{"id":"CVE-2026-55147","state":"PUBLISHED","title":"LORIS has incorrect access checks in API for Imaging Browser","description":"LORIS (Longitudinal Online Research and Imaging System) is a self-hosted web application that provides data- and project-management for neuroimaging research. In versions from 22.0.0 prior to 27.0.4 and from 28.0.0 prior to 28.0.2, the `API` for the `imaging_browser` module permits edits to imaging data without checking the frontend permissions that restrict editing in Imaging Browser. An authenticated `API` caller can therefore modify imaging data without the required edit authorization. Deployments that no longer use the `API` can disable it to remove access to this endpoint. This issue is fixed in versions 27.0.4 and 28.0.2.","publishedAt":"2026-10-30T21:29:38.725Z","updatedAt":"2026-10-30T21:29:38.725Z","severity":{"score":6.3,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L","source":"GitHub_M"},"assigner":"GitHub_M","products":["aces Loris"],"affected":[{"vendor":"aces","product":"Loris","versions":[{"version":">= 22.0.0, < 27.0.4","status":"affected"},{"version":">= 28.0.0, < 28.0.2","status":"affected"}]}],"references":["https://github.com/aces/Loris/security/advisories/GHSA-m48r-jv24-jjcx","https://github.com/aces/Loris/pull/10531","https://github.com/aces/Loris/commit/b13053597530ee33fbced35085d2490bc9ccc03a","https://github.com/aces/Loris/releases/tag/v27.0.4","https://github.com/aces/Loris/releases/tag/v28.0.2"],"weaknesses":["CWE-862"],"ingestedAt":"2026-10-30T21:40:06.258Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/55xxx/CVE-2026-55147.json","commit":"3015a37e775e333f27fc0502d46a4d327b1c08a8","baselineCommit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-55147","state":"PUBLISHED","datePublished":"2026-10-30T21:29:38.725Z","dateUpdated":"2026-10-30T21:29:38.725Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-06-16T15:13:28.164Z"},"containers":{"cna":{"title":"LORIS has incorrect access checks in API for Imaging Browser","descriptions":[{"lang":"en","value":"LORIS (Longitudinal Online Research and Imaging System) is a self-hosted web application that provides data- and project-management for neuroimaging research. In versions from 22.0.0 prior to 27.0.4 and from 28.0.0 prior to 28.0.2, the `API` for the `imaging_browser` module permits edits to imaging data without checking the frontend permissions that restrict editing in Imaging Browser. An authenticated `API` caller can therefore modify imaging data without the required edit authorization. Deployments that no longer use the `API` can disable it to remove access to this endpoint. This issue is fixed in versions 27.0.4 and 28.0.2."}],"affected":[{"vendor":"aces","product":"Loris","versions":[{"version":">= 22.0.0, < 27.0.4","status":"affected"},{"version":">= 28.0.0, < 28.0.2","status":"affected"}]}],"references":[{"url":"https://github.com/aces/Loris/security/advisories/GHSA-m48r-jv24-jjcx","name":"https://github.com/aces/Loris/security/advisories/GHSA-m48r-jv24-jjcx","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/aces/Loris/pull/10531","name":"https://github.com/aces/Loris/pull/10531","tags":["x_refsource_MISC"]},{"url":"https://github.com/aces/Loris/commit/b13053597530ee33fbced35085d2490bc9ccc03a","name":"https://github.com/aces/Loris/commit/b13053597530ee33fbced35085d2490bc9ccc03a","tags":["x_refsource_MISC"]},{"url":"https://github.com/aces/Loris/releases/tag/v27.0.4","name":"https://github.com/aces/Loris/releases/tag/v27.0.4","tags":["x_refsource_MISC"]},{"url":"https://github.com/aces/Loris/releases/tag/v28.0.2","name":"https://github.com/aces/Loris/releases/tag/v28.0.2","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"LOW","baseScore":6.3,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"LOW","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-862","lang":"en","description":"CWE-862: Missing Authorization","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-10-30T21:29:38.725Z"},"source":{"advisory":"GHSA-m48r-jv24-jjcx","discovery":"UNKNOWN"}}}}}