CVE-2026-31247: n/a
Docling's JATS XML backend is vulnerable to XML Entity Expansion (XXE) attacks thru 2.61.0. The backend uses etree.parse() to parse XML files without disabling entity resolution. An attacker can craft a malicious XML file containing a nested entity expansion payload (XML Bomb). When processed by Docling, the exponential expansion of entities leads to excessive resource consumption, resulting in a denial of service (DoS) condition on the system running the Docling parser.
AI Analysis
Technical Summary
The vulnerability in Docling's JATS XML backend arises because it uses etree.parse() without disabling entity resolution, allowing XML Entity Expansion (XXE) attacks. Specifically, an attacker can craft an XML Bomb payload with nested entity expansions that, when parsed, cause excessive resource consumption. This results in a denial of service condition on the system running the vulnerable Docling parser. The issue affects versions up to 2.61.0. No CVSS score or remediation details are provided in the available data.
Potential Impact
Successful exploitation leads to denial of service by exhausting system resources during XML parsing. This can disrupt availability of the Docling service or any system component relying on its JATS XML backend. There is no indication of data disclosure or code execution impacts from the provided information.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, consider disabling or restricting XML entity processing in the Docling XML parser if configurable, or implement input validation to block untrusted XML inputs containing entity expansions.
CVE-2026-31247: n/a
Description
Docling's JATS XML backend is vulnerable to XML Entity Expansion (XXE) attacks thru 2.61.0. The backend uses etree.parse() to parse XML files without disabling entity resolution. An attacker can craft a malicious XML file containing a nested entity expansion payload (XML Bomb). When processed by Docling, the exponential expansion of entities leads to excessive resource consumption, resulting in a denial of service (DoS) condition on the system running the Docling parser.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability in Docling's JATS XML backend arises because it uses etree.parse() without disabling entity resolution, allowing XML Entity Expansion (XXE) attacks. Specifically, an attacker can craft an XML Bomb payload with nested entity expansions that, when parsed, cause excessive resource consumption. This results in a denial of service condition on the system running the vulnerable Docling parser. The issue affects versions up to 2.61.0. No CVSS score or remediation details are provided in the available data.
Potential Impact
Successful exploitation leads to denial of service by exhausting system resources during XML parsing. This can disrupt availability of the Docling service or any system component relying on its JATS XML backend. There is no indication of data disclosure or code execution impacts from the provided information.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, consider disabling or restricting XML entity processing in the Docling XML parser if configurable, or implement input validation to block untrusted XML inputs containing entity expansions.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- mitre
- Date Reserved
- 2026-03-09T00:00:00.000Z
- Cvss Version
- null
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a01f78acbff5d86102f1709
Added to database: 5/11/2026, 3:36:42 PM
Last enriched: 5/11/2026, 4:07:00 PM
Last updated: 5/12/2026, 3:48:41 AM
Views: 6
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