CVE-2021-41042
XML External Entity Reference in Eclipse Lyo
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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- Low
- Integrity
- None
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
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.
- Record
CVE-2021-41042- CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N - CVSS 2.0
- 5.0 Medium
AV:N/AC:L/Au:N/C:P/I:N/A:N - Weakness
- CWE-611
- Updated
- 2026-11-02
CVE List No score
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.
- Record
CVE-2021-41042- Weakness
- CWE-611
- Updated
- 2026-11-02
EUVDEUVD-2022-6255 No score
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.
- Record
EUVD-2022-6255- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-6296-mvgp-27hp
XML External Entity Reference in Eclipse Lyo
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.
- Record
GHSA-6296-mvgp-27hp- CVSS 3.1
- 4.2 Medium
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:L - Weakness
- CWE-611
- Updated
- 2026-11-02
OSVGHSA-6296-mvgp-27hp
XML External Entity Reference in Eclipse Lyo
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.
- Record
GHSA-6296-mvgp-27hp- CVSS 3.1
- 4.2 Medium
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:L - Weakness
- CWE-611
- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
org.eclipse.lyo:lyo-parentMaven |
1.0.0 to 4.1.0 | 5.0.0.Final |
org.eclipse.lyo:lyo-parentMaven |
1.0.0 up to 5.0.0.Final, plus listed versions 4.0.04.0.0.RC4.1.04.1.0.M14.1.0.RC Show 6 moreShow less4.1.0.alpha15.0.0.CR5.0.0.alpha15.0.0.alpha25.0.0.alpha35.0.0.alpha4 |
5.0.0.Final |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-41042 is a medium vulnerability (CVSS 5.3) in Eclipse Lyo, published July 7, 2022. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.00%, the 63rd percentile. Fixed in org.eclipse.lyo:lyo-parent 5.0.0.Final.