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TI-2026-69705 Aliases CVE-2026-105452

Docker Sandboxes egress proxy forwards unrecognized credentials

Priority LOW 25CWE-200Published · Updated

Key facts

Attack vector
Local
Privileges required
None
User interaction
None
Attack complexity
Low
Attack requirements
Present
Impact type
Information disclosure
Confidentiality · integrity · availability
High · None · None
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-200.

Summary

Docker Sandboxes from 0.21.0 before 0.43.0 can forward a client-supplied credential alongside the credential injected by the host egress proxy. The proxy removes alternate credentials only when their values match known sentinel values, so an unrecognized credential passes through (CWE-200). Untrusted code running in an authorized sandbox can use this to authenticate requests to an attacker-controlled account at affected upstream services and expose data included in those requests.

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

Description from the CNA

Docker Sandboxes could forward a client-supplied credential alongside a credential injected by the host egress proxy. The proxy removed alternate credentials only when their values matched known sentinel values, so untrusted code in an authorized sandbox could supply an unrecognized credential in another supported authentication header. For affected upstream services, this could authenticate the request to an attacker-controlled account and expose data included in the request.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00143 3rd percentileScored 2026-11-07
Fix Fixed Docker Sandboxes (Docker): 0.43.0

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

VendorProductAffected versionsFixed inStatusSource
DockerDocker Sandboxes0.21.0 to before 0.43.00.43.0Patch availableCNA
  • Docker Sandboxes VendorDocker Affected 0.21.0 to before 0.43.0 Fixed in 0.43.0 Patch available CNA

CPE names CNA · 1

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

Remediation

Upgrade Docker Sandboxes to 0.43.0, the fixed version.

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

  • Fix · CNA Docker Sandboxes (Docker) Fixed in 0.43.0

Timeline

  1. 2026-10-09 Threatist record created from CVE-2026-105452

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