{"id":"AZL-92214","summary":"CVE-2026-59926 affecting package python-mistune for versions less than 3.3.0-1","details":"Mistune is a Python Markdown parser with renderers and plugins. Prior to 3.2.1, render_admonition() in src/mistune/directives/admonition.py concatenates the Admonition directive :class: option into the HTML class attribute without escaping, allowing attribute injection and cross-site scripting even when HTMLRenderer escape mode is enabled. This issue is fixed in version 3.2.1.","modified":"2026-08-30T05:26:50Z","published":"2026-07-08T17:17:28Z","upstream":["CVE-2026-59926"],"references":[{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-59926"}],"affected":[{"package":{"name":"python-mistune","ecosystem":"Azure Linux:3","purl":"pkg:rpm/azure-linux/python-mistune"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.3.0-1"}]}],"database_specific":{"source":"https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-92214.json"}}],"schema_version":"1.9.0"}