CVE-2026-105570 — Docker Sandboxes OAuth response masking could be bypassed with a case-variant token host
Docker Sandboxes compared OAuth token-endpoint hostnames case-sensitively when deciding whether to mask managed credential responses, while request routing treated DNS hostnames…
Published: 2026-10-08 · CVSS: 6.7 · CVSS 4.0
Docker Sandboxes compared OAuth token-endpoint hostnames case-sensitively when deciding whether to mask managed credential responses, while request routing treated DNS hostnames case-insensitively. Untrusted code inside a sandbox could use a case-variant hostname to reach the genuine provider endpoint while bypassing response masking. If a user completed the OAuth flow, the provider's access and refresh tokens could be returned unmasked to the sandbox, exposing host-managed credentials.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7