cfnow (>=0.0.1, <=0.0.6), coreplus (0.1.0) +20 more potentially affected by CVE-2026-49851 via mistune (2.0.4)

mistune PYPI version 2.0.4 is affected by a known vulnerability. The following packages have a transitive dependency on mistune and may be impacted: - cfnow =0.0.1, =0.1.1rc3, =0.1.0, =1.4.0, =4.0.2, =2.2.1, =0.1.0, =0.1.0, =0.0.3, =1.0.4, =1.0.7 and more Source cves: CVE-2026-49851 Source...

arvados-cwl-runner (>=2.6.0rc3, <=2.7.4), db-classifier (0.0.2) +18 more potentially affected by CVE-2026-49851 via mistune (2.0.5)

mistune PYPI version 2.0.5 is affected by a known vulnerability. The following packages have a transitive dependency on mistune and may be impacted: - arvados-cwl-runner =2.6.0rc3, =2.0.5, =4.1.0, =0.8.4, =2.1.1, =1.0.0, =2.2.0, =0.0.1, =2.4.1rc3, =8.3.20221209165047, =8.5.20240102191335 - sitefa...

guide-md (>=0.0.6, <=0.1.20), zh-doclint (>=0.1.0, <=0.1.2) +1 more potentially affected by CVE-2026-49851 via mistune (0.7.3)

mistune PYPI version 0.7.3 is affected by a known vulnerability. The following packages have a transitive dependency on mistune and may be impacted: - guide-md =0.0.6, =0.1.0, =0.1.2, =0.3.2 Source cves: CVE-2026-49851 Source advisory: OSV:PYSEC-2026-2652...

kart (>=0.8.0, <=0.8.1) potentially affected by CVE-2026-49851 via mistune (2.0.0a6)

mistune PYPI version 2.0.0a6 is affected by a known vulnerability. The following packages have a transitive dependency on mistune and may be impacted: - kart =0.8.0, =0.8.1 Source cves: CVE-2026-49851 Source advisory: OSV:PYSEC-2026-2652...

engrave (>=2.0.0, <=2.0.4), inka (>=2.1.0, <=2.2.0) +1 more potentially affected by CVE-2026-49851 via mistune (2.0.2)

mistune PYPI version 2.0.2 is affected by a known vulnerability. The following packages have a transitive dependency on mistune and may be impacted: - engrave =2.0.0, =2.1.0, =0.0.0.dev0, =1.13.0a1.dev3 Source cves: CVE-2026-49851 Source advisory: OSV:PYSEC-2026-2652...

cateye (>=0.3.4, <=0.3.8), docwriter (>=0.1.0, <=1.0.2) +6 more potentially affected by CVE-2026-49851 via mistune (0.8.3)

mistune PYPI version 0.8.3 is affected by a known vulnerability. The following packages have a transitive dependency on mistune and may be impacted: - cateye =0.3.4, =0.1.0, =1.1.2, =0.1.0.dev0, =0.0.10, =0.0.1, =0.6.0, =0.15.0 Source cves: CVE-2026-49851 Source advisory: OSV:PYSEC-2026-2652...

Mistune: Potential DoS via quadratic-time parsing in parse_link_text

SummaryMistune is vulnerable to a CPU exhaustion DoS due to superlinear approximately On² behavior in parselinktext. A relatively small input consisting of repeated characters causes significant parsing slowdown. Affected componentmistune/inlineparser.py → parselinktext DescriptionWhen parsing...

alphapulldown (>=0.21.2, <=0.30.7), arisu (>=0.1.1, <=0.1.2) +51 more potentially affected by CVE-2026-49851 via mistune (2.1.0)

mistune PYPI version 2.1.0 is affected by a known vulnerability. The following packages have a transitive dependency on mistune and may be impacted: - alphapulldown =0.21.2, =0.1.1, =0.0.1, =0.1.0, =0.0.1, =0.1.1, =4.2.93, =2.0.4, =5.2.0a0, =0.0.1, =3.7.1, =0.8.0, =0.8.5 and more Source cves:...

PYSEC-2026-2652 Mistune: Potential DoS via quadratic-time parsing in parse_link_text

Summary Mistune is vulnerable to a CPU exhaustion DoS due to superlinear approximately On² behavior in parselinktext. A relatively small input consisting of repeated characters causes significant parsing slowdown. Affected component mistune/inlineparser.py → parselinktext Description When parsing...

PYSEC-2026-2651 Mistune has a ReDoS in LINK_TITLE_RE that allows denial of service via crafted Markdown input

Summary A ReDoS Regular Expression Denial of Service vulnerability in LINKTITLERE allows an attacker who can supply Markdown for parsing to cause denial of service. A crafted 58-byte Markdown document blocks the parser for approximately 6 seconds measured on Apple M2, Python 3.14.3, with...

ai-shell (>=0.1.0, <=1.0.4), almax-common (>=0.9.5, <=1.0.2) +137 more potentially affected by CVE-2026-33079 via mistune (>=3.0.0rc5, <=3.2.0)

mistune PYPI version =3.0.0rc5, =0.1.0, =0.9.5, =3.0.0rc3, =3.2.1b1, =1.0.1, =1.0.1, =0.1.0, =0.0.1, =0.1.0, =0.0.2, =1.0.0.1, =0.0.1, =0.1.10, =0.26.0, =0.27.0 and more Source cves: CVE-2026-33079 Source advisory: OSV:PYSEC-2026-2651...

Mistune has a ReDoS in LINK_TITLE_RE that allows denial of service via crafted Markdown input

SummaryA ReDoS Regular Expression Denial of Service vulnerability in LINKTITLERE allows an attacker who can supply Markdown for parsing to cause denial of service. A crafted 58-byte Markdown document blocks the parser for approximately 6 seconds measured on Apple M2, Python 3.14.3, with exponenti...

PT-2026-59302

Summary Mistune is vulnerable to a CPU exhaustion DoS due to superlinear approximately On² behavior in parse link text. A relatively small input consisting of repeated characters causes significant parsing slowdown. Affected component mistune/inline parser.py → parse link text Description When...

CVE-2026-59929

A flaw was found in Mistune, a Python Markdown parser. The safeurl filter, intended to prevent malicious Uniform Resource Locators URLs, did not adequately block all potentially harmful schemes. This oversight allows an attacker to embed specially crafted URLs using legacy or chained schemes with...

CVE-2026-59923

A flaw was found in Mistune, a Python Markdown parser. This vulnerability allows an attacker to bypass URL protections by using specially crafted Markdown links or images containing percent-encoded javascript URIs. This can lead to the execution of arbitrary scripts in the rendered HTML,...

CVE-2026-59930

A flaw was found in Mistune, a Python Markdown parser. The table of contents toc plugin and TableOfContents directive generate heading identifiers IDs as predictable values e.g., tocN without properly processing the heading text. This allows an attacker to control content with a colliding ID, whi...

SUSE CVE-2026-59922

Mistune is a Python Markdown parser with renderers and plugins. Prior to 3.3.0, a run of closed tilde, equals-sign, or caret marker pairs around a character causes quadratic work in src/mistune/plugins/formatting.py when the strikethrough, mark, or insert plugin scans for matching markers from ea...

SUSE CVE-2026-59923

Mistune is a Python Markdown parser with renderers and plugins. Prior to 3.3.0, HTMLRenderer.safeurl does not block percent-encoded javascript URIs, allowing attacker-supplied Markdown links or images to bypass URL protections and execute script in rendered HTML. This issue is fixed in version...

SUSE CVE-2026-59924

Mistune is a Python Markdown parser with renderers and plugins. Prior to 3.3.0, Include.parse joins and normalizes user-supplied include paths without verifying that the result remains within the intended markdown directory, allowing crafted include paths to access files outside that directory wh...

SUSE CVE-2026-59925

Mistune is a Python Markdown parser with renderers and plugins. Prior to 3.3.0, long sequences of well-formed double-asterisk or triple-asterisk emphasis pairs around a character cause quadratic work in src/mistune/inlineparser.py because the parser scans forward for matching close markers from...