{"id":"CVE-2026-45553","state":"PUBLISHED","title":"NiceGUI: Local file disclosure via Docutils file insertion in ui.restructured_text()","description":"NiceGUI is a Python-based UI framework. Prior to version 3.12.0, ui.restructured_text() renders reStructuredText server-side with Docutils without disabling file insertion directives. When a NiceGUI application passes attacker-controlled content to ui.restructured_text(), an attacker can use standard Docutils directives (include, csv-table with :file:, raw with :file:) to read local files readable by the NiceGUI server process. Applications that only pass trusted static strings to ui.restructured_text() are not affected. This issue has been patched in version 3.12.0.","publishedAt":"2026-06-02T15:34:39.897Z","updatedAt":"2026-06-03T13:49:28.209Z","severity":{"score":7.5,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","source":"GitHub_M"},"assigner":"GitHub_M","products":["zauberzeug nicegui"],"affected":[{"vendor":"zauberzeug","product":"nicegui","versions":[{"version":"< 3.12.0","status":"affected"}]}],"references":["https://github.com/zauberzeug/nicegui/security/advisories/GHSA-jfrm-rx66-g536","https://github.com/zauberzeug/nicegui/releases/tag/v3.12.0"],"weaknesses":["CWE-200"],"ingestedAt":"2026-10-29T20:12:07.131Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/45xxx/CVE-2026-45553.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-45553","state":"PUBLISHED","datePublished":"2026-06-02T15:34:39.897Z","dateUpdated":"2026-06-03T13:49:28.209Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-05-12T17:48:47.880Z"},"containers":{"cna":{"title":"NiceGUI: Local file disclosure via Docutils file insertion in ui.restructured_text()","descriptions":[{"lang":"en","value":"NiceGUI is a Python-based UI framework. Prior to version 3.12.0, ui.restructured_text() renders reStructuredText server-side with Docutils without disabling file insertion directives. When a NiceGUI application passes attacker-controlled content to ui.restructured_text(), an attacker can use standard Docutils directives (include, csv-table with :file:, raw with :file:) to read local files readable by the NiceGUI server process. Applications that only pass trusted static strings to ui.restructured_text() are not affected. This issue has been patched in version 3.12.0."}],"affected":[{"vendor":"zauberzeug","product":"nicegui","versions":[{"version":"< 3.12.0","status":"affected"}]}],"references":[{"url":"https://github.com/zauberzeug/nicegui/security/advisories/GHSA-jfrm-rx66-g536","name":"https://github.com/zauberzeug/nicegui/security/advisories/GHSA-jfrm-rx66-g536","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/zauberzeug/nicegui/releases/tag/v3.12.0","name":"https://github.com/zauberzeug/nicegui/releases/tag/v3.12.0","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":7.5,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-200","lang":"en","description":"CWE-200: Exposure of Sensitive Information to an Unauthorized Actor","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-06-02T15:34:39.897Z"},"source":{"advisory":"GHSA-jfrm-rx66-g536","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-06-03T13:49:17.577124Z","id":"CVE-2026-45553","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-06-03T13:49:28.209Z"}}]}}}