MI
Product
mistune
by lepture · last CVE Oct 22, 2026
26
CVEs
0
On KEV
8.6
Max CVSS
9
New 30D
Severity mix
Critical 0High 12Medium 14Low 0
Watch

Add mistune to your stack to get only the CVEs that touch what you run.

CVECVSSEPSSPublishedSummary · affected versions
CVE-2026-115353
New
8.6
0%
Oct 22
Mistune before 3.3.0 Path Traversal via include Directive
Affected: before 3.3.0
CVE-2026-115355
New
7.5
0%
Oct 22
Mistune before 3.3.0 Path Traversal and XSS via Include Directive
Affected: before 3.3.0
CVE-2026-115352
New
7.5
0%
Oct 22
Mistune before 3.3.0 Quadratic-Time DoS via Unmatched Brackets in Inline Parser
Affected: before 3.3.0
CVE-2026-115349
New
7.5
0%
Oct 22
Mistune 3.0.0 before 3.3.0 Denial of Service via Nested Bracket Parsing
Affected: 3.0.0 before 3.3.0
CVE-2026-115348
New
7.5
0%
Oct 22
Mistune before 3.3.0 Quadratic-Time DoS via parse_link_text
Affected: 3.0.0 before 3.3.0
CVE-2026-115347
New
7.5
0%
Oct 22
Mistune before 3.3.0 Quadratic Denial of Service via parse_link_text
Affected: before 3.3.0
CVE-2026-76098
7.5
0%
Aug 24
Mistune has Denial of Service — RecursionError via Excessive Emphasis Markers in Markdown
Affected: >= 3.3.0, < 3.3.3
CVE-2026-59928
7.5
1%
Jul 8
Mistune block_parser: quadratic-time parsing on long lists of repeated reference-link definitions
Affected: < 3.3.0
CVE-2026-59925
7.5
1%
Jul 8
inline_parser: quadratic-time parsing on long runs of `**x**` and `***x***` emphasis pairs
Affected: < 3.3.0
CVE-2026-59922
7.5
1%
Jul 8
Mistune plugins/formatting: quadratic-time parsing on long runs of `~~x~~`, `==x==`, and `^^x^^` markers (strikethrough / mark / insert)
Affected: < 3.3.0
CVE-2026-49851
7.5
1%
Jun 24
Mistune: Potential DoS via quadratic-time parsing in parse_link_text
Affected: < 3.3.0
CVE-2026-33079
7.5
1%
May 6
Mistune ReDoS in LINK_TITLE_RE allows denial of service with crafted Markdown titles
Affected: >=3.0.0a1, <= 3.2.0
CVE-2026-115354
New
6.5
0%
Oct 22
Mistune before 3.3.0 Arbitrary Local File Read via Include Directive
Affected: before 3.3.0
CVE-2026-115350
New
6.1
0%
Oct 22
Mistune before 3.3.0 Stored XSS via Include Directive HTML Files
Affected: before 3.3.0
CVE-2026-59929
6.1
0%
Jul 8
Mistune renderers/html.safe_url: HARMFUL_PROTOCOLS list misses legacy and chained schemes that historically chain to `javascript:` execution
Affected: < 3.3.0
CVE-2026-59926
6.1
0%
Jul 8
Mistune: XSS via unescaped class option in Admonition directive
Affected: < 3.2.1
CVE-2026-59923
6.1
0%
Jul 8
Mistune: XSS via percent-encoded javascript URI bypass in safe_url()
Affected: < 3.3.0
CVE-2026-44898
6.1
0%
May 26
Mistune TOC Anchor Injection XSS
Affected: < 3.2.1
CVE-2026-44897
6.1
0%
May 26
Mistune Heading ID Attribute Injection XSS
Affected: < 3.2.1
CVE-2026-44708
6.1
0%
May 26
Mistune Math Plugin XSS Escape Bypass
Affected: < 3.2.1
CVE-2026-44899
6.1
0%
May 26
Mistune Image Directive CSS Injection Vulnerability
Affected: < 3.2.1
CVE-2026-44896
6.1
0%
May 26
Mistune: XSS via unescaped figclass/figwidth in Figure directive
Affected: < 3.2.1
CVE-2026-59924
5.9
0%
Jul 8
Mistune: Arbitrary File Read via Include directive path traversal
Affected: < 3.3.0
CVE-2026-59927
5.3
1%
Jul 8
Mistune directives/include: mutual `.. include::` recursion crashes the renderer with `RecursionError`, denial of service via two attacker-controlled markdown files
Affected: < 3.3.0
CVE-2026-115351
New
4.7
0%
Oct 22
Mistune 3.2.1 before 3.3.0 CSS Injection via Figure Directive figwidth Option
Affected: 3.2.1 before 3.3.0
CVE-2026-59930
4.3
0%
Jul 8
Mistune toc / TableOfContents directive: heading IDs use predictable `toc_N` numbering with no slugification, allowing collision with attacker-controlled `id="toc_N"` content
Affected: < 3.3.0
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