{"id":"CVE-2026-119300","title":"Wekan: ReDoS via Unescaped User Input in RegExp","summary":"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 value…","severity":"medium","cvss":6.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","cvssSource":"cna","cwe":["CWE-1333"],"vendor":"wekan","product":"wekan","affected":["wekan < 11.11"],"ssvc":{"exploitation":"poc","automatable":"no","technicalImpact":"partial","timestamp":"2026-11-04T23:00:38.538587Z"},"exploitAvailable":true,"published":"2026-10-30","updated":"2026-11-04","sourceUpdated":"2026-11-04T23:01:02.327Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-119300","references":[{"url":"https://github.com/wekan/wekan/security/advisories/GHSA-9846-cj96-6hv5","label":"https://github.com/wekan/wekan/security/advisories/GHSA-9846-cj96-6hv5"},{"url":"https://github.com/wekan/wekan/commit/4ce5cf6e102854d326e1dcacde6cd20614525dec","label":"https://github.com/wekan/wekan/commit/4ce5cf6e102854d326e1dcacde6cd20614525dec"},{"url":"https://github.com/wekan/wekan/releases/tag/v11.11","label":"https://github.com/wekan/wekan/releases/tag/v11.11"}],"tags":["cve.org","exploit-available"],"epss":0.00295,"epssPercentile":0.22282,"ingestedAt":"2026-11-05T21:36:00.668Z","slug":"CVE-2026-119300","body":"## Overview\n\nWekan 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.\n\n## Affected\n\n- `wekan < 11.11`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":48,"depthScoreParts":{"impact":35.8,"likelihood":0.1,"exploitation":12,"ransomware":0},"changes":[]}