CVE-2026-49851 Mistune: Potential DoS via quadratic-time parsing in parse_link_text

Mistune is a Python Markdown parser with renderers and plugins. Prior to 3.3.0, Mistune is vulnerable to a CPU exhaustion DoS due to superlinear approximately On² behavior in parselinktext. When parsing Markdown containing many consecutive characters, parselinktext repeatedly scans the input usin...

PT-2026-52033

Name of the Vulnerable Software and Affected Versions Mistune versions prior to 3.3.0 Description A CPU exhaustion Denial of Service DoS occurs due to superlinear approximately On² behavior in the parse link text function. When processing Markdown containing numerous consecutive characters, the...

CVE-2026-53539

CVE-2026-53539 (Python-Multipart) affects the Python-Multipart streaming multipart parser. Prior to 0.0.30, parsing application/x-www-form-urlencoded bodies used a two-step field separator lookup, causing an O(B^2) worst-case workload per chunk when semicolon is used as the separator and no amper...

CVE-2026-53550

js-yaml is a JavaScript YAML parser and dumper. Prior to 4.2.0 and 3.15.0, a crafted YAML document can trigger algorithmic CPU exhaustion in js-yaml merge-key processing by repeating the same alias many times in a merge sequence. This causes quadratic parse-time behavior relative to input size an...

CVE-2026-53550

js-yaml is a JavaScript YAML parser and dumper. Prior to 4.2.0 and 3.15.0, a crafted YAML document can trigger algorithmic CPU exhaustion in js-yaml merge-key processing by repeating the same alias many times in a merge sequence. This causes quadratic parse-time behavior relative to input size an...

JS-YAML: Quadratic-complexity DoS in merge key handling via repeated aliases

Summary A crafted YAML document can trigger algorithmic CPU exhaustion in js-yaml merge-key processing by repeating the same alias many times in a merge sequence. This causes quadratic parse-time behavior relative to input size and can block a Node.js worker/event loop for seconds with a relative...

CVE-2026-44378

Botan (C++ cryptography library) is affected prior to version 3.12.0. Indefinite-length BER encodings could trigger quadratic parser behavior, even in structures that must be DER, leading to denial of service. The issue is fixed in 3.12.0. There are no explicit exploit details or in-the-wild expl...

CVE-2026-44378 Botan: Quadratic complexity decoding BER indefinite length encodings

Botan is a C++ cryptography library. Prior to 3.12.0, certain patterns of indefinite length encodings in BER data could cause quadratic behavior in the parser, resulting in a denial of service. Such BER encodings were accepted even in structures which are required to be encoded as DER, which...

CVE-2026-45186

A flaw was found in libexpat. When processing a specially crafted XML input containing a specific pattern of attributes, the parsing time increases quadratically due to checks for attribute name collisions. This consumes excessive CPU resources and eventually results in a denial of service...

golang.org/x/net/html has a Quadratic Parsing Complexity issue

The html.Parse function in golang.org/x/net/html has quadratic parsing complexity when processing certain inputs, which can lead to Denial of Service DoS if an attacker provides specially crafted HTML content...

tornado: Tornado Quadratic DoS via Crafted Multipart Parameters

A denial of service flaw has been discovered in the Tornado networking library. Affected versions of Tornado us an inefficient algorithm when parsing parameters for HTTP header values, potentially causing a DoS. The parseparam function in httputil.py is used to parse specific HTTP header values,...

AZL-76830 CVE-2025-47911 affecting package cf-cli for versions less than 8.4.0-27

The html.Parse function in golang.org/x/net/html has quadratic parsing complexity when processing certain inputs, which can lead to denial of service DoS if an attacker provides specially crafted HTML content...

AZL-76928 CVE-2025-47911 affecting package docker-buildx 0.14.0-8

The html.Parse function in golang.org/x/net/html has quadratic parsing complexity when processing certain inputs, which can lead to denial of service DoS if an attacker provides specially crafted HTML content...

AZL-77070 CVE-2025-47911 affecting package prometheus-adapter 0.12.0-4

The html.Parse function in golang.org/x/net/html has quadratic parsing complexity when processing certain inputs, which can lead to denial of service DoS if an attacker provides specially crafted HTML content...

AZL-77079 CVE-2025-47911 affecting package terraform for versions less than 1.3.2-29

The html.Parse function in golang.org/x/net/html has quadratic parsing complexity when processing certain inputs, which can lead to denial of service DoS if an attacker provides specially crafted HTML content...

AZL-77096 CVE-2025-47911 affecting package sriov-network-device-plugin 3.7.0-4

The html.Parse function in golang.org/x/net/html has quadratic parsing complexity when processing certain inputs, which can lead to denial of service DoS if an attacker provides specially crafted HTML content...

AZL-76796 CVE-2025-47911 affecting package cri-o 1.30.1-1

The html.Parse function in golang.org/x/net/html has quadratic parsing complexity when processing certain inputs, which can lead to denial of service DoS if an attacker provides specially crafted HTML content...

AZL-77099 CVE-2025-47911 affecting package telegraf 1.31.0-12

The html.Parse function in golang.org/x/net/html has quadratic parsing complexity when processing certain inputs, which can lead to denial of service DoS if an attacker provides specially crafted HTML content...

AZL-77019 CVE-2025-47911 affecting package kubevirt 1.6.3-3

The html.Parse function in golang.org/x/net/html has quadratic parsing complexity when processing certain inputs, which can lead to denial of service DoS if an attacker provides specially crafted HTML content...

AZL-76992 CVE-2025-47911 affecting package influxdb 2.7.5-10

The html.Parse function in golang.org/x/net/html has quadratic parsing complexity when processing certain inputs, which can lead to denial of service DoS if an attacker provides specially crafted HTML content...