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CVE-2026-55581 mcp-shell: Secure Mode Allowlist Bypass via Default `/bin/bash` Executable

🗓️ 25 Aug 2026 15:40:10Reported by GitHub_MType 
cvelist
 cvelist
🔗 www.cve.org👁 6 Views

mcp-shell <0.6.0 allowlist bypass via /bin/bash -c enables arbitrary command execution.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
circl
Circl
CVE-2026-55581
25 Aug 202616:32
circl
cve
CVE
CVE-2026-55581
25 Aug 202615:40
cve
euvd
EUVD
EUVD-2026-65549
25 Aug 202615:40
euvd
github
Github Security Blog
mcp-shell has a Secure Mode Allowlist Bypass via Default `/bin/bash` Executable
25 Aug 202615:41
github
nvd
NVD
CVE-2026-55581
25 Aug 202616:16
nvd
ptsecurity
Positive Technologies
PT-2026-81351
25 Aug 202600:00
ptsecurity
vulnrichment
Vulnrichment
CVE-2026-55581 mcp-shell: Secure Mode Allowlist Bypass via Default `/bin/bash` Executable
25 Aug 202615:40
vulnrichment
[
  {
    "vendor": "sonirico",
    "product": "mcp-shell",
    "versions": [
      {
        "version": "< 0.6.0",
        "status": "affected"
      }
    ]
  }
]

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