CVE-2025-53355 json
mcp-server-kubernetes vulnerable to command injection in several tools
published last yr. modified 4mo ago also EUVD-2025-20689 , GHSA-gjv4-ghm7-q58q
- cvss
- 7.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 2.2%
- EPSS 2.2% chance of exploitation in 30 days, percentile 82%
- public exploits
- 0
- none known
Summary
MCP Server Kubernetes is an MCP Server that can connect to a Kubernetes cluster and manage it. A command injection vulnerability exists in the mcp-server-kubernetes MCP Server. The vulnerability is caused by the unsanitized use of input parameters within a call to child_process.execSync, enabling an attacker to inject arbitrary system commands. Successful exploitation can lead to remote code execution under the server process's privileges. This vulnerability is fixed in 2.5.0.
Patch / fix
- npm mcp-server-kubernetes 2.5.0
- suyogs mcp-server-kubernetes 2.5.0
Is CVE-2025-53355 in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.
Check with FencerCISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- no
- Technical impact
- total
- Assessed
- last yr.
Exploit prediction
2.24% chance of exploitation in the next 30 days, higher than 82% of all scored CVEs (FIRST EPSS, 2026-11-09).
Exploits and checks
- github.com https://github.com/Flux159/mcp-server-kubernetes/security/advisories/GHSA-gjv4-ghm7-q58q referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H |
| GitHub | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| npm | mcp-server-kubernetes | <2.5.0 |
2.5.0 |
Affected products
- Flux159 mcp-server-kubernetes
Classification
- Weakness
-
- CWE-77 Improper Neutralization of Special Elements used in a Command
References
-
github.com
/Flux159/mcp-server-kubernetes/commit/ab165f5a0eea917fef5dbae954506fff6f4bf514
web
-
github.com
/cyanheads/git-mcp-server/commit/0dbd6995ccdf76ab770b58013034365b2d06c4d9
web
-
github.com
/Flux159/mcp-server-kubernetes/security/advisories/GHSA-gjv4-ghm7-q58q
exploit, web
-
nvd.nist.gov
/vuln/detail/CVE-2025-53355
advisory
-
equixly.com
/blog/2025/03/29/mcp-server-new-security-nightmare
web
-
github.com
/Flux159/mcp-server-kubernetes
package
-
invariantlabs.ai
/blog/mcp-github-vulnerability
web
Sources
- CVE List CVE-2025-53355
- GitHub Advisory GHSA-gjv4-ghm7-q58q
- NVD CVE-2025-53355
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.
CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.