{"id":"CVE-2026-54707","state":"PUBLISHED","title":"OnionShare Receive mode writes uploaded files even when file uploads are disabled","description":"OnionShare is an open source tool that lets you securely and anonymously share files, host websites, and chat with friends using the Tor network. Prior to 2.6.4, OnionShare CLI/Desktop does not enforce the Receive mode disable_files setting in cli/onionshare_cli/web/receive_mode.py, where ReceiveModeRequest._get_file_stream() writes multipart file[] data to disk despite the text-only setting. This issue is fixed in version 2.6.4.","publishedAt":"2026-07-31T16:28:06.628Z","updatedAt":"2026-07-31T23:28:15.094Z","severity":{"score":5.4,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L","source":"GitHub_M"},"assigner":"GitHub_M","products":["onionshare onionshare"],"affected":[{"vendor":"onionshare","product":"onionshare","versions":[{"version":"< 2.6.4","status":"affected"}]}],"references":["https://github.com/onionshare/onionshare/security/advisories/GHSA-v833-3823-cmhp","https://github.com/onionshare/onionshare/commit/a090e97193efc91fbeac9dace7793ea568b83cf5","https://github.com/onionshare/onionshare/releases/tag/v2.6.4"],"weaknesses":["CWE-863"],"ingestedAt":"2026-10-29T20:12:24.861Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/54xxx/CVE-2026-54707.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-54707","state":"PUBLISHED","datePublished":"2026-07-31T16:28:06.628Z","dateUpdated":"2026-07-31T23:28:15.094Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-06-15T22:58:06.563Z"},"containers":{"cna":{"title":"OnionShare Receive mode writes uploaded files even when file uploads are disabled","descriptions":[{"lang":"en","value":"OnionShare is an open source tool that lets you securely and anonymously share files, host websites, and chat with friends using the Tor network. Prior to 2.6.4, OnionShare CLI/Desktop does not enforce the Receive mode disable_files setting in cli/onionshare_cli/web/receive_mode.py, where ReceiveModeRequest._get_file_stream() writes multipart file[] data to disk despite the text-only setting. This issue is fixed in version 2.6.4."}],"affected":[{"vendor":"onionshare","product":"onionshare","versions":[{"version":"< 2.6.4","status":"affected"}]}],"references":[{"url":"https://github.com/onionshare/onionshare/security/advisories/GHSA-v833-3823-cmhp","name":"https://github.com/onionshare/onionshare/security/advisories/GHSA-v833-3823-cmhp","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/onionshare/onionshare/commit/a090e97193efc91fbeac9dace7793ea568b83cf5","name":"https://github.com/onionshare/onionshare/commit/a090e97193efc91fbeac9dace7793ea568b83cf5","tags":["x_refsource_MISC"]},{"url":"https://github.com/onionshare/onionshare/releases/tag/v2.6.4","name":"https://github.com/onionshare/onionshare/releases/tag/v2.6.4","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"LOW","baseScore":5.4,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"LOW","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-863","lang":"en","description":"CWE-863: Incorrect Authorization","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-07-31T16:28:06.628Z"},"source":{"advisory":"GHSA-v833-3823-cmhp","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","references":[{"url":"https://github.com/onionshare/onionshare/security/advisories/GHSA-v833-3823-cmhp","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-07-31T23:27:45.200593Z","id":"CVE-2026-54707","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-07-31T23:28:15.094Z"}}]}}}