CVE-2026-105748: docling Information Disclosure

Description

Docling simplifies document processing by parsing diverse formats and providing integrations with the generative AI ecosystem. From 2.16.0 until 2.131.0, the InputFormat.JSON_DOCLING backend in docling/backend/json/docling_json_backend.py validates serialized DoclingDocument input without rejecting picture image references that contain local paths or file URIs. When the document is enriched or exported with ImageRefMode.EMBEDDED, the DoclingDocument._with_embedded_pictures and ImageRef.pil_image methods can open those references and place readable image bytes in Markdown or HTML output. Disclosure is limited to files Pillow can decode as images, while differing decode behavior can also reveal whether a path exists. Direct untrusted loading through docling-core is outside this Docling fix. This issue is fixed in 2.131.0.

Is your site exposed to CVE-2026-105748?

Run a free security scan — no signup, results in seconds.

CVSS v3.1 Score

4.3

MEDIUM

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

EPSS — Exploit Prediction

0.0022

Probability of exploitation

0.11%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-73 CWE-73

CWE-200 CWE-200

Affected Products

Vendor	Product	Versions
docling	docling	2.16.0 — 2.131.0

References

Advisories & Patches

https://github.com/docling-project/docling/commit/d4bb776884aba9aa3132f54773f420853cf7afe4 https://github.com/docling-project/docling/pull/4417 https://github.com/docling-project/docling/security/advisories/GHSA-p944-4xh2-x776 https://github.com/docling-project/docling/security/advisories/GHSA-p944-4xh2-x776

Exploits

https://github.com/docling-project/docling/security/advisories/GHSA-p944-4xh2-x776 https://github.com/docling-project/docling/security/advisories/GHSA-p944-4xh2-x776

Other References

https://github.com/docling-project/docling/releases/tag/v2.131.0

Frequently Asked Questions

What is CVE-2026-105748? +

Docling simplifies document processing by parsing diverse formats and providing integrations with the generative AI ecosystem. From 2.16.0 until 2.131.0, the InputFormat.JSON_DOCLING backend in docling/backend/json/docling_json_backend.py validates serialized DoclingDocument input without rejecting picture image references that contain local paths or file URIs. When the document is enriched or exported with ImageRefMode.EMBEDDED, the DoclingDocument._with_embedded_pictures and ImageRef.pil_image methods can open those references and place readable image bytes in Markdown or HTML output. Disclosure is limited to files Pillow can decode as images, while differing decode behavior can also reveal whether a path exists. Direct untrusted loading through docling-core is outside this Docling fix. This issue is fixed in 2.131.0. It has a CVSS v3.1 base score of 4.3 (MEDIUM).

How severe is CVE-2026-105748? +

CVE-2026-105748 has a CVSS v3.1 score of 4.3 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance. The EPSS score is 0.0022, placing it in the 0th percentile for exploitation probability.

What products are affected by CVE-2026-105748? +

CVE-2026-105748 affects products from docling, specifically: docling. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2026-105748? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

Related Vulnerabilities

CVE-2026-44127

SEPPmail Secure Email Gateway before version 15.0.4 contains an unauthenticated path traversal vulnerability in the identifier parameter of /api.app/attachment/preview that …

CVE-2026-40605

Tautulli is a Python based monitoring and tracking tool for Plex Media Server. Prior to version 2.17.1, a path traversal …

CVE-2026-76158

External Control of File Name or Path in the upload API endpoint of Datiphy Data Management Center from v8.3.0 through …

CVE-2024-43658

Patch traversal, External Control of File Name or Path vulnerability in Iocharger Home allows deletion of arbitrary files This issue …

CVE-2026-34030

The Wertheim SafeController Software, AssemblyVersion 6.15.8328.28014, does not sufficiently validate the branch code when a new branch is created. The …

CVE-2026-8920

Improper Restriction of Communication Channel to Intended Endpoints and External Control of File Name or Path in Aura Wallpaper Service …

CVE-2026-105748