{"id":"CVE-2026-54706","state":"PUBLISHED","title":"OnionShare follows symlinks in shared directories, allowing unintended disclosure of local files","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 follows symbolic links in cli/onionshare_cli/web/send_base_mode.py through SendBaseModeWeb.set_file_info() and stream_individual_file(), allowing remote recipients of Share or Website mode to read local files outside the selected directory. This issue is fixed in version 2.6.4.","publishedAt":"2026-07-31T16:30:58.062Z","updatedAt":"2026-07-31T19:00:44.128Z","severity":{"score":4.8,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:N/A:N","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-22p9-r2f5-22mf","https://github.com/onionshare/onionshare/commit/48f31cfac077fcc9c04c67c2a6dbf87d956f5eec","https://github.com/onionshare/onionshare/releases/tag/v2.6.4"],"weaknesses":["CWE-59"],"ingestedAt":"2026-10-29T20:12:24.861Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/54xxx/CVE-2026-54706.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-54706","state":"PUBLISHED","datePublished":"2026-07-31T16:30:58.062Z","dateUpdated":"2026-07-31T19:00:44.128Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-06-15T22:58:06.563Z"},"containers":{"cna":{"title":"OnionShare follows symlinks in shared directories, allowing unintended disclosure of local files","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 follows symbolic links in cli/onionshare_cli/web/send_base_mode.py through SendBaseModeWeb.set_file_info() and stream_individual_file(), allowing remote recipients of Share or Website mode to read local files outside the selected directory. 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-22p9-r2f5-22mf","name":"https://github.com/onionshare/onionshare/security/advisories/GHSA-22p9-r2f5-22mf","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/onionshare/onionshare/commit/48f31cfac077fcc9c04c67c2a6dbf87d956f5eec","name":"https://github.com/onionshare/onionshare/commit/48f31cfac077fcc9c04c67c2a6dbf87d956f5eec","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":"HIGH","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":4.8,"baseSeverity":"MEDIUM","confidentialityImpact":"HIGH","integrityImpact":"NONE","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:N/A:N","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-59","lang":"en","description":"CWE-59: Improper Link Resolution Before File Access ('Link Following')","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-07-31T16:30:58.062Z"},"source":{"advisory":"GHSA-22p9-r2f5-22mf","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","references":[{"url":"https://github.com/onionshare/onionshare/security/advisories/GHSA-22p9-r2f5-22mf","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-07-31T18:54:58.096662Z","id":"CVE-2026-54706","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":"2026-07-31T19:00:44.128Z"}}]}}}