Wekan: ReDoS via Unescaped User Input in RegExp

{
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "cveMetadata": {
    "cveId": "CVE-2026-119300",
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "dateUpdated": "2026-10-30T16:29:16.786Z",
    "dateReserved": "2026-10-29T18:50:28.066Z",
    "datePublished": "2026-10-30T16:29:16.786Z",
    "state": "PUBLISHED"
  },
  "containers": {
    "cna": {
      "providerMetadata": {
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M",
        "dateUpdated": "2026-10-30T16:29:16.786Z"
      },
      "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"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "lang": "en",
              "description": "CWE-1333: Inefficient Regular Expression Complexity",
              "cweId": "CWE-1333",
              "type": "CWE"
            }
          ]
        }
      ],
      "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": {
            "version": "3.1",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
            "attackVector": "NETWORK",
            "attackComplexity": "LOW",
            "privilegesRequired": "LOW",
            "userInteraction": "NONE",
            "scope": "UNCHANGED",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "availabilityImpact": "HIGH",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM"
          }
        }
      ]
    }
  }
}