{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-111059","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","state":"PUBLISHED","assignerShortName":"GitHub_M","dateReserved":"2026-10-15T12:47:13.664Z","datePublished":"2026-10-19T16:11:29.745Z","dateUpdated":"2026-10-20T16:11:40.067Z"},"containers":{"cna":{"title":"Mercury: Stored / DOM Cross-Site Scripting (XSS): mr.Markdown renders untrusted content as raw, unsanitized HTML","problemTypes":[{"descriptions":[{"cweId":"CWE-79","lang":"en","description":"CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-116","lang":"en","description":"CWE-116: Improper Encoding or Escaping of Output","type":"CWE"}]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":6.1,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"CHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","version":"3.1"}}],"references":[{"name":"https://github.com/mljar/mercury/security/advisories/GHSA-2658-85cv-9wwq","tags":["x_refsource_CONFIRM"],"url":"https://github.com/mljar/mercury/security/advisories/GHSA-2658-85cv-9wwq"},{"name":"https://github.com/mljar/mercury/commit/c798a85924e6614c6fea7afe5a560e4554a1d09b","tags":["x_refsource_MISC"],"url":"https://github.com/mljar/mercury/commit/c798a85924e6614c6fea7afe5a560e4554a1d09b"},{"name":"https://github.com/mljar/mercury/releases/tag/v3.2.11","tags":["x_refsource_MISC"],"url":"https://github.com/mljar/mercury/releases/tag/v3.2.11"}],"affected":[{"vendor":"mljar","product":"mercury","versions":[{"version":">= 3.0.0, < 3.2.11","status":"affected"}]}],"providerMetadata":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2026-10-19T16:11:29.745Z"},"descriptions":[{"lang":"en","value":"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."}],"source":{"advisory":"GHSA-2658-85cv-9wwq","discovery":"UNKNOWN"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-10-20T15:10:08.190617Z","id":"CVE-2026-111059","options":[{"Exploitation":"none"},{"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":"2026-10-20T16:11:40.067Z"}}]}}