CVE-2026-66062 SvelteKit: ReDoS (O(n^2)) in content negotiation — unauthenticated DoS via the Accept header

SvelteKit is a framework for rapidly developing robust, performant web applications using Svelte. Prior to 2.70.2, the content negotiation header parser used by SvelteKit's request handling for headers such as Accept uses a regular expression vulnerable to quadratic backtracking, so a maliciously...

Security Bulletin: Multiple vulnerabilities affect Data Virtualization on IBM Software Hub (July 2026 - Part 1 of 2)

Summary Multiple vulnerabilities have been addressed in Data Virtualization on IBM Software Hub. Note that Data Virtualization was named Watson Query on IBM Cloud Pak for Data version 4.8. Vulnerability Details CVEID:CVE-2026-27903 DESCRIPTION: minimatch is a minimal matching utility for converti...

Regular Expression Denial of Service (ReDoS)

Overview nltk is a Natural Language Toolkit NLTK is a Python package for natural language processing. Affected versions of this package are vulnerable to Regular Expression Denial of Service ReDoS via the FEATURES regex in nltk/corpus/reader/reviews.py. An attacker can hang...

K000162301: Grafana Labs vulnerability CVE-2026-27904

Security Advisory Description minimatch is a minimal matching utility for converting glob expressions into JavaScript RegExp objects. Prior to version 10.2.3, 9.0.7, 8.0.6, 7.4.8, 6.2.2, 5.1.8, 4.2.5, and 3.1.4, nested extglobs produce regexps with nested unbounded quantifiers e.g. ?:?:a|b, which...

Regular Expression Denial of Service (ReDoS)

Overview Affected versions of this package are vulnerable to Regular Expression Denial of Service ReDoS in the VALUE regex pattern within the selector parsing process. An attacker can cause excessive CPU consumption and block server threads by submitting specially crafted attribute selectors with...

PYSEC-2026-1979 Transformers vulnerable to ReDoS attack through its SETTING_RE variable

A Regular Expression Denial of Service ReDoS vulnerability was discovered in the huggingface/transformers repository, specifically in version 4.49.0. The vulnerability is due to inefficient regular expression complexity in the SETTINGRE variable within the transformers/commands/chat.py file. The...

CVE-2026-8159 multiparty vulnerable to ReDoS via filename parsing

[email protected] and lower versions are vulnerable to denial of service via regular expression backtracking in the Content-Disposition filename parameter parser. A crafted multipart upload with a long header value can cause regex matching to take seconds, blocking the event loop. Impact: any...

EUVD-2019-11408

Malware in sbrugna...

Regular Expression Denial of Service (ReDoS)

Overview markdown-it is a modern pluggable markdown parser. Affected versions of this package are vulnerable to Regular Expression Denial of Service ReDoS due to the use of the regex /+$/ in the linkify function. An attacker can supply a long sequence of characters followed by a non-matching...

CLSA-2025-1739904482 Fix CVE(s): CVE-2024-6232, CVE-2024-6923

SECURITY UPDATE: Regular expressions that allowed excessive backtracking during tarfile - debian/patches/CVE-2024-6232.patch: Fix header parsing vulnerability that could lead to ReDoS - CVE-2024-6923...

@octokit/plugin-paginate-rest has a Regular Expression in iterator Leads to ReDoS Vulnerability Due to Catastrophic Backtracking

Summary For the npm package @octokit/plugin-paginate-rest, when calling octokit.paginate.iterator, a specially crafted octokit instance—particularly with a malicious link parameter in the headers section of the request—can trigger a ReDoS attack. Details The issue occurs at line 39 of iterator.ts...

Important: python3

Issue Overview: There is a MEDIUM severity vulnerability affecting CPython. Regular expressions that allowed excessive backtracking during tarfile.TarFile header parsing are vulnerable to ReDoS via specifically-crafted tar archives. CVE-2024-6232 Affected Packages: python3 Note: This advisory is...

PT-2024-10840 · Nescalante · Url-Regex

Name of the Vulnerable Software and Affected Versions: nescalante urlregex versions up to 0.5.0 Description: A vulnerability was found in the nescalante urlregex component, affecting some unknown processing of the file index.js of the Backtracking component. The manipulation leads to inefficient...

DEBIAN-CVE-2024-4067

The NPM package micromatch prior to 4.0.8 is vulnerable to Regular Expression Denial of Service ReDoS. The vulnerability occurs in micromatch.braces in index.js because the pattern . will greedily match anything. By passing a malicious payload, the pattern matching will keep backtracking to the...

SUSE CVE-2022-24836

Nokogiri is an open source XML and HTML library for Ruby. Nokogiri = 1.13.4. There are no known workarounds for this issue...

Nokogiri 安全漏洞

Nokogiri is an open source software library for parsing HTML and XML in Ruby. A security vulnerability exists in versions prior to Nokogiri 1.13.4 that stems from its susceptibility to excessive backtracking when attempting to detect encoding in HTML documents...

PT-2022-4890

Name of the Vulnerable Software and Affected Versions Nokogiri versions prior to 1.13.4 Description The issue is related to an inefficient regular expression in the Nokogiri library, which can lead to excessive backtracking when detecting encoding in HTML documents. This can be exploited by a...

PT-2022-13660 · Gitlab · Gitlab Ce/Ee +1

Name of the Vulnerable Software and Affected Versions: GitLab CE/EE versions 13.1 through 14.7.7 GitLab CE/EE versions 14.8.0 through 14.8.5 GitLab CE/EE versions 14.9.0 through 14.9.2 Description: A potential DOS issue was discovered in GitLab CE/EE. The API to update an asset as a link from a...

DEBIAN-CVE-2021-32839

sqlparse is a non-validating SQL parser module for Python. In sqlparse versions 0.4.0 and 0.4.1 there is a regular Expression Denial of Service in sqlparse vulnerability. The regular expression may cause exponential backtracking on strings containing many repetitions of '\r\n' in SQL comments. On...

DEBIAN-CVE-2019-14232

An issue was discovered in Django 1.11.x before 1.11.23, 2.1.x before 2.1.11, and 2.2.x before 2.2.4. If django.utils.text.Truncator's chars and words methods were passed the html=True argument, they were extremely slow to evaluate certain inputs due to a catastrophic backtracking vulnerability i...