{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1126e0a503876056a68a434e19f64158a5a4840b"
            }
          ],
          "repo": "https://github.com/opensift/opensift",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "de99b9c"
            }
          ],
          "repo": "https://github.com/opensift/opensift",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "316e4621ab65b52c283d0d6350280df46408a096"
            }
          ],
          "repo": "https://github.com/opensift/opensift",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-5jfc-p787-2mf9"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-918"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/28xxx/CVE-2026-28677.json"
  },
  "details": "OpenSift is an AI study tool that sifts through large datasets using semantic search and generative AI. Prior to version 1.6.3-alpha, the URL ingest pipeline accepted user-controlled remote URLs with incomplete destination restrictions. Although private/local host checks existed, missing restrictions for credentialed URLs, non-standard ports, and cross-host redirects left SSRF-class abuse paths in non-localhost deployments. This issue has been patched in version 1.6.3-alpha.",
  "id": "CVE-2026-28677",
  "modified": "2026-04-01T23:10:35.903526241Z",
  "published": "2026-03-06T04:23:23.695Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/OpenSift/OpenSift/releases/tag/v1.6.3-alpha"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/28xxx/CVE-2026-28677.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/OpenSift/OpenSift/security/advisories/GHSA-5jfc-p787-2mf9"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-28677"
    },
    {
      "type": "FIX",
      "url": "https://github.com/OpenSift/OpenSift/commit/1126e0a503876056a68a434e19f64158a5a4840b"
    },
    {
      "type": "FIX",
      "url": "https://github.com/OpenSift/OpenSift/commit/de99b9c"
    },
    {
      "type": "FIX",
      "url": "https://github.com/OpenSift/OpenSift/pull/67"
    }
  ],
  "schema_version": "1.7.3",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:L",
      "type": "CVSS_V3"
    }
  ],
  "summary": "OpenSift: Insufficient URL destination restrictions in ingest flow could enable SSRF-style internal access"
}