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Sun, 21 Jun 2026 09:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Docker
Docker docker Sandboxes |
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| Vendors & Products |
Docker
Docker docker Sandboxes |
Thu, 18 Jun 2026 16:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | Docker Sandboxes (sbx) blocks ICMP egress with an authorizer applied only at network-creation time, and does not re-apply it to networks rebuilt from disk when the Docker daemon restarts, so a restart-surviving sandbox forwards ICMP to arbitrary hosts. A workload inside a sandbox, which the threat model treats as untrusted, can therefore defeat the documented ICMP egress block to perform network reconnaissance and exfiltrate data over an ICMP covert channel, regardless of the configured allowlist. | |
| Title | Docker Sandboxes ICMP egress restriction bypass after daemon restart | |
| Weaknesses | CWE-665 CWE-923 |
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| References |
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| Metrics |
cvssV4_0
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Status: PUBLISHED
Assigner: Docker
Published:
Updated: 2026-06-18T14:56:02.329Z
Reserved: 2026-06-17T15:31:11.749Z
Link: CVE-2026-12539
Updated: 2026-06-18T14:55:59.351Z
No data.
No data.
OpenCVE Enrichment
Updated: 2026-06-20T22:56:06Z