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.

Attack Vector Adjacent Network

Attack Complexity Low

Privileges Required Low

Attack Requirements Present

User Interaction None

Vulnerable System Confidentiality Impact High

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Exploitation none

Automatable no

Technical Impact partial

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Docker Docker Sandboxes unaffected
Version Status Constraints
0.21.0 affected < 0.47.0

No data.

No data.

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Project Subscriptions

Vendors Products
Docker Subscribe
Docker Sandboxes Subscribe
Advisories

No advisories yet.

Fixes

Solution

Upgrade to Docker Sandboxes 0.47.0 or later.

Workaround

No workaround given by the vendor.

References
Link Providers
https://docs.docker.com/ai/sandboxes/ cve-icon cve-icon
https://docs.docker.com/ai/sandboxes/configuration/credentials/#how-credential-injection-works cve-icon cve-icon
History

Thu, 08 Oct 2026 20:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

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'}

Projects

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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

Updated: 2026-10-08T19:27:45.798Z

cve-icon NVD

Status : Awaiting Analysis

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

Modified: 2026-10-08T20:46:35.260

Link: CVE-2026-101998

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-08T20:30:18Z

Weaknesses