{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "2026.7"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "8fd8431414bec5c86dbc94815319fc474518286a"
            }
          ],
          "repo": "https://github.com/weblateorg/weblate",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-r52j-4vjp-q949"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-400"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/62xxx/CVE-2026-62326.json"
  },
  "details": "Weblate is a web-based continuous localization platform used to manage software translations. In versions prior to 2026.7, a user with the built-in \"Edit source\" role can store a malicious regular expression in a source string's flags that is executed without any timeout, allowing them to stall requests and deny service. Regular expressions supplied through the regex: quality check and regex placeholders are compiled during validation but later run against translation content in RegexCheck and PlaceholderCheck with no time limit, so a catastrophic-backtracking pattern like ^(a|aa)+$ can consume CPU indefinitely. Because Weblate re-runs these checks for every linked target unit in the same request when a source unit's flags change, a single edit can trigger sustained CPU-bound denial of service. This issue is fixed in version 2026.7.",
  "id": "CVE-2026-62326",
  "modified": "2026-08-28T03:30:57.162553719Z",
  "published": "2026-08-26T20:36:25.043Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/62xxx/CVE-2026-62326.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/WeblateOrg/weblate/security/advisories/GHSA-r52j-4vjp-q949"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-62326"
    },
    {
      "type": "FIX",
      "url": "https://github.com/WeblateOrg/weblate/commit/8fd8431414bec5c86dbc94815319fc474518286a"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Weblate Has Uncontrolled Resource Consumption via"
}