KubeEdge CloudCore Router memory exhaustion
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub. Impact type from CWE-400.
Summary
KubeEdge is an open source system for extending native containerized application orchestration capabilities to hosts at Edge. Prior to versions 1.11.1, 1.10.2, and 1.9.4, the CloudCore Router does not impose a limit on the size of responses to requests made by the REST handler. An attacker could use this weakness to make a request that will return an HTTP response with a large body and cause DoS of CloudCore. In the HTTP Handler API, the rest handler makes a request to a pre-specified handle. The handle will return an HTTP response that is then read into memory. The consequence of the exhaustion is that CloudCore will be in a denial of service. Only an authenticated user of the cloud can make an attack. It will be affected only when users enable `router` module in the config file `cloudcore.yaml`. This bug has been fixed in Kubeedge 1.11.1, 1.10.2, and 1.9.4. As a workaround, disable the router switch in the config file `cloudcore.yaml`.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| backstage | kubeedge | before 1.9.4; 1.10.0 to before 1.10.2; = 1.11.0 | 1.9.4, 1.10.2 | Patch available | CNA |
| — | github.com/kubeedge/kubeedge (Go) | 1.11.0 to before 1.11.1 | 1.11.1 | Patch available | GHSA-qpx3-9565-5xwm |
| — | github.com/kubeedge/kubeedge (Go) | 1.10.0 to before 1.10.2 | 1.10.2 | Patch available | GHSA-qpx3-9565-5xwm |
| — | github.com/kubeedge/kubeedge (Go) | before 1.9.4 | 1.9.4 | Patch available | GHSA-qpx3-9565-5xwm |
- kubeedge Vendorbackstage Affected before 1.9.4; 1.10.0 to before 1.10.2; = 1.11.0 Fixed in 1.9.4, 1.10.2 Patch available CNA
- github.com/kubeedge/kubeedge (Go) Vendor— Affected 1.11.0 to before 1.11.1 Fixed in 1.11.1 Patch available GHSA-qpx3-9565-5xwm
- github.com/kubeedge/kubeedge (Go) Vendor— Affected 1.10.0 to before 1.10.2 Fixed in 1.10.2 Patch available GHSA-qpx3-9565-5xwm
- github.com/kubeedge/kubeedge (Go) Vendor— Affected before 1.9.4 Fixed in 1.9.4 Patch available GHSA-qpx3-9565-5xwm
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:linuxfoundation:kubeedge:*:*:*:*:*:*:*:* | before 1.9.4; 1.10.0 to before 1.10.2; 1.11.0 to before 1.11.1 | Vulnerable | backstage |
- cpe:2.3:a:linuxfoundation:kubeedge:*:*:*:*:*:*:*:* Versions before 1.9.4; 1.10.0 to before 1.10.2; 1.11.0 to before 1.11.1 Vulnerable ·backstage
Remediation
- Fix · CNA kubeedge (kubeedge) Fixed in 1.9.4, 1.10.2
- Fix · GHSA-qpx3-9565-5xwm github.com/kubeedge/kubeedge (Go) Fixed in 1.11.1 Advisory →
- Fix · GHSA-qpx3-9565-5xwm github.com/kubeedge/kubeedge (Go) Fixed in 1.10.2 Advisory →
- Fix · GHSA-qpx3-9565-5xwm github.com/kubeedge/kubeedge (Go) Fixed in 1.9.4 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2022-31078
- 2026-10-03 Alias added: GHSA-qpx3-9565-5xwm
References
More backstage Kubeedge vulnerabilities
- TI-2022-13117 KubeEdge Edge ServiceBus module DoS CVSS 3.1HIGH 7.5
- TI-2022-13120 Malicious Message can crash CloudCore in KubeEdge CVSS 3.1MEDIUM 5.7
- TI-2022-13119 KubeEdge DoS when signing the CSR from EdgeCore CVSS 3.1MEDIUM 6.5
- TI-2022-13124 KubeEdge Websocket Client in package Viaduct: DoS from large response message CVSS 3.1MEDIUM 6.5
- TI-2022-13123 KubeEdge Cloud Stream and Edge Stream DoS from large stream message CVSS 3.1MEDIUM 6.5
- TI-2022-13118 KubeEdge Cloud AdmissionController component DoS CVSS 3.1MEDIUM 6.5
Sources
- CVE-2022-31078 · CVE Program
- CVE-2022-31078 · NVD
- FIRST EPSS
- GHSA-qpx3-9565-5xwm · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences