{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "2.5"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "DESCRIPTION"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "c1fca6bdf77d8ed80048d1b73a8da80cf36ee751"
            }
          ],
          "repo": "https://github.com/wger-project/wger",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-v25j-wqcw-fvhj"
  ],
  "database_specific": {
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
      "CWE-400"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/86xxx/CVE-2026-86255.json"
  },
  "details": "wger before 2.5 fails to validate the maximum duration of routine date ranges, allowing authenticated users to create routines spanning arbitrarily long periods. Attackers can trigger the date_sequence computation via routine detail endpoints, forcing the server to iterate thousands of times per request and exhaust worker threads, denying service to legitimate users.",
  "id": "CVE-2026-86255",
  "modified": "2026-09-10T03:30:34.102812952Z",
  "published": "2026-09-06T12:00:29.574Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/86xxx/CVE-2026-86255.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/wger-project/wger/security/advisories/GHSA-v25j-wqcw-fvhj"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-86255"
    },
    {
      "type": "ADVISORY",
      "url": "https://www.vulncheck.com/advisories/wger-before-2.5-uncontrolled-resource-consumption-via-date-sequence"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "wger before 2.5 Uncontrolled Resource Consumption via date_sequence"
}