{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0.5.2"
              },
              {
                "fixed": "0.7.0"
              }
            ],
            "source": "AFFECTED_FIELD"
          },
          "events": [
            {
              "introduced": "80bd2688623dda4b0e8df90ec911b97a8cee0a3a"
            },
            {
              "fixed": "e8dcbb07d09db88894601b564ebabe21dda6830d"
            }
          ],
          "repo": "https://github.com/tencent/weknora",
          "type": "GIT"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
      "CWE-918"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/91xxx/CVE-2026-91750.json"
  },
  "details": "WeKnora before 0.7.0 fails to re-validate HTTP redirect targets in the POST /api/v1/knowledge-bases/:id/knowledge/url endpoint when downloading documents from user-supplied URLs. Authenticated attackers can bypass initial SSRF validation by supplying a public URL that redirects to internal network addresses, allowing access to internal services and cloud metadata.",
  "id": "CVE-2026-91750",
  "modified": "2026-09-18T03:30:51.460254940Z",
  "published": "2026-09-15T00:35:42.122Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/91xxx/CVE-2026-91750.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-91750"
    },
    {
      "type": "ADVISORY",
      "url": "https://www.vulncheck.com/advisories/weknora-before-0.7.0-ssrf-via-unvalidated-http-redirects"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/Tencent/WeKnora/issues/2511"
    },
    {
      "type": "FIX",
      "url": "https://github.com/Tencent/WeKnora/commit/1d322c525a6197d24f07555b4b18ad33313b4328"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/Tencent/WeKnora"
    },
    {
      "type": "ARTICLE",
      "url": "https://github.com/Tencent/WeKnora/blob/v0.6.2/internal/application/service/knowledge_util.go#L339-L348"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "WeKnora before 0.7.0 SSRF via Unvalidated HTTP Redirects"
}