CVE-2026-44520
Docling-Graph: SSRF via Missing Internal IP Validation in URLInputHandler
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.
| CWE | CWE-601 CWE-918 |
| Vendor | docling-project |
| Product | docling-graph |
| Published | May 14, 2026 |
| Last Updated | May 14, 2026 |
Get instant alerts for docling-project docling-graph
Be the first to know when new medium vulnerabilities affecting docling-project docling-graph are published — delivered to Slack, Telegram or Discord.
CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N