https://cve.radiocsirt.org Contains only the most 10 recent entries. http://www.rssboard.org/rss-specification python-feedgen en Sun, 04 Oct 2026 08:26:28 +0000 https://cve.radiocsirt.org/vuln/euvd-2026-372627 EUVD-2026-372627 https://cve.radiocsirt.org/vuln/euvd-2026-372627 https://cve.radiocsirt.org/vuln/fkie_cve-2026-86434 <p>league/commonmark versions &gt;= 2.0.0 and &lt; 2.8.4 (patched in 2.9.0) contain a denial of service vulnerability in UniqueSlugNormalizer::normalize(), which restarts its numeric-suffix search from 1 on every slug collision, resulting in O(K^2) time complexity for K headings that collapse to the same base slug. The vulnerable path is reached when HeadingPermalinkExtension, FootnoteExtension, or TableOfContentsExtension is registered. An unauthenticated attacker can force many headings onto a single base slug (e.g., via empty ATX headings, identical heading text, or punctuation-only headings) in a small Markdown document, consuming excessive CPU and denying service.</p> <p>league/commonmark versions &gt;= 2.0.0 and &lt; 2.8.4 (patched in 2.9.0) contain a denial of service vulnerability in UniqueSlugNormalizer::normalize(), which restarts its numeric-suffix search from 1 on every slug collision, resulting in O(K^2) time complexity for K headings that collapse to the same base slug. The vulnerable path is reached when HeadingPermalinkExtension, FootnoteExtension, or TableOfContentsExtension is registered. An unauthenticated attacker can force many headings onto a single base slug (e.g., via empty ATX headings, identical heading text, or punctuation-only headings) in a small Markdown document, consuming excessive CPU and denying service.</p> https://cve.radiocsirt.org/vuln/fkie_cve-2026-86434 https://cve.radiocsirt.org/vuln/ghsa-jcmh-chhq-rh2x <p>league/commonmark versions &gt;= 2.0.0 and &lt; 2.8.4 (patched in 2.9.0) contain a denial of service vulnerability in UniqueSlugNormalizer::normalize(), which restarts its numeric-suffix search from 1 on every slug collision, resulting in O(K^2) time complexity for K headings that collapse to the same base slug. The vulnerable path is reached when HeadingPermalinkExtension, FootnoteExtension, or TableOfContentsExtension is registered. An unauthenticated attacker can force many headings onto a single base slug (e.g., via empty ATX headings, identical heading text, or punctuation-only headings) in a small Markdown document, consuming excessive CPU and denying service.</p> <p>league/commonmark versions &gt;= 2.0.0 and &lt; 2.8.4 (patched in 2.9.0) contain a denial of service vulnerability in UniqueSlugNormalizer::normalize(), which restarts its numeric-suffix search from 1 on every slug collision, resulting in O(K^2) time complexity for K headings that collapse to the same base slug. The vulnerable path is reached when HeadingPermalinkExtension, FootnoteExtension, or TableOfContentsExtension is registered. An unauthenticated attacker can force many headings onto a single base slug (e.g., via empty ATX headings, identical heading text, or punctuation-only headings) in a small Markdown document, consuming excessive CPU and denying service.</p> https://cve.radiocsirt.org/vuln/ghsa-jcmh-chhq-rh2x https://cve.radiocsirt.org/vuln/ubuntu-cve-2026-86434 <p><strong>Affected:</strong> Ubuntu:Pro:20.04:LTS: php-league-commonmark, Ubuntu:Pro:22.04:LTS: php-league-commonmark, Ubuntu:Pro:24.04:LTS: php-league-commonmark, Ubuntu:26.04:LTS: php-league-commonmark</p> <p>league/commonmark versions &gt;= 2.0.0 and &lt; 2.8.4 (patched in 2.9.0) contain a denial of service vulnerability in UniqueSlugNormalizer::normalize(), which restarts its numeric-suffix search from 1 on every slug collision, resulting in O(K^2) time complexity for K headings that collapse to the same base slug. The vulnerable path is reached when HeadingPermalinkExtension, FootnoteExtension, or TableOfContentsExtension is registered. An unauthenticated attacker can force many headings onto a single base slug (e.g., via empty ATX headings, identical heading text, or punctuation-only headings) in a small Markdown document, consuming excessive CPU and denying service.</p> <p><strong>Affected:</strong> Ubuntu:Pro:20.04:LTS: php-league-commonmark, Ubuntu:Pro:22.04:LTS: php-league-commonmark, Ubuntu:Pro:24.04:LTS: php-league-commonmark, Ubuntu:26.04:LTS: php-league-commonmark</p> <p>league/commonmark versions &gt;= 2.0.0 and &lt; 2.8.4 (patched in 2.9.0) contain a denial of service vulnerability in UniqueSlugNormalizer::normalize(), which restarts its numeric-suffix search from 1 on every slug collision, resulting in O(K^2) time complexity for K headings that collapse to the same base slug. The vulnerable path is reached when HeadingPermalinkExtension, FootnoteExtension, or TableOfContentsExtension is registered. An unauthenticated attacker can force many headings onto a single base slug (e.g., via empty ATX headings, identical heading text, or punctuation-only headings) in a small Markdown document, consuming excessive CPU and denying service.</p> https://cve.radiocsirt.org/vuln/ubuntu-cve-2026-86434