CVE-2026-6791 Potential stack-based buffer clash during tilde expansion in wordexp

When expanding paths that begin with a tilde followed by a username, the internal parsetilde function extracts the username to determine the user's home directory. The implementation allocates memory for this username directly on the stack using the strndupa macro. Because the size of this...

EUVD-2026-55729

When expanding paths that begin with a tilde followed by a username, the internal parsetilde function extracts the username to determine the user's home directory. The implementation allocates memory for this username directly on the stack using the strndupa macro. Because the size of this...

CVE-2026-6791

When expanding paths that begin with a tilde followed by a username, the internal parsetilde function extracts the username to determine the user's home directory. The implementation allocates memory for this username directly on the stack using the strndupa macro. Because the size of this...

CVE-2026-6791 Potential stack-based buffer clash during tilde expansion in wordexp

When expanding paths that begin with a tilde followed by a username, the internal parsetilde function extracts the username to determine the user's home directory. The implementation allocates memory for this username directly on the stack using the strndupa macro. Because the size of this...

CVE-2026-6791 Potential stack-based buffer clash during tilde expansion in wordexp

When expanding paths that begin with a tilde followed by a username, the internal parsetilde function extracts the username to determine the user's home directory. The implementation allocates memory for this username directly on the stack using the strndupa macro. Because the size of this...

CVE-2026-6791

When expanding paths that begin with a tilde followed by a username, the internal parsetilde function extracts the username to determine the user's home directory. The implementation allocates memory for this username directly on the stack using the strndupa macro. Because the size of this...

GHSA-GM37-52C6-37MW pymdown-extensions: exponential-backtracking ReDoS in caret, tilde, betterem, and magiclink inline processors

Summary Four inline processors in pymdown-extensions contain regular expressions with exponential backtracking. A single untrusted Markdown line under 50 bytes drives markdown.markdown into unbounded CPU on the rendering thread seconds at 45 bytes, growing exponentially with each added character...

CVE-2026-67422

CVE-2026-67422 affects pymdown-extensions up to version 11.0, where four inline processors—caret, tilde, betterem, and magiclink—use regex patterns whose groups can partition delimiter runs in exponentially many ways. This causes catastrophic backtracking and unbounded CPU usage when rendering a ...

CVE-2026-67422 pymdown-extensions: Exponential-backtracking ReDoS in caret, tilde, betterem, and magiclink inline processors

pymdown-extensions is a collection of extensions for the Python Markdown library. In versions up to and including 11.0, four inline processors caret, tilde, betterem, and magiclink use regular expressions whose content groups can partition a run of delimiter characters in exponentially many ways,...

CVE-2026-67422 pymdown-extensions: Exponential-backtracking ReDoS in caret, tilde, betterem, and magiclink inline processors

pymdown-extensions is a collection of extensions for the Python Markdown library. In versions up to and including 11.0, four inline processors caret, tilde, betterem, and magiclink use regular expressions whose content groups can partition a run of delimiter characters in exponentially many ways,...

CVE-2026-59922

A flaw was found in Mistune, a Python Markdown parser. A remote attacker could exploit this vulnerability by providing specially crafted input containing specific marker pairs tilde, equals-sign, or caret. This crafted input causes the parser to perform quadratic work, leading to excessive CPU...

CVE-2026-54590

AsyncSSH (Python, v2.23.0) contains an incomplete fix for CVE-2026-45309 in SSHServerConfig._set_tokens that blocks /, , and .. before %u substitution in AuthorizedKeysFile but fails to block a leading ~ or ${ENV}. This allows later expansion in _expand_val and Path(filename).expanduser() to esca...

CVE-2026-54590 AsyncSSH AuthorizedKeysFile username substitution bypass through ~ and environment expansion

AsyncSSH is a Python package which provides an asynchronous client and server implementation of the SSHv2 protocol on top of the Python asyncio framework. Version 2.23.0 contains an incomplete fix for CVE-2026-45309 in SSHServerConfig.settokens that blocks /, , and .. before %u substitution in...

CVE-2026-54590 AsyncSSH AuthorizedKeysFile username substitution bypass through ~ and environment expansion

AsyncSSH is a Python package which provides an asynchronous client and server implementation of the SSHv2 protocol on top of the Python asyncio framework. Version 2.23.0 contains an incomplete fix for CVE-2026-45309 in SSHServerConfig.settokens that blocks /, , and .. before %u substitution in...

CVE-2026-54590

AsyncSSH is a Python package which provides an asynchronous client and server implementation of the SSHv2 protocol on top of the Python asyncio framework. Version 2.23.0 contains an incomplete fix for CVE-2026-45309 in SSHServerConfig.settokens that blocks /, , and .. before %u substitution in...

PT-2026-56577

Name of the Vulnerable Software and Affected Versions AsyncSSH version 2.23.0 Description An incomplete fix in the SSHServerConfig. set tokens function fails to block leading or $ENV characters before %u substitution in the AuthorizedKeysFile. This allows subsequent expansion in expand val and...

PT-2026-69895

Name of the Vulnerable Software and Affected Versions The product name cannot be determined affected versions not specified Description An issue exists in the wordexp function when expanding paths that start with a tilde followed by a username. The internal parse tilde function allocates memory f...

Advisory ROSA-SA-2026-3301

Component: libconfuse 3.3 Operating System: ROSA-CHROME Unaffected versions: = libconfuse-3.3-3 Affected versions: libconfuse-3.3-3 CVE-ID: CVE-2022-40320 BDU-ID: 2022-05795 CVE-Crit: LOW CVE-DESC.: The vulnerability in the cfgtildeexpand function of the configuration file parser library libConfu...

JLSEC-2026-406

A path traversal vulnerability exists in curl 8.0.0 SFTP implementation causes the tilde character to be wrongly replaced when used as a prefix in the first path element, in addition to its intended use as the first element to indicate a path relative to the user's home directory. Attackers can...

MiracleLinux 4 : glibc-2.12-1.212.AXS4 (AXSA:2018-3156:01)

The remote MiracleLinux 4 host has packages installed that are affected by multiple vulnerabilities as referenced in the AXSA:2018-3156:01 advisory. glibc: Buffer overflow in glob with GLOBTILDE CVE-2017-15670 glibc: Buffer overflow during unescaping of user names with the operator CVE-2017-15804...