CVSS 4.0
2.4 lowCVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:A/VC:L/VI:N/VA:N/SC:N/SI:N/SA:NCVE-2026-126330 Docker Sandboxes restores removed automatically assigned port publications
Low (2.4) in docker docker sandboxes. EPSS 0.1% estimated probability of exploitation activity in the next 30 days.
On this page
Docker Sandboxes can silently republish a sandbox service after an operator removes its automatically assigned host-port mapping. The daemon removes the active binding but retains the original publication request, allowing a later port change or sandbox restart to publish the service again on a new host port. An attacker able to reach the restored endpoint may regain access to the service. Both TCP and UDP mappings are affected. Exposure is limited to the original bind address, which defaults to loopback. The issue is fixed in version 0.53.0.
Severity
- EPSS
- 0.1% estimated probability of exploitation activity in the next 30 days; 2nd percentile. Scored 2026-11-13. A forecast for this CVE across the internet, not for your own systems.
- CWE
- CWE-672 Operation on a Resource after Expiration or Release
- Published
- Modified
- Assigned by
- Docker (CNA)
- NVD analysis
- Awaiting analysis
- Record from
- the NVD, synced
Ask an AI about this CVE
Show the prompt
Explain CVE-2026-126330 for an engineer deciding whether to act. Use https://cve.bz/api/public/cves/CVE-2026-126330?via=ask-ai-copy and https://cve.bz/cve/CVE-2026-126330?via=ask-ai-copy as the source of truth: what is affected and which versions fix it, whether it is in CISA KEV, public exploits, and its EPSS (an internet-wide 30-day estimate of exploitation activity, not a forecast for my systems). If they give no fixed versions, use the CVE record https://cveawg.mitre.org/api/cve/CVE-2026-126330 or the vendor advisory, not third-party mirrors. Tell me how to check whether I am affected and how to verify a fix. Cite the sources and say where they are uncertain.Opens a third-party assistant; its answer is its own, not cve.bz's. The prompt holds only this CVE's id and public links.
Badge for a README or a site
An image that stays current: it is drawn from the data each time it is fetched (a host that proxies images, as GitHub does, may show its copy for a while). Markdown:
[](https://cve.bz/cve/CVE-2026-126330)
HTML:
<a href="https://cve.bz/cve/CVE-2026-126330"><img src="https://cve.bz/cve/badge/CVE-2026-126330.svg" alt="CVE-2026-126330"></a>
Affected
- docker:docker sandboxes
Versions
From the CNA's record in the CVE List.
| Product | Affected |
|---|---|
| Docker Sandboxes | from 0.34.0 before 0.53.0 |
Fixed in
| Product | Fixed in |
|---|---|
| Docker Sandboxes | 0.53.0 |
Fix and patched versions
- Docker Docker Sandboxes: fixed in 0.53.0