{"id":"CVE-2026-111059","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-111059","generatedAt":"2026-10-28T01:12:05.438Z","title":"From 3.0.0 until 3.2.11, mr.Markdown converts attacker-controlled Markdown to HTML without sanitizing raw HTML before assigning it to an ipywidgets.HTML sink.","description":"Mercury is a Python framework for sharing Jupyter notebooks as web applications and dashboards. From 3.0.0 until 3.2.11, mr.Markdown converts attacker-controlled Markdown to HTML without sanitizing raw HTML before assigning it to an ipywidgets.HTML sink. Event-handler attributes and other active HTML can therefore reach the DOM and execute when another user views the application. This issue is fixed in version 3.2.11.","published":"2026-10-19T17:17:03.000Z","lastModified":"2026-10-20T17:17:29.000Z","status":"Awaiting Analysis","sourceIdentifier":"security-advisories@github.com","cvss":{"version":"3.1","score":6.1,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"},"cwe":["CWE-79","CWE-116"],"affected":[],"epss":{"score":0.00284,"percentile":0.20701,"date":"2026-10-26","history":[{"date":"2026-10-20","score":0.00284,"percentile":0.19651}]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (0.28%). Track it; it rarely justifies an emergency change on its own."},"changes":[{"kind":"new","label":"New CVE","at":"2026-10-19T17:17:03.000Z","detail":{"score":"6.1","severity":"MEDIUM","publishedAt":"2026-10-19T17:17:02.940Z"},"summary":"New CVE, medium severity (CVSS 6.1)."}],"references":[{"url":"https://github.com/mljar/mercury/commit/c798a85924e6614c6fea7afe5a560e4554a1d09b","source":"security-advisories@github.com"},{"url":"https://github.com/mljar/mercury/releases/tag/v3.2.11","source":"security-advisories@github.com"},{"url":"https://github.com/mljar/mercury/security/advisories/GHSA-2658-85cv-9wwq","source":"security-advisories@github.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-111059","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}