XML external entity injection in Eclipse Lyo
Priority LOW 26CWE-611Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- Low · None · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub. Impact type from CWE-611 and the CVSS impact.
Summary
In Eclipse Lyo versions 1.0.0 to 4.1.0, a TransformerFactory is initialized with the defaults that do not restrict DTD loading when working with RDF/XML. This allows an attacker to cause an external DTD to be retrieved.
Why it matters now
EPSS 0.01002 63rd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed org.eclipse.lyo:lyo-parent (Maven): 5.0.0.Final
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Eclipse Foundation | Eclipse Lyo | 1.0.0 and later; up to 4.1.0 | — | No fix listed | CNA |
| — | org.eclipse.lyo:lyo-parent (Maven) | 1.0.0 to before 5.0.0.Final | 5.0.0.Final | Patch available | GHSA-6296-mvgp-27hp |
- Eclipse Lyo VendorEclipse Foundation Affected 1.0.0 and later; up to 4.1.0 Fixed in — No fix listed CNA
- org.eclipse.lyo:lyo-parent (Maven) Vendor— Affected 1.0.0 to before 5.0.0.Final Fixed in 5.0.0.Final Patch available GHSA-6296-mvgp-27hp
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:eclipse:lyo:*:*:*:*:*:*:*:* | 1.0.0 – 4.1.0 | Vulnerable | Eclipse Foundation |
- cpe:2.3:a:eclipse:lyo:*:*:*:*:*:*:*:* Versions 1.0.0 – 4.1.0 Vulnerable ·Eclipse Foundation
Remediation
- Fix · GHSA-6296-mvgp-27hp org.eclipse.lyo:lyo-parent (Maven) Fixed in 5.0.0.Final Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2021-41042
- 2026-10-03 Alias added: GHSA-6296-mvgp-27hp
References
Sources
- CVE-2021-41042 · CVE Program
- CVE-2021-41042 · NVD
- FIRST EPSS
- GHSA-6296-mvgp-27hp · GitHub Advisory Database · CC BY 4.0
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