{"cve":"CVE-2026-102275","nvd":{"published":"2026-09-28T21:17:15.857","modified":"2026-10-06T18:17:51.113","status":"Analyzed","description":"PyJWT is a Python implementation of JSON Web Token standards. From 2.1.0 until 2.15.0, PyJWT OKPAlgorithm.from_jwk in  jwt/algorithms.py is affected because private-JWK import path does not compare the public key derived from d with x. This occurs when an OKP private JWK supplies non-corresponding x and d components. As a result, identity derived from x can differ from operations performed with d. Consequently, if an integration also accepts private key parameters from a proof header without rejecting them, an attacker may use a stolen sender-constrained token without the legitimate private key. This issue is fixed in version 2.15.0.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N","score":8.2},"cwes":["CWE-345","CWE-348"],"references":["https://github.com/jpadilla/pyjwt/commit/3cd9ceec33ced359decbad75b413ad668ae6332c","https://github.com/jpadilla/pyjwt/releases/tag/2.15.0","https://github.com/jpadilla/pyjwt/security/advisories/GHSA-x33g-cr3x-6449","https://github.com/jpadilla/pyjwt/security/advisories/GHSA-x33g-cr3x-6449"],"products":["pyjwt_project:pyjwt"],"source":"nvd","synced_at":"2026-10-19T22:56:48.555445741+00:00"},"epss":{"cve":"CVE-2026-102275","score":0.00167,"percentile":0.05883,"date":"2026-10-25"},"kev":null,"osv":[{"id":"GHSA-x33g-cr3x-6449","url":"https://osv.dev/vulnerability/GHSA-x33g-cr3x-6449","summary":"PyJWT accepts inconsistent OKP x/d JWKs, causing public/private key identity confusion","modified":"2026-10-07T10:11:04.862065390Z","packages":[{"ecosystem":"PyPI","name":"pyjwt","purl":"pkg:pypi/pyjwt","ranges":[">=2.1.0 <2.15.0"],"fixed":["2.15.0"]}]},{"id":"PYSEC-2026-4183","url":"https://osv.dev/vulnerability/PYSEC-2026-4183","summary":"","modified":"2026-10-07T10:00:03.385350971Z","packages":[{"ecosystem":"PyPI","name":"pyjwt","purl":"pkg:pypi/pyjwt","ranges":[">=2.1.0 <2.15.0"],"fixed":["2.15.0"]}]}],"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."]}