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...

EUVD-2026-42275

App::Ack versions through 3.10.0 for Perl print unsanitised terminal escape sequences from filenames in several output modes. When ack prints a filename whose basename contains terminal control bytes such as ANSI escape sequences, those bytes reach the terminal unchanged. Version 3.10.0 added a...

Off-by-one Error

Overview Affected versions of this package are vulnerable to Off-by-one Error via the mbedtlspemreadbuffer, mbedtlspkparse and mbedtlspkparsekeyfile functions when processing untrusted PEM input. An attacker can cause a one-byte heap-based buffer underflow by supplying specially crafted PEM data...