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Github Security Blog
Github Security Blog
•added 2026/08/25 3:41 p.m.•20 views

mcp-shell has a Secure Mode Allowlist Bypass via Default `/bin/bash` Executable

Summary mcp-shell ships a default Docker configuration security.yaml that includes /bin/bash in the allowedexecutables allowlist. The command validator security.go only checks whether the first token of the supplied command matches an allowed executable; it does not inspect or reject shell...

8.4CVSS6.6AI score0.00454EPSS
SaveExploits0References5Affected Software1
Cvelist
Cvelist
•added 2026/08/25 3:40 p.m.•55 views

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

mcp-shell is an MCP server for running shell commands securely, auditably, and on demand. Prior to 0.6.0, the default Docker security.yaml includes /bin/bash in allowedexecutables, while security.go validates only the first token and checkBlockedPatternsAndCommands does not reject the shell...

8.4CVSS0.00454EPSS
SaveExploits0References4
EUVD
EUVD
•added 2026/08/25 3:40 p.m.•20 views

EUVD-2026-65549

mcp-shell is an MCP server for running shell commands securely, auditably, and on demand. Prior to 0.6.0, the default Docker security.yaml includes /bin/bash in allowedexecutables, while security.go validates only the first token and checkBlockedPatternsAndCommands does not reject the shell...

8.4CVSS6.3AI score0.00454EPSS
SaveExploits0References4
Vulnrichment
Vulnrichment
•added 2026/08/25 3:40 p.m.•11 views

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

mcp-shell is an MCP server for running shell commands securely, auditably, and on demand. Prior to 0.6.0, the default Docker security.yaml includes /bin/bash in allowedexecutables, while security.go validates only the first token and checkBlockedPatternsAndCommands does not reject the shell...

8.4CVSS6.3AI score0.00454EPSS
SaveExploits0References4
Mend
Mend
•added 2026/08/25 3:40 p.m.•5 views

CVE-2026-55581

mcp-shell is an MCP server for running shell commands securely, auditably, and on demand. Prior to 0.6.0, the default Docker security.yaml includes /bin/bash in allowedexecutables, while security.go validates only the first token and checkBlockedPatternsAndCommands does not reject the shell...

8.6CVSS6.3AI score0.00454EPSS
SaveExploits0References7
OSV
OSV
•added 2026/08/25 3:40 p.m.•15 views

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

mcp-shell is an MCP server for running shell commands securely, auditably, and on demand. Prior to 0.6.0, the default Docker security.yaml includes /bin/bash in allowedexecutables, while security.go validates only the first token and checkBlockedPatternsAndCommands does not reject the shell...

8.4CVSS6AI score
SaveExploits0References6
CVE
CVE
•added 2026/08/25 3:40 p.m.•72 views

CVE-2026-55581

mcp-shell is an MCP server for running shell commands securely. Prior to 0.6.0 , the default Docker security.yaml includes /bin/bash in allowed_executables, while security.go validates only the first token and checkBlockedPatternsAndCommands does not reject the shell -c flag. A caller of the shel...

8.4CVSS6.3AI score0.00454EPSS
SaveExploits0References4
Github Security Blog
Github Security Blog
•added 2026/08/25 3:39 p.m.•28 views

mcp-shell has a Secure Mode Allowlist Bypass via Git Shell Alias

Summary mcp-shell's "secure mode" is designed to restrict command execution to an allowlist of executables defined in security.yaml. The default configuration includes /usr/bin/git. The security validator in security.go blocks common shell metacharacters |&;$\ but omits !, which is the prefix Git...

8.4CVSS6.8AI score0.00267EPSS
SaveExploits0References5Affected Software1
OSV
OSV
•added 2026/08/25 3:39 p.m.•13 views

GHSA-74HP-MGGR-HV58 mcp-shell has a Secure Mode Allowlist Bypass via Git Shell Alias

Summary mcp-shell's "secure mode" is designed to restrict command execution to an allowlist of executables defined in security.yaml. The default configuration includes /usr/bin/git. The security validator in security.go blocks common shell metacharacters |&;$\ but omits !, which is the prefix Git...

8.4CVSS6.8AI score0.00267EPSS
SaveExploits0References5
Vulnrichment
Vulnrichment
•added 2026/08/25 3:37 p.m.•16 views

CVE-2026-55582 mcp-shell: Secure Mode Allowlist Bypass via Git Shell Alias

mcp-shell is an MCP server for running shell commands securely, auditably, and on demand. Prior to 0.6.0, the default security.yaml allows /usr/bin/git, while security.go omits ! from containsShellMetacharacters and containsDangerousShellConstructs and applies no per-executable argument policy. A...

