5.9
Medium
CVE-2026-101998 Docker Sandboxes could fail open while masking credentials in protected proxy responses
Description
Docker Sandboxes could fail open while masking credentials in protected proxy responses. When a response-body read returned data together with an error, affected handlers could forward unmasked bytes. Code inside an authorized sandbox could use this to recover host-managed OAuth access and refresh tokens or a derived Anthropic API key intended to remain outside the sandbox.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Docker Sandboxes 0.21 | 0.21.0 → < 0.47.0 | 0.47.0 |
Other CVEs of Docker Sandboxes
The 11 CVEs of Docker Sandboxes →
CVE-2026-121614
Docker Sandboxes host Git executes repository-controlled programs
7.1
High
CVE-2026-103916
Docker Sandboxes sbx cp does not safely confine host-side paths to a shared workspace
8.4
High
CVE-2026-105452
Docker Sandboxes could forward a client-supplied credential alongside a credential injected by the host egress proxy
5.9
Medium
CVE-2026-105570
Docker Sandboxes compared OAuth token-endpoint hostnames case-sensitively when deciding whether to mask managed…
6.7
Medium