CVE-2026-119300 (GCVE-0-2026-119300)

Vulnerability from cvelistv5 – Published: 2026-10-30 16:29 – Updated: 2026-10-30 16:29
VLAI
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 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.
Severity
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE
  • CWE-1333 - Inefficient Regular Expression Complexity
Assigner
GitHub_M CNA under the mitre root
CNA scorecard C 72/100 over 7913 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
wekan wekan Affected: < 11.11
guessed Create a notification for this product.
Show details on NVD website
To clipboard 

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            "userInteraction": "NONE",
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            "version": "3.1"
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      ],
      "problemTypes": [
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          "descriptions": [
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              "description": "CWE-1333: Inefficient Regular Expression Complexity",
              "lang": "en",
              "type": "CWE"
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      "providerMetadata": {
        "dateUpdated": "2026-10-30T16:29:16.786Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
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          "name": "https://github.com/wekan/wekan/security/advisories/GHSA-9846-cj96-6hv5",
          "tags": [
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          ],
          "url": "https://github.com/wekan/wekan/security/advisories/GHSA-9846-cj96-6hv5"
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          "url": "https://github.com/wekan/wekan/commit/4ce5cf6e102854d326e1dcacde6cd20614525dec"
        },
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        }
      ],
      "source": {
        "advisory": "GHSA-9846-cj96-6hv5",
        "discovery": "UNKNOWN"
      },
      "title": "Wekan: ReDoS via Unescaped User Input in RegExp"
    }
  },
  "cveMetadata": {
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    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-119300",
    "datePublished": "2026-10-30T16:29:16.786Z",
    "dateReserved": "2026-10-29T18:50:28.066Z",
    "dateUpdated": "2026-10-30T16:29:16.786Z",
    "state": "PUBLISHED"
  },
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  "vulnerability-lookup:meta": {
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                "versions": [
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                    "version": "\u003c 11.11"
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        "cveTags": [],
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            "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."
          }
        ],
        "id": "CVE-2026-119300",
        "lastModified": "2026-10-30T17:17:18.563",
        "metrics": {
          "cvssMetricV31": [
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                "attackComplexity": "LOW",
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            "url": "https://github.com/wekan/wekan/commit/4ce5cf6e102854d326e1dcacde6cd20614525dec"
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            "url": "https://github.com/wekan/wekan/releases/tag/v11.11"
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            "url": "https://github.com/wekan/wekan/security/advisories/GHSA-9846-cj96-6hv5"
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        "vulnStatus": "Deferred",
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                "value": "CWE-1333"
              }
            ],
            "source": "security-advisories@github.com",
            "type": "Primary"
          }
        ]
      }
    }
  }
}



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