{"cve":"CVE-2021-23900","nvd":{"published":"2021-01-13T16:15:14.490","modified":"2026-06-17T03:39:00.377","status":"Modified","description":"OWASP json-sanitizer before 1.2.2 can output invalid JSON or throw an undeclared exception for crafted input. This may lead to denial of service if the application is not prepared to handle these situations.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5},"cwes":[],"references":["https://github.com/OWASP/json-sanitizer/commit/a37f594f7378a1c76b3283e0dab9e1ab1dc0247e","https://github.com/OWASP/json-sanitizer/compare/v1.2.1...v1.2.2","https://groups.google.com/g/json-sanitizer-support/c/dAW1AeNMoA0","https://github.com/OWASP/json-sanitizer/commit/a37f594f7378a1c76b3283e0dab9e1ab1dc0247e","https://github.com/OWASP/json-sanitizer/compare/v1.2.1...v1.2.2"],"products":["owasp:json-sanitizer"],"source":"nvd","synced_at":"2026-10-19T21:14:10.479542811+00:00"},"epss":{"cve":"CVE-2021-23900","score":0.02125,"percentile":0.81914,"date":"2026-11-01"},"kev":null,"osv":[{"id":"GHSA-8rf5-92jh-3vc9","url":"https://osv.dev/vulnerability/GHSA-8rf5-92jh-3vc9","summary":"Uncaught Exception leading to Denial of Service in json-sanitizer","modified":"2023-11-08T04:05:13.923703Z","packages":[{"ecosystem":"Maven","name":"com.mikesamuel:json-sanitizer","purl":"pkg:maven/com.mikesamuel/json-sanitizer","ranges":["<1.2.2"],"fixed":["1.2.2"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}