CVE-2026-0755: gemini-mcp-tool · OS Command Injection
Affects gemini-mcp-toolSource CVE Database V5
Not known to be exploited · CVSS 9.8 Critical.
Data as of 26 Oct 2026, 15:59 UTC
- EPSS
- 3.4% chance of exploitation in 30 days – higher than 88% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 23 Jan 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Gemini MCP Toolgemini-mcp-tool | Affected
| Fixed in– |
npmgemini-mcp-toolpkg:npm/gemini-mcp-toolOther threats | Affected
| Fixed in– |
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
- Immediately identify and inventory all instances of gemini-mcp-tool version 1.1.2 within your environment.
- Restrict network access to the gemini-mcp-tool service using firewall rules or network segmentation to limit exposure to untrusted networks.
- Implement strict input validation and sanitization on any interfaces interacting with execAsync or similar functions, if source code or configuration changes are possible.
- Monitor logs and network traffic for unusual or suspicious command execution patterns indicative of exploitation attempts.
- Employ application-layer firewalls or intrusion detection/prevention systems (IDS/IPS) tuned to detect command injection signatures.
- Engage with the vendor or community for patches or updates; apply them immediately once available.
- Consider deploying compensating controls such as running the service with least privilege and using containerization or sandboxing to limit impact.
- Conduct security awareness and incident response drills focused on this vulnerability to prepare for potential exploitation scenarios.
Description
CVE-2026-0755 is a critical OS command injection vulnerability in gemini-mcp-tool version 1.1.2, allowing unauthenticated remote attackers to execute arbitrary code via the execAsync method. The flaw arises from improper validation of user-supplied input used in system calls, enabling full compromise of the service account. With a CVSS score of 9.8, this vulnerability impacts confidentiality, integrity, and availability without requiring authentication or user interaction. No public exploits are known yet, but the severity and ease of exploitation make it a significant threat. European organizations using gemini-mcp-tool should prioritize patching or mitigating this issue immediately. Countries with higher adoption of this tool or critical infrastructure relying on it are at greater risk. Mitigation involves restricting network access, input validation, and monitoring for suspicious activity until a patch is available.