EUVD-2026-63729

The URLS regular expression in nltk/tokenize/casual.py, compiled into TweetTokenizer.WORDRE and applied by TweetTokenizer.tokenize, contains a naked-domain branch whose domain-label prefix a-z0-9+?:.-a-z0-9+ is unbounded. Input consisting of many alternating label separators can be partitioned in...

CVE-2026-72818

NLTK (Python NLP library) is vulnerable to catastrophic regex backtracking in nltk/tokenize/casual.py. The TweetTokenizer.WORD_RE pattern contains an unbounded naked-domain label prefix [a-z0-9]+(?:[.\-][a-z0-9]+)*. Crafted input with many alternating label separators causes the regex engine to e...

brace-expansion: Brace-expansion: Denial of Service due to exponential-time complexity

A flaw was found in brace-expansion. An attacker can exploit a vulnerability in the expand function by providing a specially crafted string. This string, containing consecutive non-expanding brace groups, can trigger exponential-time complexity, leading to significant CPU consumption and event-lo...

Linux Distros Unpatched Vulnerability : CVE-2026-73643

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - js-yaml is a JavaScript YAML parser and dumper. From 5.0.0 until 5.2.2, parsing a small YAML document can take exponential time when an application calls load o...

CVE-2026-73643

js-yaml is a JavaScript YAML parser and dumper. From 5.0.0 until 5.2.2, parsing a small YAML document can take exponential time when an application calls load or loadAll on untrusted input. In src/parser/parser.ts, readFlowCollection uses restoreState and calls parseNode a second time when a...

CVE-2026-73643 js-yaml: Exponential parsing time in the flow collections leads to denial of service

js-yaml is a JavaScript YAML parser and dumper. From 5.0.0 until 5.2.2, parsing a small YAML document can take exponential time when an application calls load or loadAll on untrusted input. In src/parser/parser.ts, readFlowCollection uses restoreState and calls parseNode a second time when a...

CVE-2026-73643 js-yaml: Exponential parsing time in the flow collections leads to denial of service

js-yaml is a JavaScript YAML parser and dumper. From 5.0.0 until 5.2.2, parsing a small YAML document can take exponential time when an application calls load or loadAll on untrusted input. In src/parser/parser.ts, readFlowCollection uses restoreState and calls parseNode a second time when a...

CVE-2026-73643

js-yaml versions 5.0.0–5.2.2 expose a denial-of-service via exponential parsing time when loading untrusted YAML. In src/parser/parser.ts, readFlowCollection can double-parse nested flow sequences, causing O(2^n) work and potential CPU exhaustion for inputs under 200 bytes. Fixed in version 5.2.2...

brace-expansion: Brace-expansion: Denial of Service due to exponential-time complexity

A flaw was found in brace-expansion. An attacker can exploit a vulnerability in the expand function by providing a specially crafted string. This string, containing consecutive non-expanding brace groups, can trigger exponential-time complexity, leading to significant CPU consumption and event-lo...

brace-expansion: Brace-expansion: Denial of Service due to exponential-time complexity

A flaw was found in brace-expansion. An attacker can exploit a vulnerability in the expand function by providing a specially crafted string. This string, containing consecutive non-expanding brace groups, can trigger exponential-time complexity, leading to significant CPU consumption and event-lo...

brace-expansion: Brace-expansion: Denial of Service due to exponential-time complexity

A flaw was found in brace-expansion. An attacker can exploit a vulnerability in the expand function by providing a specially crafted string. This string, containing consecutive non-expanding brace groups, can trigger exponential-time complexity, leading to significant CPU consumption and event-lo...

brace-expansion: Brace-expansion: Denial of Service due to exponential-time complexity

A flaw was found in brace-expansion. An attacker can exploit a vulnerability in the expand function by providing a specially crafted string. This string, containing consecutive non-expanding brace groups, can trigger exponential-time complexity, leading to significant CPU consumption and event-lo...

RHEL 10 : nodejs-nodemon (RHSA-2026:52394)

The remote Redhat Enterprise Linux 10 host has a package installed that is affected by a vulnerability as referenced in the RHSA-2026:52394 advisory. Simple monitor script for use during development of a node.js app. For use during development of a node.js based application. nodemon will watch th...

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 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

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,...

Linux Distros Unpatched Vulnerability : CVE-2026-53504

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Thumbor is an open-source photo thumbnail service by globo.com. Prior to 7.8.0, the convolution filter regular expression performs exponential backtracking on...

python-cryptography: Duplicate self-signed intermediates can cause exponential path-building

SummaryWhen resolving invalid certificate chains that include duplicate copies of self-signed certificates, the processing recursively invokes the same candidate, leading to an exponential blowup. Although the limitation that the chain depth cannot exceed a specified maximum depth prevents...

PYSEC-2026-3553 python-cryptography: Duplicate self-signed intermediates can cause exponential path-building

Summary When resolving invalid certificate chains that include duplicate copies of self-signed certificates, the processing recursively invokes the same candidate, leading to an exponential blowup. Although the limitation that the chain depth cannot exceed a specified maximum depth prevents...