026-11-04T02:47:06Z","products":[{"vendor":"docker","product":"docker sandboxes"}],"references":[{"url":"https://docs.docker.com/ai/sandboxes/","tags":["product","web"]},{"url":"https://docs.docker.com/ai/sandboxes/security/isolation/","tags":["technical-description","article"]},{"url":"https://github.com/docker/sbx-releases/releases/tag/v0.51.0","tags":["release-notes","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-103916","tags":["advisory"]},{"url":"https://docs.docker.com/ai/sandboxes"},{"url":"https://docs.docker.com/ai/sandboxes/security/isolation"},{"url":"https://github.com/advisories/GHSA-82h2-77xp-45m9"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/103xxx/CVE-2026-103916.json","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2026-103916","title":"Docker Sandboxes sbx cp follows workspace symlinks outside the authorized host directory","description":"Docker Sandboxes sbx cp does not safely confine host-side paths to a shared workspace. A malicious sandbox can create or replace a workspace symlink so that a later user-initiated copy reads a host file outside the workspace into the sandbox or writes sandbox-controlled data to a host path outside the workspace with the invoking user's permissions.","status":"published","published":"2026-11-03T16:19:03.726Z","modified":"2026-11-03T17:43:23.309Z","cvss":[{"version":"4.0","score":8.4,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","level":"high","assessor":"cna"}],"cwes":["CWE-59"],"updated_at":"2026-11-03T19:01:22.66055Z"}],"euvd":[{"id":"EUVD-2026-116029","description":"Docker Sandboxes sbx cp does not safely confine host-side paths to a shared workspace. A malicious sandbox can create or replace a workspace symlink so that a later user-initiated copy reads a host file outside the workspace into the sandbox or writes sandbox-controlled data to a host path outside the workspace with the invoking user's permissions.","status":"published","published":"2026-11-03T16:19:03Z","modified":"2026-11-03T17:43:23Z","cvss":[{"version":"4.0","score":8.4,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","level":"high"}],"updated_at":"2026-11-03T21:20:14.442067Z"}],"ghsa":[{"id":"GHSA-82h2-77xp-45m9","title":"Docker Sandboxes sbx cp does not safely confine host-side paths to a shared workspace. A...","description":"Docker Sandboxes sbx cp does not safely confine host-side paths to a shared workspace. A malicious sandbox can create or replace a workspace symlink so that a later user-initiated copy reads a host file outside the workspace into the sandbox or writes sandbox-controlled data to a host path outside the workspace with the invoking user's permissions.","status":"published","published":"2026-11-03T18:31:07Z","modified":"2026-11-03T18:31:17Z","cvss":[{"version":"4.0","score":8.4,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"high"}],"cwes":["CWE-59"],"updated_at":"2026-11-03T19:01:33.107181Z"}],"nvd":[{"id":"CVE-2026-103916","description":"Docker Sandboxes sbx cp does not safely confine host-side paths to a shared workspace. A malicious sandbox can create or replace a workspace symlink so that a later user-initiated copy reads a host file outside the workspace into the sandbox or writes sandbox-controlled data to a host path outside the workspace with the invoking user's permissions.","status":"published","published":"2026-11-03T17:17:52.847Z","modified":"2026-11-03T20:32:50.687Z","cvss":[{"version":"4.0","score":8.4,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"high","assessor":"secondary"}],"cwes":["CWE-59"],"updated_at":"2026-11-03T22:58:51.822037Z"}],"osv":[{"id":"CVE-2026-103916","title":"Docker Sandboxes sbx cp follows workspace symlinks outside the authorized host directory","description":"Docker Sandboxes sbx cp does not safely confine host-side paths to a shared workspace. A malicious sandbox can create or replace a workspace symlink so that a later user-initiated copy reads a host file outside the workspace into the sandbox or writes sandbox-controlled data to a host path outside the workspace with the invoking user's permissions.","status":"published","published":"2026-11-03T16:19:03.726Z","modified":"2026-11-07T02:48:16.559617056Z","cvss":[{"version":"4.0","score":8.4,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","level":"high"}],"cwes":["CWE-59"],"updated_at":"2026-11-07T03:07:59.573031Z"}]}}