{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-52890","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","state":"PUBLISHED","assignerShortName":"GitHub_M","dateReserved":"2026-06-08T21:44:27.365Z","datePublished":"2026-07-15T21:07:16.921Z","dateUpdated":"2026-07-16T12:59:24.289Z"},"containers":{"cna":{"title":"Wekan: Arbitrary file read and server DoS via attachment versions.original.path","problemTypes":[{"descriptions":[{"cweId":"CWE-22","lang":"en","description":"CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-400","lang":"en","description":"CWE-400: Uncontrolled Resource Consumption","type":"CWE"}]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"LOW","baseScore":7.1,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"NONE","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:L","version":"3.1"}}],"references":[{"name":"https://github.com/wekan/wekan/security/advisories/GHSA-g6vm-7757-pr88","tags":["x_refsource_CONFIRM"],"url":"https://github.com/wekan/wekan/security/advisories/GHSA-g6vm-7757-pr88"},{"name":"https://github.com/wekan/wekan/commit/fc92b342ceedcf38dbd614a0f7b50d6dc2b22eb8","tags":["x_refsource_MISC"],"url":"https://github.com/wekan/wekan/commit/fc92b342ceedcf38dbd614a0f7b50d6dc2b22eb8"},{"name":"https://github.com/wekan/wekan/releases/tag/v9.31","tags":["x_refsource_MISC"],"url":"https://github.com/wekan/wekan/releases/tag/v9.31"}],"affected":[{"vendor":"wekan","product":"wekan","versions":[{"version":"< 9.31","status":"affected"}]}],"providerMetadata":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2026-07-15T21:07:16.921Z"},"descriptions":[{"lang":"en","value":"Wekan is open source kanban built with Meteor. Prior to 9.31, Wekan allows a logged-in board member to insert an attachment document through the /attachments/insert DDP method with attacker-controlled versions.original.path and versions.original.storage fields. The server/permissions/attachments.js insert rule checks only board write access, and FileStoreStrategyFilesystem.getReadStream() in models/lib/fileStoreStrategy.js streams the stored path without a storage-root containment check, allowing arbitrary file reads and denial of service through special files such as /dev/zero. This issue is fixed in version 9.31."}],"source":{"advisory":"GHSA-g6vm-7757-pr88","discovery":"UNKNOWN"}},"adp":[{"references":[{"url":"https://github.com/wekan/wekan/security/advisories/GHSA-g6vm-7757-pr88","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-07-16T12:59:05.040500Z","id":"CVE-2026-52890","options":[{"Exploitation":"poc"},{"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":"2026-07-16T12:59:24.289Z"}}]}}