Security advisory

{
  "id": "dc2571faa92d9767fac72c3b305e011097a019be387c4298d28ba3a6b92a98bd",
  "url": "https://osv.dev/vulnerability/CVE-2025-56526",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2025-56526",
    "summary": "Cross site scripting (XSS) vulnerability in Kotaemon 0.11.0 allowing attackers to execute arbitrary code via a crafted PDF.",
    "evidence": "osv:CVE-2025-56526",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2025-56526",
      "aliases": [
        "CVE-2025-56526"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/cinnamon/kotaemon",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "37cdc28"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:cinnamon:kotaemon:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "0.11.0"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "range": [
                      {
                        "fixed": "37cdc28"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-56526.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:23.357317646Z",
      "provider": "osv",
      "references": [
        "https://harvest-sink-590.notion.site/Stored-XSS-via-Unsanitized-PDF-Content-Rendering-and-Plaintext-Credential-Exposure-in-LocalStorage-236770c3fe1e80f6a1aef381fb1c8f73",
        "https://skinny-exoplanet-584.notion.site/Stored-XSS-via-Unsanitized-PDF-Content-Rendering-and-Plaintext-Credential-Exposure-in-LocalStorage-22cd1563bd3380458588eb49f361a363",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/56xxx/CVE-2025-56526.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2025-56526",
        "https://github.com/Cinnamon/kotaemon/commit/37cdc28",
        "https://github.com/Cinnamon/kotaemon",
        "https://github.com/HanTul/Kotaemon-CVE-2025-56526-56527-disclosure"
      ],
      "provider_metadata": {
        "cna_assigner": "mitre",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/56xxx/CVE-2025-56526.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2025-56526",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 489454,
  "published_at": "2025-11-18T00:00:00+00:00"
}