{"id":"CVE-2026-44520","summary":"Docling-Graph: SSRF via Missing Internal IP Validation in URLInputHandler","details":"Docling-Graph turns documents into validated Pydantic objects, then builds a directed knowledge graph with explicit semantic relationships. Prior to 1.5.1, the URLInputHandler class in docling_graph/core/input/handlers.py makes HTTP requests to user-supplied URLs without validating whether the target resolves to a private, loopback, or link-local IP address. The URLValidator only checks for a valid scheme and non-empty netloc, performing no IP-level validation. Additionally, requests.head() was called with allow_redirects=True, allowing an attacker to redirect requests to internal endpoints via an intermediary URL. An attacker who can control the --source CLI argument or PipelineConfig.source API parameter can trigger Server-Side Request Forgery (SSRF). This vulnerability is fixed in 1.5.1.","aliases":["GHSA-fqph-j6v6-jvgx"],"modified":"2026-07-08T08:05:14.783824267Z","published":"2026-05-14T16:56:58.110Z","database_specific":{"cwe_ids":["CWE-601","CWE-918"],"cna_assigner":"GitHub_M","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/44xxx/CVE-2026-44520.json"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/44xxx/CVE-2026-44520.json"},{"type":"ADVISORY","url":"https://github.com/docling-project/docling-graph/security/advisories/GHSA-fqph-j6v6-jvgx"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-44520"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/docling-project/docling-graph","events":[{"introduced":"0"},{"fixed":"4d3506f97b3bffe129e43a4319a5c2c09c85d6b7"}],"database_specific":{"source":"AFFECTED_FIELD","extracted_events":[{"introduced":"0"},{"fixed":"1.5.1"}]}}],"versions":["v1.5.0","v1.4.4","v1.4.3","v1.4.0","v1.3.1","v1.3.0","v1.2.4","v1.2.3","v1.2.2","v1.2.1","v1.2.0","v1.1.0","v1.0.0","v0.4.1","v0.4.0","v0.3.0","v0.2.5","v0.2.4","v0.2.3","v0.2.2","v0.2.1","v0.2.0","v0.1.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-44520.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N"}]}