JumpServer has a Kubernetes Token Leak Vulnerability
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| jumpserver | jumpserver | affected |
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Configuration 1 [-]
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No data.
| Vendor | Product | Versions |
|---|---|---|
| Jumpserver | Jumpserver | — |
| Source | ID | Title |
|---|---|---|
EUVD |
EUVD-2025-8756 | JumpServer is an open source bastion host and an operation and maintenance security audit system. Prior to 4.8.0 and 3.10.18, an attacker with a low-privileged account can access the Kubernetes session feature and manipulate the kubeconfig file to redirect API requests to an external server controlled by the attacker. This allows the attacker to intercept and capture the Kubernetes cluster token. This can potentially allow unauthorized access to the cluster and compromise its security. This vulnerability is fixed in 4.8.0 and 3.10.18. |
No CVSS v4.0
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.332% probability within 30 days)
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Fit2cloud
Fit2cloud jumpserver |
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| CPEs | cpe:2.3:a:fit2cloud:jumpserver:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Fit2cloud
Fit2cloud jumpserver |
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
| Type | Values Removed | Values Added |
|---|---|---|
| Description | JumpServer is an open source bastion host and an operation and maintenance security audit system. Prior to 4.8.0 and 3.10.18, an attacker with a low-privileged account can access the Kubernetes session feature and manipulate the kubeconfig file to redirect API requests to an external server controlled by the attacker. This allows the attacker to intercept and capture the Kubernetes cluster token. This can potentially allow unauthorized access to the cluster and compromise its security. This vulnerability is fixed in 4.8.0 and 3.10.18. | |
| Title | JumpServer has a Kubernetes Token Leak Vulnerability | |
| Weaknesses | CWE-266 | |
| References |
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| Metrics |
cvssV3_1
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