{"id":"CVE-2023-26920","details":"fast-xml-parser before 4.1.2 allows __proto__ for Prototype Pollution.","aliases":["CVE-2021-26920","GHSA-793h-6f7r-6qvm","GHSA-x3cc-x39p-42qx"],"modified":"2026-08-12T03:51:15.540262778Z","published":"2023-12-12T00:00:00Z","database_specific":{"cna_assigner":"mitre","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/26xxx/CVE-2023-26920.json"},"references":[{"type":"WEB","url":"https://gist.github.com/Sudistark/a5a45bd0804d522a1392cb5023aa7ef7"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/26xxx/CVE-2023-26920.json"},{"type":"ADVISORY","url":"https://github.com/advisories/GHSA-793h-6f7r-6qvm"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-26920"},{"type":"FIX","url":"https://github.com/NaturalIntelligence/fast-xml-parser/commit/2b032a4f799c63d83991e4f992f1c68e4dd05804"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/naturalintelligence/fast-xml-parser","events":[{"introduced":"0"},{"fixed":"2b032a4f799c63d83991e4f992f1c68e4dd05804"}],"database_specific":{"source":["DESCRIPTION","CPE_RANGE","REFERENCES"],"cpe":"cpe:2.3:a:naturalintelligence:fast_xml_parser:*:*:*:*:*:*:*:*","extracted_events":[{"introduced":"0"},{"fixed":"4.1.2"}]}}],"versions":["v4.1.1","v4.1.0","v4.0.15","v4.0.14","v4.0.13","v4.0.12","v4.0.11","v4.0.10","v4.0.9","v4.0.8","v4.0.7","v4.0.6","v4.0.5","v4.0.4","v4.0.2","v4.0.1","v4.0.0","v4.0.0-beta.6","v4.0.0-beta.5","v4.0.0-beta.4","v4.0.0-beta.3","v4.0.0-beta.2","v4.0.0-beta.0","v3.21.1","v3.21.0","v3.20.3","v3.20.2","v3.20.1","v3.20.0","3.19.0","3.18.0","3.17.5","3.17.1","3.16.0","v3.15.0","3.14.0","3.13.0","3.12.16","3.12.5","3.10.0","3.4.0","3.2.0","3.0.0","2.9.4","2.9.3"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-26920.json"}}],"schema_version":"1.9.0"}