CVE-2026-103916

Description

Docker Sandboxes sbx cp does not safely confine host-side paths to a shared workspace. A malicious sandbox can create or replace a workspace symlink so that a later user-initiated copy reads a host file outside the workspace into the sandbox or writes sandbox-controlled data to a host path outside the workspace with the invoking user's permissions.

Overview

State: PUBLISHED
Assigner (CNA): Docker
CVSS severity: HIGH
CVSS score: 8.4 / 10
CVSS vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Effective score: 8.4 / 10 HIGH source: CNA overview
CWE(s): CWE-59
Reserved: 2026-10-01
Published: 2026-11-03 16:19 UTC
Last updated: 2026-11-03 17:43 UTC
Source: https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/103xxx/CVE-2026-103916.json
Linked Threat: CVE-2026-103916 — Docker Sandboxes sbx cp follows workspace symlinks outside the authorized host directory

NVD triage scoring NVD CVE 2.0

Layer NVD adds on top of the CNA's CVE record — published / last-modified timestamps, exploitability / impact subscores, and the FIRST.org EPSS probability that this CVE will be exploited in the wild in the next 30 days.

NVD published: 2026-11-03 17:17:52 UTC
NVD last modified: 2026-11-03 20:32:50 UTC

European Union Vulnerability Database ENISA EUVD

ENISA's official EU repository for curated vulnerability intelligence. Carries a separate identifier (EUVD-YYYY-NNNN) and frequently exposes an earlier-published description + CVSS than NVD does.

EUVD ID: EUVD-2026-116029
Assigner: Docker
Published: Nov 3, 2026, 4:19:03 PM
Updated: Nov 3, 2026, 5:43:23 PM
EUVD base score (CVSS 4.0): 8.4 / 10
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
EUVD-reported EPSS: 0.0000
Vendors: Docker
Products: Docker Sandboxes (0.28.0 <0.51.0)
Aliases: GHSA-82h2-77xp-45m9

ENISA description: Docker Sandboxes sbx cp does not safely confine host-side paths to a shared workspace. A malicious sandbox can create or replace a workspace symlink so that a later user-initiated copy reads a host file outside the workspace into the sandbox or writes sandbox-controlled data to a host path outside the workspace with the invoking user's permissions.

EUVD references (3)

Affected products (1)

Vendor	Product	Versions	Platforms
Docker	Docker Sandboxes	`0.28.0` (affected)	MacOS, Linux, Windows

Vendor references (3)

References embedded in the original CVE record by the assigning CNA.

https://docs.docker.com/ai/sandboxes/ product
https://docs.docker.com/ai/sandboxes/security/isolation/ technical-description
https://github.com/docker/sbx-releases/releases/tag/v0.51.0 release-notes

Web references (0)

DuckDuckGo results ranked by threat-intel / vendor advisory domains. Generated by the 🔎 Find references (web) button above — same flow as the Remediations search.

No web references attached yet.

NVD-tagged references (3)

Reference list NVD curates from the CNA record, vendor advisories, and third-party reports. The tag chips below are NVD's analyst-assigned categories.

https://docs.docker.com/ai/sandboxes/ security@docker.com
https://docs.docker.com/ai/sandboxes/security/isolation/ security@docker.com
https://github.com/docker/sbx-releases/releases/tag/v0.51.0 security@docker.com

Remediations (10)

Remediations are stored against the linked Threat row; the list below is deduplicated across both pages.

October 2026 Critical Patch Update Released | security

web:blogs.oracle.com

For more information about the Critical Patch Update program, see the security vulnerability remediation practices page located on the Oracle Trust Center.

2026-11-04 09:58 UTC
CVE Vulnerabilities 2026: Critical Flaws & Fixes Hub

web:cyberupdates365.com

Track critical CVE vulnerabilities 2026 with verified enterprise patch guides. Fix zero-days across VMware, WordPress, Windows, and cloud infrastructure.

2026-11-04 09:58 UTC
2026 Catalog Release History - Patch My PC

web:patchmypc.com

You can find the production release history below for 2026 . View the 2025 Catalog Release History.

2026-11-04 09:58 UTC
Microsoft Patch Tracker (October 2026): Exploit-Ranked | Senserva

web:senserva.com

Every Microsoft security patch (KB) and the CVEs it fixes, with severity, CVSS, and CISA KEV status. Cross-linked to the CVE reference.

2026-11-04 09:58 UTC
[Security Advisory] October 2026 CVE Advisory Notification

web:support.servicenow.com

On October 29, 2026 , ServiceNow issued CVE - 2026 -103093, CVE - 2026 -103094, and CVE - 2026 -6877. Each of these security issues was identified through internal security testing, customer security assessments, or reports submitted through ServiceNow's responsible disclosure and bug bounty programs and was remediated independently. For security issues identified through responsible disclosure ...

2026-11-04 09:58 UTC
CVE-2026-103916 - Docker Sandbox Path Confinement Flaw…

web:vulmon.com

Vulnerability Summary A path confinement flaw in Docker Sandboxes' sbx cp functionality allows a malicious sandbox to manipulate workspace symlinks. This enables a later user-initiated copy operation to read host files outside the designated workspace into the sandbox, or write sandbox data to host paths outside the workspace, using the invoking user's permissions. Subscribe to Docker Sandboxes

2026-11-04 09:58 UTC
What Is CVE Remediation in 2026? - aikido.dev

web:www.aikido.dev

None of these is a clean fix , which is why the decision on how to remediate depends on knowing what package versions are running in production and why. This post will cover how AI has accelerated CVE detection and discovery, the upgrade trap, what CVE remediation actually involves in 2026 , and how to solve the CVE remediation problem.

2026-11-04 09:58 UTC
Docker Sandboxes vulnerability lets AI agents access sensitive files ...

web:www.endorlabs.com

Docker Sandboxes vulnerability lets AI agents access sensitive files outside their sandbox ( CVE-2026-103916 ) I discovered a vulnerability in Docker Sandboxes that lets AI coding agents bypass file access restrictions, potentially exposing cloud credentials and other sensitive files on a developer's computer through a routine copy command.

2026-11-04 09:58 UTC
Oracle Critical Patch Update Advisory - July 2026

web:www.oracle.com

This Critical Patch Update contains 1448 new security patches across the product families listed below. Please note that a My Oracle Support (MOS) note summarizing the content of this Critical Patch Update and other Oracle Software Security Assurance activities is located at July 2026 Critical Patch Update: Executive Summary and Analysis.

2026-11-04 09:58 UTC
Oracle Critical Security Patch Update Advisory - September 2026

web:www.oracle.com

Prior Critical Patch Update and Critical Security Patch Update advisories should be reviewed for information regarding earlier published security patches. Refer to Critical Patch Updates, Critical Security Patch Updates, Security Alerts and Bulletins for information about Oracle Security advisories.

2026-11-04 09:58 UTC

AI Forensic Analysis

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Raw JSON

The full cvelistV5 record. Download as CVE-2026-103916.json.

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                  },
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