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.
Published: 2026-10-08
Score: 5.9 Medium
EPSS: n/a
KEV: No
AI Analysis

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Remediation

Vendor Solution

Upgrade to Docker Sandboxes 0.47.0 or later.

Tracking

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Advisories

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History

Thu, 08 Oct 2026 19:00:00 +0000

Type Values Removed Values Added
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.
Title Fail-open response masking in Docker Sandboxes can expose proxy-managed credentials
First Time appeared Docker
Docker docker Sandboxes
Weaknesses CWE-636
CPEs cpe:2.3:a:docker:docker_sandboxes:*:*:*:*:*:*:*:*
Vendors & Products Docker
Docker docker Sandboxes
References
Metrics cvssV4_0

{'score': 5.9, 'vector': 'CVSS:4.0/AV:A/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N'}

Subscriptions

Docker Docker Sandboxes
cve-icon MITRE

Status: PUBLISHED

Assigner: Docker

Published:

Updated: 2026-10-08T19:27:49.633Z

Reserved: 2026-09-28T16:32:15.536Z

Link: CVE-2026-101998

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-10-08T19:16:56.400

Modified: 2026-10-08T19:16:56.400

Link: CVE-2026-101998

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses
  • CWE-636

    Not Failing Securely ('Failing Open')