CVE-2026-44020
Docling Docling
Docling simplifies document processing by parsing diverse formats and providing integrations with the generative AI ecosystem. From 2.13.0 until 2.74.0, the USPTO patent XML parser used the standard xml.sax.parseString() without protection against XML External Entity (XXE) attacks. An attacker could craft malicious USPTO patent XML files with external entity references that could read arbitrary files from the server filesystem, perform Server-Side Request Forgery (SSRF) attacks, or cause denial of service through entity expansion (Billion Laughs attack). The vulnerability affects three USPTO patent format parsers: ICE (v4.x), Grant v2.5, and Application v1.x. This vulnerability is fixed in 2.74.0.
Exploitation status
- A vendor advisory or patch reference has been published.
What the metrics mean
- It is reachable over a network, without needing local access.
- For an attacker who can reach it, no special conditions are needed to exploit it.
- To exploit it, no account is needed.
- Beyond that, no action by a user is required.
Scoring
- CVSS
- 7.5 (v3.1)
- Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H- Weakness
- CWE-776
- Assigned by
- security-advisories@github.com
Dates
- Published
- 2026-06-24
- Last modified
- 2026-08-28
- Sources
- NVD
Affected products
- Docling Docling2.13.0 - 2.74.0
As listed in the NVD configuration data. Not a statement about your estate.
References
- https://github.com/docling-project/docling/security/advisories/GHSA-m88r-rg27-5xfg
- https://access.redhat.com/errata/RHSA-2026:60520
- https://access.redhat.com/security/cve/CVE-2026-44020
- https://bugzilla.redhat.com/show_bug.cgi?id=2492456
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-44020.json