CVE-2026-44020
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.
- CVSS 3.1
- 7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - EPSS
- 0.6% chance of exploitation in the next 30 days; higher than 48% of CVEs (scores of 2026-10-25)
- CWEs
- CWE-776, CWE-611
- Published
- Modified
- Record from
- the NVD, synced
Affected
- docling:docling
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-m88r-rg27-5xfg | PyPI | docling | >=2.13.0 <2.74.0 | 2.74.0 |
| PYSEC-2026-240 | PyPI | docling | >=2.13.0 <2.74.0 | 2.74.0 |
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