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EUVD-2026-318575

2026-10-03T19:02:26.918316+00:00

EUVD-2026-318575

fkie_cve-2026-44520

2026-10-03T19:02:26.918354+00:00

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.

GHSA-fqph-j6v6-jvgx — docling-graph has SSRF via Missing Internal IP Validation in URLInputHandler

2026-10-03T19:02:26.918389+00:00

Affected: PyPI: docling-graph

### Impact

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) to reach: - Cloud metadata endpoints (e.g. `169.254.169.254`) to steal IAM credentials - Internal services on loopback (`127.0.0.1`) or private network ranges (`10.x`, `172.16.x`, `192.168.x`)

This affects deployments where `docling-graph` processes URLs from untrusted input, such as multi-tenant pipelines or server-side automation.

### Patches

The vulnerability is fixed in **v1.5.1**.

Users should upgrade immediately: ``` pip install --upgrade docling-graph ```

The fix adds IP validation via `ipaddress` and `socket.gethostbyname()` before any request is made, blocks private/loopback/link-local/reserved addresses, and disables redirect following (`allow_redirects=False`) with explicit validation of any `Location` header before following it.

### Workarounds

If upgrading is not immediately possible, ensure that **all URLs passed to `URLInputHandl…

PYSEC-2026-2458 — docling-graph has SSRF via Missing Internal IP Validation in URLInputHandler

2026-10-03T19:02:26.918476+00:00