How severe is CVE-2026-61459?

CVE-2026-61459 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-61459 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (80th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-61459?

CVE-2026-61459 affects Suyogs Mcp-server-kubernetes. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-61459?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2026-61459 published?

CVE-2026-61459 was published on 2026-07-10 and last updated on 2026-07-17.

CVE-2026-61459

CVE-2026-61459 is a critical-severity vulnerability in Suyogs Mcp-server-kubernetes with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-88.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v4: 9.3
EPSS exploit prediction: 2% (80th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-88
Affected product: Suyogs Mcp-server-kubernetes
Published: 2026-07-10
Last modified: 2026-07-17

Description

MCP Server Kubernetes before 3.9.0 contains an argument injection vulnerability in structured tools (kubectl_get, kubectl_describe, kubectl_delete) that allows attackers to bypass the assertNoDangerousFlags security check by supplying resourceType and name parameters with leading dashes. Attackers can inject the --server flag to redirect kubectl commands to an attacker-controlled API server, causing the operator's bearer token to be transmitted externally and enabling full cluster compromise.

Frequently asked questions

What is CVE-2026-61459?: MCP Server Kubernetes before 3.9.0 contains an argument injection vulnerability in structured tools (kubectl_get, kubectl_describe, kubectl_delete) that allows attackers to bypass the assertNoDangerousFlags security check by supplying resourceType and name parameters with leading dashes. Attackers can inject the --server flag to redirect kubectl commands to an attacker-controlled API server, causing the operator's bearer token to be transmitted externally and enabling full cluster compromise.
How severe is CVE-2026-61459?: CVE-2026-61459 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-61459 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (80th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-61459?: CVE-2026-61459 affects Suyogs Mcp-server-kubernetes. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-61459?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2026-61459 published?: CVE-2026-61459 was published on 2026-07-10 and last updated on 2026-07-17.

References

Affected products (1)

cpe:2.3:a:suyogs:mcp-server-kubernetes:*:*:*:*:*:node.js:*:*

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