Docling: Configured HTTP headers sent to every remote image host named by a document

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-105742
StatePUBLISHED
AssignerGitHub_M
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-10-05 22:16:56 UTC
Updated2026-10-05 22:16:56 UTC
DescriptionDocling 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.

Risk And Classification

Primary CVSS: v3.1 3.7 LOW from [email protected]

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N

Problem Types: CWE-201 | CWE-522 | CWE-201 CWE-201: Insertion of Sensitive Information Into Sent Data | CWE-522 CWE-522: Insufficiently Protected Credentials

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary3.7LOWCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
3.1CNADECLARED3.7LOWCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Docling-project Docling affected >= 2.95.0, < 2.132.0 Not specified
CNA Docling-project Docling-slim affected >= 2.95.0, < 2.132.0 Not specified

References

ReferenceSourceLinkTags
github.com/docling-project/docling/releases/tag/v2.132.0 [email protected] github.com
github.com/docling-project/docling/pull/4420 [email protected] github.com
github.com/docling-project/docling/security/advisories/GHSA-p3fw-7699-7926 [email protected] github.com
github.com/docling-project/docling/commit/5e469137f275ffc443306a30d12a3a... [email protected] github.com
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