Linux Distros Unpatched Vulnerability : CVE-2026-105830

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - league/commonmark from 2.0.0 before 2.10.2 contains a quadratic-time denial of service vulnerability in the GitHub Flavored Markdown Table extension's...

DEBIAN-CVE-2026-105830

league/commonmark from 2.0.0 before 2.10.2 contains a quadratic-time denial of service vulnerability in the GitHub Flavored Markdown Table extension's TableStartParser::tryStart block-start scan. Unauthenticated attackers can submit a large paragraph of pipe-free lines not starting with letters,...

CVE-2026-105830

league/commonmark from 2.0.0 before 2.10.2 contains a quadratic-time denial of service vulnerability in the GitHub Flavored Markdown Table extension's TableStartParser::tryStart block-start scan. Unauthenticated attackers can submit a large paragraph of pipe-free lines not starting with letters,...

CVE-2026-105830

league/commonmark from 2.0.0 before 2.10.2 contains a quadratic-time denial of service vulnerability in the GitHub Flavored Markdown Table extension's TableStartParser::tryStart block-start scan. Unauthenticated attackers can submit a large paragraph of pipe-free lines not starting with letters,...

UBUNTU-CVE-2026-105830

league/commonmark from 2.0.0 before 2.10.2 contains a quadratic-time denial of service vulnerability in the GitHub Flavored Markdown Table extension's TableStartParser::tryStart block-start scan. Unauthenticated attackers can submit a large paragraph of pipe-free lines not starting with letters,...

EUVD-2026-95017

league/commonmark from 2.0.0 before 2.10.2 contains a quadratic-time denial of service vulnerability in the GitHub Flavored Markdown Table extension's TableStartParser::tryStart block-start scan. Unauthenticated attackers can submit a large paragraph of pipe-free lines not starting with letters,...

CVE-2026-105830

league/commonmark from 2.0.0 before 2.10.2 contains a quadratic-time denial of service vulnerability in the GitHub Flavored Markdown Table extension's TableStartParser::tryStart block-start scan. Unauthenticated attackers can submit a large paragraph of pipe-free lines not starting with letters,...

CVE-2026-105830

league/commonmark from 2.0.0 before 2.10.2 contains a quadratic-time denial of service vulnerability in the GitHub Flavored Markdown Table extension's TableStartParser::tryStart block-start scan. Unauthenticated attackers can submit a large paragraph of pipe-free lines not starting with letters,...

CVE-2026-105830: Uncontrolled Resource Consumption

league/commonmark from 2.0.0 before 2.10.2 contains a quadratic-time denial of service vulnerability in the GitHub Flavored Markdown Table extension's TableStartParser::tryStart block-start scan. Unauthenticated attackers can submit a large paragraph of pipe-free lines not starting with letters,...

Inefficient Algorithmic Complexity

Overview league/commonmark is a PHP-based Markdown parser which supports the full CommonMark spec. It is based on the CommonMark JS reference implementation. Affected versions of this package are vulnerable to Inefficient Algorithmic Complexity in the TableStartParser::tryStart function. An...

GHSA-3Q6V-R5MR-HXV8 league/commonmark: Quadratic-time denial of service in the GitHub Flavored Markdown Table extension block-start scan

Summary league/commonmark's GitHub Flavored Markdown Table extension registers TableStartParser as a block-start parser. While a paragraph is the active block, the core block parser calls TableStartParser::tryStart on every non-blank line. Its first action fetches the entire growing paragraph...

league/commonmark: Quadratic-time denial of service in the GitHub Flavored Markdown Table extension block-start scan

Summary league/commonmark's GitHub Flavored Markdown Table extension registers TableStartParser as a block-start parser. While a paragraph is the active block, the core block parser calls TableStartParser::tryStart on every non-blank line. Its first action fetches the entire growing paragraph...

PT-2026-107989

Name of the Vulnerable Software and Affected Versions league/commonmark versions 2.0.0 through 2.10.1 Description A quadratic-time denial of service issue exists in the GitHub Flavored Markdown Table extension. Unauthenticated attackers can trigger this by submitting a large paragraph consisting ...