{"id":"CVE-2026-119300","state":"PUBLISHED","title":"Wekan: ReDoS via Unescaped User Input in RegExp","description":"Wekan is open source kanban built with Meteor. Prior to 11.11, the user-search publication in server/publications/users.js and the searchUsers method in server/models/users.js pass authenticated user-controlled searchTerm and query values to new RegExp() without escaping regular-expression metacharacters. MongoDB-backed deployments evaluate the resulting patterns with PCRE2, allowing a logged-in user to submit catastrophic-backtracking expressions that consume database CPU and degrade or deny service to other users; searchUsers additionally requires board membership or site-admin status. The FerretDB v1 / RE2 unaffected configuration is not practically affected by catastrophic backtracking. This issue is fixed in version 11.11.","publishedAt":"2026-10-30T16:29:16.786Z","updatedAt":"2026-10-30T16:29:16.786Z","severity":{"score":6.5,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","source":"GitHub_M"},"assigner":"GitHub_M","products":["wekan wekan"],"affected":[{"vendor":"wekan","product":"wekan","versions":[{"version":"< 11.11","status":"affected"}]}],"references":["https://github.com/wekan/wekan/security/advisories/GHSA-9846-cj96-6hv5","https://github.com/wekan/wekan/commit/4ce5cf6e102854d326e1dcacde6cd20614525dec","https://github.com/wekan/wekan/releases/tag/v11.11"],"weaknesses":["CWE-1333"],"ingestedAt":"2026-10-30T16:34:06.595Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/119xxx/CVE-2026-119300.json","commit":"9e54b3557627dfb3a1074c39eb8411c2987ff251","baselineCommit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-119300","state":"PUBLISHED","datePublished":"2026-10-30T16:29:16.786Z","dateUpdated":"2026-10-30T16:29:16.786Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-10-29T18:50:28.066Z"},"containers":{"cna":{"title":"Wekan: ReDoS via Unescaped User Input in RegExp","descriptions":[{"lang":"en","value":"Wekan is open source kanban built with Meteor. Prior to 11.11, the user-search publication in server/publications/users.js and the searchUsers method in server/models/users.js pass authenticated user-controlled searchTerm and query values to new RegExp() without escaping regular-expression metacharacters. MongoDB-backed deployments evaluate the resulting patterns with PCRE2, allowing a logged-in user to submit catastrophic-backtracking expressions that consume database CPU and degrade or deny service to other users; searchUsers additionally requires board membership or site-admin status. The FerretDB v1 / RE2 unaffected configuration is not practically affected by catastrophic backtracking. This issue is fixed in version 11.11."}],"affected":[{"vendor":"wekan","product":"wekan","versions":[{"version":"< 11.11","status":"affected"}]}],"references":[{"url":"https://github.com/wekan/wekan/security/advisories/GHSA-9846-cj96-6hv5","name":"https://github.com/wekan/wekan/security/advisories/GHSA-9846-cj96-6hv5","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/wekan/wekan/commit/4ce5cf6e102854d326e1dcacde6cd20614525dec","name":"https://github.com/wekan/wekan/commit/4ce5cf6e102854d326e1dcacde6cd20614525dec","tags":["x_refsource_MISC"]},{"url":"https://github.com/wekan/wekan/releases/tag/v11.11","name":"https://github.com/wekan/wekan/releases/tag/v11.11","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":6.5,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-1333","lang":"en","description":"CWE-1333: Inefficient Regular Expression Complexity","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-10-30T16:29:16.786Z"},"source":{"advisory":"GHSA-9846-cj96-6hv5","discovery":"UNKNOWN"}}}}}