CVE-2026-126330: Docker Sandboxes · Operation on a Resource after Expiration or Release
Affects Docker SandboxesSource CVE Database V5
Not known to be exploited · CVSS 2.4 Low : upgrade to 0.53.0 when convenient.
Data as of 12 Nov 2026, 16:07 UTC
Thin evidence
One scorer or none| CNA (Docker) | CVSS 4.0 | 2.4 |
|---|
- Patch
- Available – fixed in 0.53.0
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:A/VC:L/VI:N/VA:N/SC:N/SI:N/SA:NExploitation evidence
Disclosed: evidence found.
CVE published 12 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 12 Nov 2026.
What to do
Upgrade Docker Sandboxes to 0.53.0.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| DockerDocker Sandboxes | Affected
| Fixed in
|
AI-suggested
Upgrade Docker Sandboxes to version 0.53.0 or later, where this issue is fixed. No other mitigation is required as the vulnerability is resolved in this official fix.
Description
CVE-2026-126330 is a vulnerability in Docker Sandboxes where the daemon can silently republish a sandbox service after its host-port mapping is removed. Although the active binding is removed, the original publication request remains, allowing the service to be published again on a new host port after a port change or sandbox restart. This affects both TCP and UDP mappings and is limited to the original bind address, which defaults to loopback. The issue is fixed in Docker Sandboxes version 0.53.0.