Priority HIGH 70
Mistune before 3.3.3 contains a denial of service vulnerability in InlineParser.parse_link that allows attackers to cause quadratic CPU growth by supplying balanced nested brackets.
CVSS 4.0MEDIUM 6.9· Network · No auth · No interaction · EPSS 0.00291 · Published 2026-11-03 · Partial fix · 3.3.3 CWE-400
Priority HIGH 71
Mistune from 3.3.0 before 3.3.4 contains a denial of service vulnerability that allows remote attackers to exhaust CPU through quadratic-time emphasis delimiter processing.
CVSS 4.0HIGH 8.7· Network · No auth · No interaction · EPSS 0.00619 · Published 2026-11-03 · Partial fix · 3.3.4 CWE-407
TI-2026-79442 CVE-2026-115355 · GHSA-8cqv-vvq2-6p8c · GHSA-h7ww-273w-6cm8 Priority MEDIUM 44
Mistune before 3.3.0 contains a path traversal vulnerability in the Include directive that allows attackers to read arbitrary files by supplying ../ sequences in include paths.
CVSS 4.0HIGH 8.7· Network · No auth · No interaction · EPSS 0.00461 · Published 2026-10-22 · Partial fix · 3.3.0 CWE-22
Priority MEDIUM 64
Mistune before 3.3.0 contains a path traversal vulnerability in the opt-in Include directive that allows attackers to read local files by supplying relative or absolute include paths.
CVSS 4.0HIGH 7.1· Network · No auth · User interaction · EPSS 0.0047 · Published 2026-10-22 · Partial fix · 3.3.0 CWE-22
Priority HIGH 79
Mistune before 3.3.0 contains a path traversal vulnerability in the RST include directive that allows attackers to read arbitrary files by supplying relative or absolute paths.
CVSS 4.0CRITICAL 9.2· Network · No auth · No interaction · EPSS 0.00388 · Published 2026-10-22 · Partial fix · 3.3.0 CWE-22
Priority MEDIUM 44
Mistune before 3.3.0 contains an algorithmic complexity vulnerability in the inline link parser that allows unauthenticated attackers to exhaust CPU by submitting long runs of unmatched '[' characters.
CVSS 4.0HIGH 8.7· Network · No auth · No interaction · EPSS 0.00439 · Published 2026-10-22 · Partial fix · 3.3.0 CWE-407
Priority MEDIUM 57
Mistune from 3.2.1 before 3.3.0 contains a CSS injection vulnerability that allows attackers controlling markdown input to inject arbitrary style declarations via the unvalidated figwidth option of the figure directive.
CVSS 4.0MEDIUM 5.3· Network · No auth · User interaction · EPSS 0.00221 · Published 2026-10-22 · Partial fix · 3.3.0 CWE-94
Priority LOW 23
Mistune before 3.3.0 contains a cross-site scripting vulnerability in the Include directive that emits included .html, .xhtml, or .htm file content as raw block_html tokens.
CVSS 4.0MEDIUM 5.3· Network · No auth · User interaction · EPSS 0.00188 · Published 2026-10-22 · Partial fix · 3.3.0 CWE-79
Priority MEDIUM 44
Mistune from 3.0.0 before 3.3.0 contains an algorithmic complexity denial of service vulnerability in the parse_link_text function in src/mistune/helpers.py.
CVSS 4.0HIGH 8.7· Network · No auth · No interaction · EPSS 0.00344 · Published 2026-10-22 · Partial fix · 3.3.0 CWE-1333
Priority MEDIUM 44
Mistune from 3.0.0 before 3.3.0 contains an algorithmic complexity vulnerability in the inline link parser's parse_link_text function that allows unauthenticated attackers to exhaust CPU with unbalanced brackets.
CVSS 4.0HIGH 8.7· Network · No auth · No interaction · EPSS 0.00438 · Published 2026-10-22 · Partial fix · 3.3.0 CWE-400
Priority MEDIUM 44
Mistune before 3.3.0 contains an inefficient algorithmic complexity vulnerability in parse_link_text that allows remote attackers to cause denial of service through unbalanced square brackets.
