CVE-2021-41042

MEDIUMCVSS 5.3

5.3

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.

CVSS v3: 5.3
EG Score: —
EPSS: —
KEV: Not listed

Published

July 7, 2022

Last Modified

November 21, 2024

References (2)

emo@eclipsehttps://gitlab.eclipse.org/eclipsefdn/emo-team/emo/-/issues/287
af854a3a-2127-422b-91ae-364da2661108https://gitlab.eclipse.org/eclipsefdn/emo-team/emo/-/issues/287

Affected Packages

(1 across 1 ecosystem)

Maven(1)

Package	Vulnerable range	Fixed in	Dependents
org.eclipse.lyo:lyo-parent	4.0.0 ... 5.0.0.alpha4 (11 versions)	5.0.0.Final	—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-611Improper Restriction of XML External Entity Reference (XXE)

Data Freshness Timeline

(refreshed 8× in last 7d / 8× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-05-27 13:39 UTCepss_batch
2026-05-27 13:39 UTCepss_batch
2026-05-26 13:42 UTCepss_batch
2026-05-26 13:42 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-25 19:20 UTCEG score recompute

Frequently asked(4)

What is CVE-2021-41042?

CVE-2021-41042 is a medium vulnerability published on July 7, 2022. 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.

When was CVE-2021-41042 disclosed?

CVE-2021-41042 was first published in the National Vulnerability Database on July 7, 2022, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

What is the CVSS score of CVE-2021-41042?

CVE-2021-41042 has a CVSS v3 base score of 5.3 (NVD).

How do I remediate CVE-2021-41042?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-41042, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2021-41042

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