{"schemaVersion":3,"id":"CVE-2021-41042","aliases":["GHSA-6296-mvgp-27hp"],"status":"published","duplicateOf":null,"title":null,"description":"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.","dates":{"published":"2022-07-07T20:55:10.000Z","modified":"2024-08-04T02:59:31.150Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":5.3,"severity":"medium","version":"3.1","versionLabel":"v3.1","source":"NVD","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","computed":false,"selection":"backend-summary"},"metrics":[{"version":"3.1","versionLabel":"v3.1","source":"OSV · Maven","score":4.2,"severity":"medium","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:L","exploitability":4.1,"impact":4.2,"computed":true},{"version":"3.1","versionLabel":"v3.1","source":"NVD","score":5.3,"severity":"medium","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","exploitability":null,"impact":null,"computed":false},{"version":"2.0","versionLabel":"v2.0","source":"NVD","score":5,"severity":"medium","vector":"AV:N/AC:L/Au:N/C:P/I:N/A:N","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.01002,"percentile":0.623,"severity":"low","asOf":"2026-10-19T00:00:00.000Z","change":{"pp":0.02899999999999986,"baselineDate":"2026-09-19T00:00:00.000Z","baselineScore":0.00973},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.00973,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.00973,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.00973,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.00973,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.00973,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.00973,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.00973,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00973,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00973,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.01002,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.01002,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.01002,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.01002,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.01002,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.01002,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.01002,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.01002,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.01002,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.01002,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.01002,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.01002,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.01002,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.01002,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.01002,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.01002,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.01002,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.01002,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.01002,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.01002,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.01002,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.01002,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.01002,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.01002,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.01002,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.01002,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.01002,"percentile":0.623}],"last30":[{"date":"2026-09-19T00:00:00.000Z","score":0.00973,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.00973,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00973,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00973,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.01002,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.01002,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.01002,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.01002,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.01002,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.01002,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.01002,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.01002,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.01002,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.01002,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.01002,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.01002,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.01002,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.01002,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.01002,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.01002,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.01002,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.01002,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.01002,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.01002,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.01002,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.01002,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.01002,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.01002,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.01002,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.01002,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.01002,"percentile":0.623}]},"kev":{"state":"not-listed","entries":[],"listedCount":0,"totalCatalogs":3,"catalogs":[{"source":"cisa","label":"CISA","listed":false,"entry":null},{"source":"enisa","label":"ENISA","listed":false,"entry":null},{"source":"circl","label":"CIRCL","listed":false,"entry":null}]},"ransomware":{"state":"none-recorded","sources":[]},"exploits":[{"id":"REF_72AB61F61D748BF4","name":"Exploit Reference (gitlab.eclipse.org)","source":"reference","url":"https://gitlab.eclipse.org/eclipsefdn/emo-team/emo/-/issues/287","maturity":"unknown","reliabilityScore":0.2,"verified":false,"type":null,"platforms":[],"requiresAuth":null,"exploitdb":null,"metasploit":null}],"exploitCount":1,"weaknesses":[{"id":"CWE-611","name":"Improper Restriction of XML External Entity Reference","description":"The product processes an XML document that can contain XML entities with URIs that resolve to documents outside of the intended sphere of control, causing the product to embed incorrect documents into its output.","type":"weakness","status":"Draft","abstraction":"Base","likelihoodOfExploit":null,"url":"https://cwe.mitre.org/data/definitions/611.html"}],"affected":[{"vendor":"eclipse","product":"lyo","name":"lyo","label":"lyo","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"≥ 1.0.0, ≤ 4.1.0","noFixRecorded":false,"fixedIn":null}],"versionsText":"≥ 1.0.0, ≤ 4.1.0","eol":null,"hubHref":"/vendor/eclipse/lyo"},{"vendor":"org.eclipse.lyo","product":"lyo-parent","name":"org.eclipse.lyo:lyo-parent","label":"lyo-parent","ecosystem":"Maven","cpePart":null,"purl":"pkg:maven/org.eclipse.lyo/lyo-parent","purlType":"maven","versions":[{"text":"≥ 1.0.0, < 5.0.0.Final","noFixRecorded":false,"fixedIn":null}],"versionsText":"≥ 1.0.0, < 5.0.0.Final","eol":null,"hubHref":null},{"vendor":"the eclipse foundation","product":"eclipse lyo","name":"Eclipse Lyo","label":"eclipse lyo","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"≥ 1.0.0, < unspecified","noFixRecorded":false,"fixedIn":null},{"text":"≥ unspecified, ≤ 4.1.0","noFixRecorded":false,"fixedIn":null}],"versionsText":"≥ 1.0.0, < unspecified | ≥ unspecified, ≤ 4.1.0","eol":null,"hubHref":"/vendor/the_eclipse_foundation/eclipse_lyo"}],"affectedCount":3,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://gitlab.eclipse.org/eclipsefdn/emo-team/emo/-/issues/287","label":"gitlab.eclipse.org/eclipsefdn/emo-team/emo/-/issues/287","hostname":"gitlab.eclipse.org","tags":["X Refsource CONFIRM","WEB","Exploit","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-41042","label":"nvd.nist.gov/vuln/detail/CVE-2021-41042","hostname":"nvd.nist.gov","tags":["Advisory"]},{"url":"https://github.com/eclipse/lyo/commit/a8b15b7f49ca15e55f6699749c39705d21367c6e","label":"github.com/eclipse/lyo/commit/a8b15b7f49ca15e55f6699749c39705d21367c6e","hostname":"github.com","tags":["WEB"]},{"url":"https://github.com/eclipse/lyo","label":"github.com/eclipse/lyo","hostname":"github.com","tags":["WEB"]},{"url":"https://github.com/eclipse/lyo/releases/tag/v5.0.0","label":"github.com/eclipse/lyo/releases/tag/v5.0.0","hostname":"github.com","tags":["WEB"]}],"lineage":{"upstream":[],"downstream":[],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2022-07-07T20:55:10.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2024-08-04T02:59:31.150Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":31,"level":"medium","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-19T19:15:05.033Z","stale":false,"partial":false}}