{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-46338","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","state":"PUBLISHED","assignerShortName":"GitHub_M","dateReserved":"2026-05-13T18:37:30.990Z","datePublished":"2026-07-16T18:24:18.155Z","dateUpdated":"2026-07-17T17:52:57.729Z"},"containers":{"cna":{"title":"PyMdown Extensions: Regression in pymdownx.snippets reintroduces sibling-prefix path traversal bypass despite restrict_base_path","problemTypes":[{"descriptions":[{"cweId":"CWE-22","lang":"en","description":"CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')","type":"CWE"}]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":4.3,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N","version":"3.1"}}],"references":[{"name":"https://github.com/facelessuser/pymdown-extensions/security/advisories/GHSA-62q4-447f-wv8h","tags":["x_refsource_CONFIRM"],"url":"https://github.com/facelessuser/pymdown-extensions/security/advisories/GHSA-62q4-447f-wv8h"},{"name":"https://github.com/facelessuser/pymdown-extensions/commit/63b7835776d703d6c339cf2110d9888f676efc0c","tags":["x_refsource_MISC"],"url":"https://github.com/facelessuser/pymdown-extensions/commit/63b7835776d703d6c339cf2110d9888f676efc0c"},{"name":"https://github.com/facelessuser/pymdown-extensions/releases/tag/10.21.3","tags":["x_refsource_MISC"],"url":"https://github.com/facelessuser/pymdown-extensions/releases/tag/10.21.3"}],"affected":[{"vendor":"facelessuser","product":"pymdown-extensions","versions":[{"version":">= 10.0.1, < 10.21.3","status":"affected"}]}],"providerMetadata":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2026-07-16T18:24:18.155Z"},"descriptions":[{"lang":"en","value":"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.get_snippet_path() in pymdownx/snippets.py when `restrict_base_path: True`, allowing markdown snippet directives to read files from sibling paths that share the same base_path prefix, such as docs and docs_internal. This is a regression of CVE-2023-32309. This issue is fixed in version 10.21.3."}],"source":{"advisory":"GHSA-62q4-447f-wv8h","discovery":"UNKNOWN"}},"adp":[{"references":[{"url":"https://github.com/facelessuser/pymdown-extensions/security/advisories/GHSA-62q4-447f-wv8h","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-07-17T17:52:47.052382Z","id":"CVE-2026-46338","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-07-17T17:52:57.729Z"}}]}}