{"cve":"CVE-2018-1000125","nvd":{"published":"2018-03-13T21:29:00.367","modified":"2026-06-17T01:32:28.990","status":"Modified","description":"inversoft prime-jwt version prior to version 1.3.0 or prior to commit 0d94dcef0133d699f21d217e922564adbb83a227 contains an input validation vulnerability in JWTDecoder.decode that can result in a JWT that is decoded and thus implicitly validated even if it lacks a valid signature. This attack appear to be exploitable via an attacker crafting a token with a valid header and body and then requests it to be validated. This vulnerability appears to have been fixed in 1.3.0 and later or after commit 0d94dcef0133d699f21d217e922564adbb83a227.","cvss_v4":null,"cvss_v3":{"version":"3.0","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","score":9.8},"cwes":["CWE-20"],"references":["https://github.com/inversoft/prime-jwt/blob/master/CHANGES","https://github.com/inversoft/prime-jwt/issues/2","https://github.com/inversoft/prime-jwt/blob/master/CHANGES","https://github.com/inversoft/prime-jwt/issues/2"],"products":["inversoft:prime-jwt"],"source":"nvd","synced_at":"2026-10-19T20:48:50.842038930+00:00"},"epss":{"cve":"CVE-2018-1000125","score":0.01366,"percentile":0.71841,"date":"2026-10-31"},"kev":null,"osv":[],"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."]}