CVE-2026-105742

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

MEDIUM
5.3
CVSS Score
Published: October 5, 2026 at 09:21 PM UTC
Updated: October 7, 2026 at 07:52 PM UTC
1 product affected across 1 vendorDocling

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Severity
MEDIUM5.3
Exploit prediction
EPSS 0.3%
SSVC
PoC

Description

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

2.95.0 ≤ v < 2.132.0

References (4)

x_refsource_CONFIRMExploitPatchVendor Advisory
Source: cverecord
https://github.com/docling-project/docling/security/advisories/GHSA-p3fw-7699-7926
x_refsource_MISCIssue TrackingPatch
Source: cverecord
https://github.com/docling-project/docling/pull/4420
x_refsource_MISCRelease Notes
Source: cverecord
https://github.com/docling-project/docling/releases/tag/v2.132.0

SSVC — Action Prioritization

SSVCPoCNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusANALYZED
CWE
CWE-201CWE-522

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