8.4CVSS6.4AI score0.00267EPSS
SaveExploits0References4
EUVD
EUVD
•added 2026/08/25 3:37 p.m.•14 views

EUVD-2026-65548

mcp-shell is an MCP server for running shell commands securely, auditably, and on demand. Prior to 0.6.0, the default security.yaml allows /usr/bin/git, while security.go omits ! from containsShellMetacharacters and containsDangerousShellConstructs and applies no per-executable argument policy. A...

8.4CVSS6.4AI score0.00267EPSS
SaveExploits0References4
CVE
CVE
•added 2026/08/25 3:37 p.m.•33 views

CVE-2026-55582

mcp-shell is an MCP server for running shell commands securely. Prior to 0.6.0 , the default security.yaml allows /usr/bin/git, while security.go omits the ! character from its shell-metacharacter and dangerous-construct checks and applies no per-executable argument policy. A caller of the shell_...

8.4CVSS6.4AI score0.00267EPSS
SaveExploits0References4
Cvelist
Cvelist
•added 2026/08/25 3:37 p.m.•41 views

CVE-2026-55582 mcp-shell: Secure Mode Allowlist Bypass via Git Shell Alias

mcp-shell is an MCP server for running shell commands securely, auditably, and on demand. Prior to 0.6.0, the default security.yaml allows /usr/bin/git, while security.go omits ! from containsShellMetacharacters and containsDangerousShellConstructs and applies no per-executable argument policy. A...

8.4CVSS0.00267EPSS
SaveExploits0References4
Mend
Mend
•added 2026/08/25 3:37 p.m.•6 views

CVE-2026-55582

mcp-shell is an MCP server for running shell commands securely, auditably, and on demand. Prior to 0.6.0, the default security.yaml allows /usr/bin/git, while security.go omits ! from containsShellMetacharacters and containsDangerousShellConstructs and applies no per-executable argument policy. A...

8.6CVSS6.4AI score0.00267EPSS
SaveExploits0References7
OSV
OSV
•added 2026/08/25 3:37 p.m.•18 views

CVE-2026-55582 mcp-shell: Secure Mode Allowlist Bypass via Git Shell Alias

mcp-shell is an MCP server for running shell commands securely, auditably, and on demand. Prior to 0.6.0, the default security.yaml allows /usr/bin/git, while security.go omits ! from containsShellMetacharacters and containsDangerousShellConstructs and applies no per-executable argument policy. A...

8.4CVSS6.2AI score
SaveExploits0References6
NVD
NVD
•added 2026/08/25 3:16 p.m.•19 views

CVE-2026-16286

Unrestricted upload of file with dangerous type vulnerability in TRtek Technological Products Computer Software Hardware Industry and Trade Limited Company Software Repository Management allows Upload a Web Shell to a Web Server. This issue affects Software Repository Management: before 2fb4acee...

9.8CVSS0.00322EPSS
SaveExploits0References1
Vulnrichment
Vulnrichment
•added 2026/08/25 2:26 p.m.•17 views

CVE-2026-16286 File Upload in TRTEK Software's Software Repository Management

Unrestricted upload of file with dangerous type vulnerability in TRtek Technological Products Computer Software Hardware Industry and Trade Limited Company Software Repository Management allows Upload a Web Shell to a Web Server. This issue affects Software Repository Management: before 2fb4acee...

9.8CVSS5.8AI score0.00322EPSS
SaveExploits0References1
Cvelist
Cvelist
•added 2026/08/25 2:26 p.m.•42 views

CVE-2026-16286 File Upload in TRTEK Software's Software Repository Management

Unrestricted upload of file with dangerous type vulnerability in TRtek Technological Products Computer Software Hardware Industry and Trade Limited Company Software Repository Management allows Upload a Web Shell to a Web Server. This issue affects Software Repository Management: before 2fb4acee...

9.8CVSS0.00322EPSS
SaveExploits0References1
CVE
CVE
•added 2026/08/25 2:26 p.m.•46 views

CVE-2026-16286

CVE-2026-16286 is an unrestricted file upload vulnerability in TRtek Software Repository Management , allowing an unauthenticated attacker to upload a web shell to a web server. The flaw stems from insufficient validation of uploaded file types. Affected versions are those before commit 2fb4acee ...

9.8CVSS5.8AI score0.00322EPSS
SaveExploits0References1
EUVD
EUVD
•added 2026/08/25 2:26 p.m.•15 views

EUVD-2026-65495

Unrestricted upload of file with dangerous type vulnerability in TRtek Technological Products Computer Software Hardware Industry and Trade Limited Company Software Repository Management allows Upload a Web Shell to a Web Server. This issue affects Software Repository Management: before 2fb4acee...

9.8CVSS5.3AI score0.00322EPSS
SaveExploits0References1
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