CVE-2026-119300: medium-severity vulnerability in wekan
Wekan: ReDoS via Unescaped User Input in RegExp
Published · Updated
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13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 6.5epss 0.3%
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.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Affected products
wekan · wekanRelated CVEs — wekan
In the same product, most dangerous first.
CVE-2026-52891CRITICALWekan: Shell Injection via Avatar UploadEPSS 0.8%CVE-2026-55652CRITICALWekan: Header-login IP allowlist bypass via X-Forwarded-For spoofing in Wekan allows unauthenticated full account takeover (incl. admin)EPSS 0.6%CVE-2026-68560HIGHWekan:hell Injection in External Antivirus Scanner Path via asyncExecEPSS 0.6%CVE-2026-68901MEDIUMWeKan Board Export REST Endpoints: NULL Pointer Dereference on Invalid authToken Leads to Uncaught Exception / Remote Denial of ServiceEPSS 0.5%CVE-2026-68899HIGHWekan: File Upload MIME Type Validation Bypass — Stored XSS via Missing System Binary FallbackEPSS 0.5%CVE-2026-68561HIGHWekan: a low-privilege board member escalates to board admin and takes over a private board via the `sort` collection-allow ruleEPSS 0.5%