OS command injection in alexei-led aws-mcp-server
Priority MEDIUM 45CWE-78Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Active
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-78.
Summary
aws-mcp-server MCP server is vulnerable to command injection. An attacker can craft a prompt that once accessed by the MCP client will run arbitrary commands on the host system.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.01251 69th percentileScored 2026-11-07
Fix Fixed aws-mcp-server (alexei-led): 1.3.0
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
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 |
|---|---|---|---|---|---|
| alexei-led | aws-mcp-server | before 1.3.0 | 1.3.0 | Patch available | CNA |
- aws-mcp-server Vendoralexei-led Affected before 1.3.0 Fixed in 1.3.0 Patch available CNA
Remediation
- Fix · CNA aws-mcp-server (alexei-led) Fixed in 1.3.0
Timeline
- 2026-10-02 Threatist record created from CVE-2025-5277
References
Sources
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences