CVE-2026-46338

PyMdown Extensions is a set of extensions for the Python-Markdown markdown project. From 10.0.1 until 10.21.3, pymdownx.snippets uses a string-prefix containment check in SnippetPreprocessor.getsnippetpath in pymdownx/snippets.py when restrictbasepath: True, allowing markdown snippet directives t...

CVE-2026-46338

PyMdown Extensions is a set of extensions for the Python-Markdown markdown project. From 10.0.1 until 10.21.3, pymdownx.snippets uses a string-prefix containment check in SnippetPreprocessor.getsnippetpath in pymdownx/snippets.py when restrictbasepath: True, allowing markdown snippet directives t...

UBUNTU-CVE-2026-46338

PyMdown Extensions is a set of extensions for the Python-Markdown markdown project. From 10.0.1 until 10.21.3, pymdownx.snippets uses a string-prefix containment check in SnippetPreprocessor.getsnippetpath in pymdownx/snippets.py when restrictbasepath: True, allowing markdown snippet directives t...

CVE-2026-46338 PyMdown Extensions: Regression in pymdownx.snippets reintroduces sibling-prefix path traversal bypass despite restrict_base_path

PyMdown Extensions is a set of extensions for the Python-Markdown markdown project. From 10.0.1 until 10.21.3, pymdownx.snippets uses a string-prefix containment check in SnippetPreprocessor.getsnippetpath in pymdownx/snippets.py when restrictbasepath: True, allowing markdown snippet directives t...

adeso (>=0.0.1, <=0.0.4), anoteai (>=0.10.0, <=0.20.0) +72 more potentially affected by CVE-2026-46338 via pymdown-extensions (>=10.0.1, <=10.21.2)

pymdown-extensions PYPI version =10.0.1, =0.0.1, =0.10.0, =0.3.3rc4, =3.1.0, =0.0.11, =0.1.0, =0.1.1 - bias-ext-approval 0.1.0 - bias-ext-discussions 0.1.0 - bias-ext-emoji 0.1.0 - bias-ext-flags 0.1.0 - bias-ext-likes 0.1.0 - bias-ext-mentions 0.1.0 - bias-ext-notifications 0.1.0 - bias-ext-post...

CVE-2026-46338 PyMdown Extensions: Regression in pymdownx.snippets reintroduces sibling-prefix path traversal bypass despite restrict_base_path

PyMdown Extensions is a set of extensions for the Python-Markdown markdown project. From 10.0.1 until 10.21.3, pymdownx.snippets uses a string-prefix containment check in SnippetPreprocessor.getsnippetpath in pymdownx/snippets.py when restrictbasepath: True, allowing markdown snippet directives t...

CVE-2026-46338

PyMdown Extensions is a set of extensions for the Python-Markdown markdown project. From 10.0.1 until 10.21.3, pymdownx.snippets uses a string-prefix containment check in SnippetPreprocessor.getsnippetpath in pymdownx/snippets.py when "restrictbasepath: True", allowing markdown snippet directives...

CVE-2026-46338

PyMdown Extensions is a set of extensions for the Python-Markdown markdown project. From 10.0.1 until 10.21.3, pymdownx.snippets uses a string-prefix containment check in SnippetPreprocessor.getsnippetpath in pymdownx/snippets.py when restrictbasepath: True, allowing markdown snippet directives t...

CVE-2026-46338

PyMdown Extensions (pymdownx.snippets) contains a regression that reintroduces a sibling-prefix path traversal when restrict_base_path is True. From 10.0.1 through 10.21.2, get_snippet_path uses a string-prefix check (filename.startswith(base)) that can read files from sibling paths sharing the s...

CVE-2026-46338

PyMdown Extensions is a set of extensions for the Python-Markdown markdown project. From 10.0.1 until 10.21.3, pymdownx.snippets uses a string-prefix containment check in SnippetPreprocessor.getsnippetpath in pymdownx/snippets.py when restrictbasepath: True, allowing markdown snippet directives t...