CVSS 4.0HIGH 8.7· Network · No auth · No interaction · EPSS 0.0041 · Published 2026-10-22 · Partial fix · 3.3.0 CWE-407
Priority HIGH 72
Mistune is a Python Markdown parser with renderers and plugins.
CVSS 3.1HIGH 7.5· Network · No auth · No interaction · EPSS 0.00488 · Published 2026-08-24 · Partial fix · 3.3.3 CWE-674
Priority LOW 31
Mistune is a Python Markdown parser with renderers and plugins.
CVSS 3.1MEDIUM 5.3· Network · No auth · No interaction · EPSS 0.00529 · Published 2026-07-08 · Partial fix · 3.3.0 CWE-674
Priority HIGH 72
Mistune is a Python Markdown parser with renderers and plugins.
CVSS 3.1HIGH 7.5· Network · No auth · No interaction · EPSS 0.00651 · Published 2026-07-08 · Partial fix · 3.3.0 CWE-1333
Priority LOW 27
Mistune is a Python Markdown parser with renderers and plugins.
CVSS 3.1MEDIUM 5.9· Network · No auth · No interaction · EPSS 0.00462 · Published 2026-07-08 · Partial fix · 3.3.0 CWE-22
Priority LOW 27
Mistune is a Python Markdown parser with renderers and plugins.
CVSS 3.1MEDIUM 6.1· Network · No auth · User interaction · EPSS 0.00341 · Published 2026-07-08 · Partial fix · 3.3.0 CWE-184
Priority MEDIUM 40
Mistune is a Python Markdown parser with renderers and plugins.
CVSS 3.1HIGH 7.5· Network · No auth · No interaction · EPSS 0.00644 · Published 2026-07-08 · Partial fix · 3.3.0 CWE-1333
Priority LOW 24
Mistune is a Python Markdown parser with renderers and plugins.
CVSS 4.0MEDIUM 5.3· Network · No auth · User interaction · EPSS 0.00327 · Published 2026-07-08 · Partial fix · 3.2.1, 3.3.0 CWE-79
Priority MEDIUM 60
Mistune is a Python Markdown parser with renderers and plugins.
CVSS 3.1MEDIUM 6.1· Network · No auth · User interaction · EPSS 0.00348 · Published 2026-07-08 · Partial fix · 3.3.0 CWE-79
Priority MEDIUM 53
Mistune is a Python Markdown parser with renderers and plugins.
CVSS 3.1MEDIUM 4.3· Network · No auth · User interaction · EPSS 0.00192 · Published 2026-07-08 · Partial fix · 3.3.0 CWE-1284
Priority HIGH 72
Mistune is a Python Markdown parser with renderers and plugins.
CVSS 3.1HIGH 7.5· Network · No auth · No interaction · EPSS 0.00644 · Published 2026-07-08 · Partial fix · 3.3.0 CWE-1333
Priority HIGH 77
Mistune is a Python Markdown parser with renderers and plugins.
CVSS 4.0HIGH 8.7· Network · No auth · No interaction · EPSS 0.0052 · Published 2026-06-24 · Partial fix · 3.3.0 CWE-400
Priority MEDIUM 60
Mistune is a Python Markdown parser with renderers and plugins.
CVSS 3.1MEDIUM 6.1· Network · No auth · User interaction · EPSS 0.00228 · Published 2026-05-26 · Partial fix · 3.2.1 CWE-79
Priority LOW 27
Mistune is a Python Markdown parser with renderers and plugins.
CVSS 3.1MEDIUM 6.1· Network · No auth · User interaction · EPSS 0.00228 · Published 2026-05-26 · Partial fix · 3.2.1 CWE-79
Priority MEDIUM 60
Mistune is a Python Markdown parser with renderers and plugins.
CVSS 3.1MEDIUM 6.1· Network · No auth · User interaction · EPSS 0.00228 · Published 2026-05-26 · Partial fix · 3.2.1 CWE-79
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