TI-2026-69704 Aliases CVE-2026-101998

Fail-open response masking in Docker Sandboxes exposes credentials

LOW 26CWE-636Published 2026-10-08 · Updated 2026-10-08

Key facts

Attack vector: Adjacent network
Privileges required: Low
User interaction: None
Attack complexity: Low
Attack requirements: Present
Impact type: —
Confidentiality · integrity · availability: High · None · None
Fix status: Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA.

Summary

Docker Sandboxes from 0.21.0 before 0.47.0 fail open when masking credentials in protected proxy responses. When a response-body read returns data together with an error, affected handlers forward unmasked bytes (CWE-636). Code inside an authorized sandbox with low privileges can recover host-managed OAuth access and refresh tokens or a derived Anthropic API key meant to stay outside the sandbox.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Description from the CNA

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00163 5th percentileScored 2026-11-07

Fix Fixed Docker Sandboxes (Docker): 0.47.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Docker	Docker Sandboxes	0.21.0 to before 0.47.0	0.47.0	Patch available	CNA

Docker Sandboxes VendorDocker Affected 0.21.0 to before 0.47.0 Fixed in 0.47.0 Patch available CNA

CPE names CNA · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:docker:docker_sandboxes::::::::	—	—	Docker

cpe:2.3:a:docker:docker_sandboxes:*:*:*:*:*:*:*:* Versions — — ·Docker

Remediation

Update Docker Sandboxes to 0.47.0, the fixed version.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Fix · CNA Docker Sandboxes (Docker) Fixed in 0.47.0

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

Release · 2026-10-08
Docker Sandboxes 0.47.0
2 records Highest priority Priority LOW 2 LOW
Other records, highest priority first
- TI-2026-69706 Case-sensitive host check exposes Docker Sandboxes OAuth tokensPriority LOW 29
Show all 2 records →

Timeline

2026-10-09 Threatist record created from CVE-2026-101998

References

Other 2

TI-2019-11833 Docker Desktop Community Edition before 2.1.0.1 allows local users to gain privileges by… KEVCVSS 3.1HIGH 7.8
TI-2019-04061 runc through 1.0-rc6, as used in Docker before 18.09.2 and other products, allows… CVSS 3.1HIGH 8.6
TI-2025-08316 Docker Desktop allows unauthenticated access to Docker Engine API from containers CVSS 4.0CRITICAL 9.3
TI-2025-02823 Elevation of Privilege in Docker Desktop for Windows during Upgrade due to Insecure Directory Deletion CVSS 4.0HIGH 7.3
TI-2026-14229 Tar extraction in moby/go-archive can write outside the destination directory via link following CVSS 4.0HIGH 7.1
TI-2023-21271 Docker Machine through 0.16.2 allows an attacker, who has control of a worker node, to… CVSS 3.1MEDIUM 6.5

See all 132 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences