What is CVE-2026-105742?

CVE-2026-105742 is a low-severity vulnerability in Docling-Project Docling, classified under Insertion of Sensitive Information into Sent Data. CVSS score: 3.7/10. Published 2026-10-05.

How severe is CVE-2026-105742?

Low severity. CVSS v3 base score is 3.7 out of 10.

Vulnerability in Docling-Project Docling

CVE-2026-105742

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.

Published 2026-10-05 · last modified 2026-10-06.

CVSS v3 metric

CVSS v3 base score 3.7 (Low). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Docling-Project Docling — versions >= 2.95.0, < 2.132.0
Docling-Project Docling-Slim — versions >= 2.95.0, < 2.132.0

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-105742?: CVE-2026-105742 is a low-severity vulnerability in Docling-Project Docling, classified under Insertion of Sensitive Information into Sent Data. CVSS score: 3.7/10. Published 2026-10-05.
How severe is CVE-2026-105742?: Low severity. CVSS v3 base score is 3.7 out of 10.