CVE-2026-46338: Improper Limitation of a Pathname to a Restricted Directory

PyMdown Extensions is a set of extensions for the Python-Markdown markdown project. From 10.0.1 until 10.21.3, pymdownx.snippets uses a string-prefix containment check in SnippetPreprocessor.getsnippetpath in pymdownx/snippets.py when restrictbasepath: True, allowing markdown snippet directives t...

adeso (>=0.0.1, <=0.0.4), anoteai (>=0.10.0, <=0.20.0) +72 more potentially affected by CVE-2026-46338 via pymdown-extensions (>=10.0.1, <=10.21.2)

pymdown-extensions PYPI version =10.0.1, =0.0.1, =0.10.0, =0.3.3rc4, =3.1.0, =0.0.11, =0.1.0, =0.1.1 - bias-ext-approval 0.1.0 - bias-ext-discussions 0.1.0 - bias-ext-emoji 0.1.0 - bias-ext-flags 0.1.0 - bias-ext-likes 0.1.0 - bias-ext-mentions 0.1.0 - bias-ext-notifications 0.1.0 - bias-ext-post...

freckles (>=0.9.1, <=1.0.0), freckles-adapter-nsbl (>=0.9.0, <=1.0.0) +3 more potentially affected by CVE-2025-68142 via pymdown-extensions (6.0.0)

pymdown-extensions PYPI version 6.0.0 is affected by a known vulnerability. The following packages have a transitive dependency on pymdown-extensions and may be impacted: - freckles =0.9.1, =0.9.0, =0.9.0, =0.9.0, =1.0.0 Source cves: CVE-2025-68142 Source advisory: OSV:PYSEC-2026-1825...

docwriter (>=0.1.0, <=0.3.1) potentially affected by CVE-2025-68142 via pymdown-extensions (4.11.0)

pymdown-extensions PYPI version 4.11.0 is affected by a known vulnerability. The following packages have a transitive dependency on pymdown-extensions and may be impacted: - docwriter =0.1.0, =0.3.1 Source cves: CVE-2025-68142 Source advisory: OSV:PYSEC-2026-1825...

PYSEC-2026-1825 PyMdown Extensions has a ReDOS bug in its Figure Capture extension

Impact This issue describes a ReDOS bug found within the figure caption extension pymdownx.blocks.caption . In systems that take unchecked user content, this could cause long hangs when processing the data if a malicious payload was crafted. Patches This issue is patched in Release 10.16.1...

PyMdown Extensions has a ReDOS bug in its Figure Capture extension

ImpactThis issue describes a ReDOS bug found within the figure caption extension pymdownx.blocks.caption .In systems that take unchecked user content, this could cause long hangs when processing the data if a malicious payload was crafted. PatchesThis issue is patched in Release 10.16.1...

adze-modeler (0.0.1), arkindex-base-worker (>=0.3.3rc1, <=0.3.3rc3) +27 more potentially affected by CVE-2025-68142 via pymdown-extensions (9.11.0)

pymdown-extensions PYPI version 9.11.0 is affected by a known vulnerability. The following packages have a transitive dependency on pymdown-extensions and may be impacted: - adze-modeler 0.0.1 - arkindex-base-worker =0.3.3rc1, =0.2.0, =1.1.3, =0.3.3, =0.1.1, =0.2.4, =2.3.3, =0.4.0, =0.5.0, =0.6.1...

asn-nmap (0.1.9), iga (>=0.0.1, <=1.0.3) potentially affected by CVE-2025-68142 via pymdown-extensions (9.10.0)

pymdown-extensions PYPI version 9.10.0 is affected by a known vulnerability. The following packages have a transitive dependency on pymdown-extensions and may be impacted: - asn-nmap 0.1.9 - iga =0.0.1, =1.0.3 Source cves: CVE-2025-68142 Source advisory: OSV:PYSEC-2026-1825...

arctic-ai (0.1.0), arkindex-base-worker (>=0.3.2rc5, <=0.3.2) potentially affected by CVE-2025-68142 via pymdown-extensions (9.9.2)

pymdown-extensions PYPI version 9.9.2 is affected by a known vulnerability. The following packages have a transitive dependency on pymdown-extensions and may be impacted: - arctic-ai 0.1.0 - arkindex-base-worker =0.3.2rc5, =0.3.2 Source cves: CVE-2025-68142 Source advisory: OSV:PYSEC-2026-1825...

mkdocs-techdocs-core (1.2.0) potentially affected by CVE-2025-68142 via pymdown-extensions (9.9.1)

pymdown-extensions PYPI version 9.9.1 is affected by a known vulnerability. The following packages have a transitive dependency on pymdown-extensions and may be impacted: - mkdocs-techdocs-core 1.2.0 Source cves: CVE-2025-68142 Source advisory: OSV:PYSEC-2026-1825...