CVE-2026-34939 PraisonAI: ReDoS via Unvalidated User-Controlled Regex in MCPToolIndex.search_tools()

PraisonAI is a multi-agent teams system. Prior to version 4.5.90, MCPToolIndex.searchtools compiles a caller-supplied string directly as a Python regular expression with no validation, sanitization, or timeout. A crafted regex causes catastrophic backtracking in the re engine, blocking the Python...

EUVD-2026-16322

path-to-regexp vulnerable to Regular Expression Denial of Service via multiple wildcards...

CVE-2026-0967 Libssh: libssh: denial of service via inefficient regular expression processing

A flaw was found in libssh. A remote attacker, by controlling client configuration files or knownhosts files, could craft specific hostnames that when processed by the matchpattern function can lead to inefficient regular expression backtracking. This can cause timeouts and resource exhaustion,...

CVE-2026-0967 Libssh: libssh: denial of service via inefficient regular expression processing

A flaw was found in libssh. A remote attacker, by controlling client configuration files or knownhosts files, could craft specific hostnames that when processed by the matchpattern function can lead to inefficient regular expression backtracking. This can cause timeouts and resource exhaustion,...

CVE-2026-0967

A flaw was found in libssh. A remote attacker, by controlling client configuration files or knownhosts files, could craft specific hostnames that when processed by the matchpattern function can lead to inefficient regular expression backtracking. This can cause timeouts and resource exhaustion,...

CVE-2026-4923

Impact: When using multiple wildcards, combined with at least one parameter, a regular expression can be generated that is vulnerable to ReDoS. This backtracking vulnerability requires the second wildcard to be somewhere other than the end of the path. Unsafe examples: /foo-bar-:baz /a-:b-c-:d...

CVE-2026-4923

The CVE-2026-4923 entry describes a ReDoS vulnerability in path-to-regexp when using multiple wildcards with at least one parameter, where a backtracking-regex can be generated if the second wildcard is not at the path end. Affects are demonstrated with unsafe and safe examples, and the recommend...

OESA-2026-1552 cpp-httplib security update

A C++11 single-file header-only cross platform HTTP/HTTPS library. It's extremely easy to setup. Just include httplib.h file in your code! Security Fixes: cpp-httplib is a C++11 single-file header-only cross platform HTTP/HTTPS library. Prior to 0.35.0, when a request handler throws a C++ excepti...

CVE-2026-28356

A flaw was found in multipart. The parseoptionsheader function in multipart.py uses a regular expression with an ambiguous alternation, causing an exponential backtracking ReDoS when parsing a specially crafted HTTP or multipart segment headers. A web application parsing request headers or...

CVE-2026-28356

multipart is a fast multipart/form-data parser for python. Prior to 1.2.2, 1.3.1 and 1.4.0-dev, the parseoptionsheader function in multipart.py uses a regular expression with an ambiguous alternation, which can cause exponential backtracking ReDoS when parsing maliciously crafted HTTP or multipar...

python-multipart 安全漏洞

python-multipart is a Python-based streaming multipart parser developed by Marcelo Trylesinski. Versions prior to 1.2.2, 1.3.1, and 1.4.0-dev contained security vulnerabilities. These vulnerabilities stemmed from the use of ambiguous regular expressions in the parseoptionsheader function, which...

Linux Distros Unpatched Vulnerability : CVE-2026-28356

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - multipart is a fast multipart/form-data parser for python. Prior to 1.2.2, 1.3.1 and 1.4.0-dev, the parseoptionsheader function in multipart.py uses a regular...

CVE-2026-30925

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to 9.5.0-alpha.14 and 8.6.11, a malicious client can subscribe to a LiveQuery with a crafted $regex pattern that causes catastrophic backtracking, blocking the Node.js event loop. This...

CVE-2026-30925

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to 9.5.0-alpha.14 and 8.6.11, a malicious client can subscribe to a LiveQuery with a crafted $regex pattern that causes catastrophic backtracking, blocking the Node.js event loop. This...

EUVD-2026-10437

Parse Server has Regular Expression Denial of Service ReDoS via $regex query in LiveQuery...

CVE-2026-30925

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to 9.5.0-alpha.14 and 8.6.11, a malicious client can subscribe to a LiveQuery with a crafted $regex pattern that causes catastrophic backtracking, blocking the Node.js event loop. This...

PT-2026-24151

Name of the Vulnerable Software and Affected Versions Parse Server versions prior to 9.5.0-alpha.14 Parse Server versions prior to 8.6.11 Description A crafted $regex pattern within a LiveQuery subscription can cause catastrophic backtracking, blocking the Node.js event loop and rendering the...

CVE-2026-29076

Affected software: cpp-httplib (C++11 single-file header-only HTTP/HTTPS library). The vulnerability occurs before version 0.37.0 where std::regex (libstdc++) is used to parse RFC 5987 encoded filename* values in multipart Content-Disposition headers. The regex engine’s backtracking can cause dee...

CVE-2026-29076 cpp-httplib: Stack Overflow Denial of Service (DoS) via std::regex in multipart filename parsing

cpp-httplib is a C++11 single-file header-only cross platform HTTP/HTTPS library. Prior to version 0.37.0, cpp-httplib uses std::regex libstdc++ to parse RFC 5987 encoded filename values in multipart Content-Disposition headers. The regex engine in libstdc++ implements backtracking via deep...

PT-2026-23867

Name of the Vulnerable Software and Affected Versions cpp-httplib versions prior to 0.37.0 Description The software uses std::regex libstdc++ to parse RFC 5987 encoded filename values in multipart Content-Disposition headers. A crafted filename parameter can cause uncontrolled stack growth due to...