CVE-2026-44020: docling · XML Entity Expansion
Affects doclingSource CVE Database V5
Not known to be exploited · CVSS 7.5 High : upgrade to 2.74.0 soon.
Data as of 5 Nov 2026, 23:24 UTC
- EPSS
- 0.6% chance of exploitation in 30 days – higher than 48% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 2.74.0
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HExploitation evidence
Disclosed: evidence found.
CVE published 24 Jun 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 6 Nov 2026.
What to do
Upgrade docling and docling-project/docling to 2.74.0.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| docling-projectdocling | Affected
| Fixed in
|
GitHubdocling-project/doclingpkg:github/docling-project/doclingOther threats | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
A fix is available in docling version 2.74.0. Users should upgrade to version 2.74.0 or later to remediate this vulnerability. There is no indication from the vendor advisory that any other mitigation or temporary workaround is provided or required.
Description
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.
References
- github.com/docling-project/docling/security/advisories/GHSA-m88r-rg27-5xfg (opens in a new tab)
- access.redhat.com/security/cve/CVE-2026-44020 (opens in a new tab)
- bugzilla.redhat.com/show_bug.cgi?id=2492456 (opens in a new tab)
- security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-44020.json (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:60520 (opens in a new tab)