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.
CVE-2026-31247
Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-05-11. NVD baseline CVSS 7.5; sources differ by 0.0.
- High severity, but no confirmed exploitation yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 7.5
- EG Score
- 7.5(medium)
- EPSS
- 27.1%
- KEV
- Not listed
Published
May 11, 2026
Last Modified
May 13, 2026
Advisory Details (2)
Auto-updated Jun 6, 2026GitHub - docling-project/docling: Get your documents ready for gen AI · GitHub
https://github.com/docling-project/doclingVendor Advisories for CVE-2026-31247(1)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Patch Availability(1)
| Vendor / Ecosystem | Fixed in / Patch | Released | Source |
|---|---|---|---|
| pip | docling | — | ghsa |
Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.
Affected Packages
(1 across 1 ecosystem)
PyPI(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| docling | 0.1.0 ... 2.9.0 (137 versions) | — | — |
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 9× in last 7d / 64× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
Showing the most recent 100 of 163 total refreshes for this CVE.
- 2026-07-11 08:27 UTCEPSS rescore
- 2026-07-09 19:10 UTCEPSS rescore
- 2026-07-08 15:15 UTCEPSS rescore
- 2026-07-07 13:46 UTCEPSS rescore
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- 2026-06-30 23:22 UTCEPSS rescore
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- 2026-06-28 14:07 UTCEPSS rescore
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- 2026-06-28 04:56 UTCEPSS rescore
- 2026-06-28 04:56 UTCEPSS rescore
- 2026-06-28 03:25 UTCEG score recompute
- 2026-06-28 03:25 UTCGHSA enrichment
- 2026-06-27 09:57 UTCEG score recompute
- 2026-06-27 09:57 UTCGHSA enrichment
- 2026-06-27 03:08 UTCEPSS rescore
- 2026-06-26 21:07 UTCEG score recompute
- 2026-06-26 21:07 UTCGHSA enrichment
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- 2026-06-26 05:13 UTCEG score recompute
- 2026-06-26 05:13 UTCGHSA enrichment
- 2026-06-25 13:49 UTCEPSS rescore
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- 2026-06-24 14:05 UTCEPSS rescore
- 2026-06-23 21:33 UTCEPSS rescore
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- 2026-06-21 14:56 UTCEPSS rescore
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- 2026-06-21 01:59 UTCEPSS rescore
- 2026-06-19 19:25 UTCEPSS rescore
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- 2026-06-18 17:52 UTCEPSS rescore
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- 2026-06-17 17:53 UTCEPSS rescore
- 2026-06-17 01:05 UTCEG score recompute
- 2026-06-17 01:05 UTCGHSA enrichment
- 2026-06-16 17:52 UTCEPSS rescore
- 2026-06-16 07:30 UTCEG score recompute
- 2026-06-16 07:30 UTCGHSA enrichment
- 2026-06-15 17:49 UTCEPSS rescore
- 2026-06-15 01:28 UTCEG score recompute
- 2026-06-15 01:28 UTCGHSA enrichment
- 2026-06-14 23:18 UTCEPSS rescore
- 2026-06-14 14:36 UTCEG score recompute
- 2026-06-14 14:35 UTCGHSA enrichment
- 2026-06-14 02:00 UTCEG score recompute
- 2026-06-14 02:00 UTCGHSA enrichment
- 2026-06-13 23:00 UTCEPSS rescore
- 2026-06-13 08:27 UTCEG score recompute
- 2026-06-13 08:27 UTCGHSA enrichment
- 2026-06-12 23:12 UTCEPSS rescore
- 2026-06-12 23:12 UTCEPSS rescore
- 2026-06-12 18:01 UTCEG score recompute
- 2026-06-12 18:01 UTCGHSA enrichment
- 2026-06-12 05:16 UTCEG score recompute
- 2026-06-12 05:16 UTCGHSA enrichment
- 2026-06-11 18:23 UTCEG score recompute
- 2026-06-11 18:23 UTCGHSA enrichment
- 2026-06-11 14:00 UTCEPSS rescore
- 2026-06-11 07:14 UTCEG score recompute
- 2026-06-11 07:14 UTCGHSA enrichment
- 2026-06-10 22:18 UTCEPSS rescore
- 2026-06-10 20:22 UTCEG score recompute
- 2026-06-10 20:22 UTCGHSA enrichment
- 2026-06-10 13:22 UTCEPSS rescore
- 2026-06-10 09:29 UTCEG score recompute
- 2026-06-10 09:29 UTCGHSA enrichment
- 2026-06-09 22:36 UTCEG score recompute
- 2026-06-09 22:36 UTCGHSA enrichment
- 2026-06-09 10:59 UTCEG score recompute
- 2026-06-09 10:59 UTCGHSA enrichment
- 2026-06-09 00:07 UTCEG score recompute
- 2026-06-09 00:07 UTCGHSA enrichment
- 2026-06-08 14:17 UTCEPSS rescore
- 2026-06-08 14:17 UTCEPSS rescore
- 2026-06-08 13:14 UTCEG score recompute
- 2026-06-08 13:14 UTCGHSA enrichment
- 2026-06-08 02:21 UTCEG score recompute
- 2026-06-08 02:21 UTCGHSA enrichment
- 2026-06-07 15:29 UTCEG score recompute
- 2026-06-07 15:29 UTCGHSA enrichment
- 2026-06-07 15:25 UTCEPSS rescore
- 2026-06-07 15:25 UTCEPSS rescore
- 2026-06-07 15:25 UTCEPSS rescore
- 2026-06-07 04:36 UTCEG score recompute
- 2026-06-07 04:36 UTCGHSA enrichment
- 2026-06-07 04:36 UTCEG score recompute
- 2026-06-07 04:36 UTCGHSA enrichment
- 2026-06-06 17:43 UTCEG score recompute
- 2026-06-06 17:43 UTCGHSA enrichment
- 2026-06-06 13:47 UTCEPSS rescore
- 2026-06-06 13:47 UTCEPSS rescore
Related CVEs(same product + same CWE)
Same CWE
10 shownCWE-400
Frequently asked(5)
What is CVE-2026-31247?
When was CVE-2026-31247 disclosed?
Is CVE-2026-31247 actively exploited?
What is the CVSS score of CVE-2026-31247?
How do I remediate CVE-2026-31247?
Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-31247
Is Your Infrastructure Affected by CVE-2026-31247?
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