CVE-2026-103916: Docker Sandboxes · Link Following
Affects Docker SandboxesSource CVE Database V5
Not known to be exploited · CVSS 8.4 High : upgrade to 0.51.0 soon.
Data as of 3 Nov 2026, 16:43 UTC
Thin evidence
One scorer or none| CNA (Docker) | CVSS 4.0 | 8.4 |
|---|
- Patch
- Available – fixed in 0.51.0
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:NExploitation evidence
Disclosed: evidence found.
CVE published 3 Nov 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 3 Nov 2026.
What to do
Upgrade Docker Sandboxes to 0.51.0.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| DockerDocker Sandboxes | Affected
| Fixed in
|
CPE configurations (1)
cpe:2.3:a:docker:docker_sandboxes:*:*:*:*:*:*:*:*
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
Upgrade Docker Sandboxes to version 0.51.0 or later, where this vulnerability has been fixed. No other mitigation steps are indicated by the vendor advisory.
Description
CVE-2026-103916 is a high-severity vulnerability in Docker Sandboxes affecting versions from 0.28.0 up to but not including 0.51.0. The issue involves unsafe handling of host-side paths in the sbx cp command, allowing a malicious sandbox to manipulate symlinks in the shared workspace. This can lead to reading or writing files outside the intended workspace with the invoking user's permissions.