What’s Vulnerable › Vulnerabilities

CVE-2026-44018: Docling: Unsafe Archive Extraction and XML Parsing in METS-GBS Backend

• Severity: high (CVSS 7.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-06-26 · updated 2026-10-25
• Weakness: CWE-409

Description

Docling simplifies document processing by parsing diverse formats and providing integrations with the generative AI ecosystem. From 2.45.0 until 2.91.0, the METS-GBS backend's XML parsing and the input document format detection lacked security controls. An attacker could craft malicious METS-GBS archives that, when processed, could read sensitive files, exhaust system resources, or cause application crashes. This vulnerability is fixed in 2.91.0.

Affected products

• docling-project docling: from 2.45.0 before 2.91.0 — fixed in 2.91.0

How to fix

Upgrade to a fixed version: docling-project docling 2.91.0. Check the vendor advisory for mitigations.

References

• https://github.com/docling-project/docling/releases/tag/v2.91.0
• https://github.com/docling-project/docling/security/advisories/GHSA-r3xg-rg9j-67fv

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