Summary
generated automatically from NVD dataSwarmKit toolkit 1.12.0 for Docker is reported to let a remote authenticated user cause a denial of service by performing a long sequence of join and quit actions, which prevents further nodes from joining the cluster. The vendor disputes the issue, arguing that a manager running out of memory is a resource provisioning matter, and that joining requires a secret token. It carries a CVSS v3.0 score of 6.5 (MEDIUM) and is classed as CWE-399.
NVD description
The SwarmKit toolkit 1.12.0 for Docker allows remote authenticated users to cause a denial of service (prevention of cluster joins) via a long sequence of join and quit actions. NOTE: the vendor disputes this issue, stating that this sequence is not "removing the state that is left by old nodes. At some point the manager obviously stops being able to accept new nodes, since it runs out of memory. Given that both for Docker swarm and for Docker Swarmkit nodes are *required* to provide a secret token (it's actually the only mode of operation), this means that no adversary can simply join nodes and exhaust manager resources. We can't do anything about a manager running out of memory and not being able to add new legitimate nodes to the system. This is merely a resource provisioning issue, and definitely not a CVE worthy vulnerability.
EPSS · FIRST.org
2.8%probability of exploitation in the next 30 days
Higher than 86% of scored CVEs
EPSS (Exploit Prediction Scoring System) estimates, from observed exploitation activity, how likely a CVE is to be exploited in the next 30 days. It complements CVSS, which measures severity, not likelihood. Score of 2026-10-30, recomputed daily by FIRST.org.
CVSS v3.0 Score
Information
- Published
- 4 janv. 2017
- Updated
- 17 juin 2026
- Status
- Modified
- Source
- cve@mitre.org
Affected products
Bounds published by NVD: "< 8.4.27" means 8.4.27 is no longer vulnerable. The fixed release to install is in the vendor advisory.
Weaknesses (CWE)
References (10)
- http://www.openwall.com/lists/oss-security/2016/08/04/1Third Party Advisory
- http://www.openwall.com/lists/oss-security/2016/09/02/1Third Party Advisory
- http://www.openwall.com/lists/oss-security/2016/09/02/8Third Party Advisory
- http://www.openwall.com/lists/oss-security/2016/08/04/1Third Party Advisory
- http://www.openwall.com/lists/oss-security/2016/09/02/1Third Party Advisory
- http://www.openwall.com/lists/oss-security/2016/09/02/8Third Party Advisory
Similar CVEs
Other vulnerabilities of type CWE-399
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