CVE-2026-105742

Summary

Docling simplifies document processing by parsing diverse formats and providing integrations with the generative AI ecosystem. From 2.95.0 until 2.132.0, the HTML image resource loader in docling/backend/utils/image_resource_loader.py forwards headers configured through the HTMLBackendOptions.headers setting to every remote image URL named by an untrusted document when enable_remote_fetch=True and fetch_images=True. The loader does not restrict those credentials to the source document's origin, allowing requests that carry custom headers such as API keys and cookies to follow cross-origin redirects and expose the caller's configured credentials to a document author. The default configuration is not affected because remote fetching and configured headers are required. This issue is fixed in 2.132.0.

Affected Software

VendorProductVersion RangeStatus
docling-projectdocling>= 2.95.0, < 2.132.0affected
docling-projectdocling-slim>= 2.95.0, < 2.132.0affected

Weaknesses

  • CWE-201: CWE-201: Insertion of Sensitive Information Into Sent Data
  • CWE-522: CWE-522: Insufficiently Protected Credentials

References