POC-CVE-2018-0114

CVE-2018-0114 POC A vulnerability in the Cisco node-jose open source library before 0.11.0 could allow an unauthenticated, remote attacker to re-sign tokens using a key that is embedded within the token. The vulnerability is due to node-jose following the JSON Web Signature JWS standard for JSON...

CVE-2018-0114

CVE-2018-0114 Explotación de una vulnerabilidad en node-jose de Cisco, una biblioteca JavaScript creada para gestionar JWT. Esta vulnerabilidad en node-jose de Cisco permite a un atacante falsificar tokens maliciosos. JWT permite a los usuarios incrustar claves públicas usando el valor jwk dentro...

GHSA-X33G-CR3X-6449 PyJWT accepts inconsistent OKP x/d JWKs, causing public/private key identity confusion

Summary PyJWT accepts internally inconsistent OKP private JWKs where the declared public key x does not correspond to the supplied private key d. When d is present, OKPAlgorithm.fromjwk constructs the Ed25519/Ed448 private key from d without verifying that the public key derived from d matches x...

PyJWT accepts inconsistent OKP x/d JWKs, causing public/private key identity confusion

Summary PyJWT accepts internally inconsistent OKP private JWKs where the declared public key x does not correspond to the supplied private key d. When d is present, OKPAlgorithm.fromjwk constructs the Ed25519/Ed448 private key from d without verifying that the public key derived from d matches x...

jwt-spoof-tool

jwt-spoof-tool Tool Description : I made this tool for learning purpose and automating jwt token hijacking without depending on using burpsuite the code is well documented and easy to follow Based on CVE-2018-0114 The Vulnerabilty happend because in backend the server check jwk object embeded...

CVE-2018-0114-PoC

CVE-2018-0114 PoC Wrote this for PentesterLab If you are from PentesterLab's don't cheat, it's alot better to learn. Hope it's useful to someone, if not to me in the future : Example $ python3 script.py Making keys... 'alg': 'RS256', 'jwk': 'kty': 'RSA', 'kid': '[email protected]', 'use':...

PyJWT: Malformed RSA JWK aborts parsing of an entire JWK Set

SummaryA malformed RSA JWK inside a JWK Set aborts parsing of the entire set instead of being skipped, because RSAAlgorithm.fromjwk can raise a plain ValueError that isn't caught by PyJWKSet's per-key error-skipping logic. Affected component / version- Package: PyJWT PyPI, ecosystem pip- Files:...

PyJWT accepts public JWK containers as HMAC secrets

SummaryPyJWT 2.13.0 contains an incomplete defense against algorithm confusion whenan application mixes symmetric and asymmetric algorithms in one verificationpath. A public RSA, EC, or OKP JWK can be accepted as an HMAC secret when itis wrapped in a JWKS object, nested in an array, or represente...

Linux Distros Unpatched Vulnerability : CVE-2026-102272

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - PyJWT is a Python implementation of JSON Web Token standards. From 2.13.0 until 2.14.0, HMACAlgorithm.preparekey in jwt/algorithms.py is affected because raw-JW...

GHSA-W6J9-CWV2-H6WQ PyJWT: Malformed RSA JWK aborts parsing of an entire JWK Set

Summary A malformed RSA JWK inside a JWK Set aborts parsing of the entire set instead of being skipped, because RSAAlgorithm.fromjwk can raise a plain ValueError that isn't caught by PyJWKSet's per-key error-skipping logic. Affected component / version - Package: PyJWT PyPI, ecosystem pip - Files...

PyJWT: Malformed RSA JWK aborts parsing of an entire JWK Set

Summary A malformed RSA JWK inside a JWK Set aborts parsing of the entire set instead of being skipped, because RSAAlgorithm.fromjwk can raise a plain ValueError that isn't caught by PyJWKSet's per-key error-skipping logic. Affected component / version - Package: PyJWT PyPI, ecosystem pip - Files...

CVE-2026-102275

A flaw was found in PyJWT. When importing an Octet Key Pair OKP private JSON Web Key JWK, the library does not verify that the public key component matches the private key component. In applications that accept private key parameters from proof headers, a remote attacker can exploit this...

Open Redirect

Overview PyJWT is a Python implementation of RFC 7519. Affected versions of this package are vulnerable to Open Redirect via the fetchdata method in jwt/jwksclient.py, which follows HTTP redirects when fetching a JWK Set from a remote URI. An attacker who can influence the JWKS endpoint URL or...

CVE-2026-102273

A flaw was found in PyJWT. This vulnerability allows an unauthenticated remote attacker to bypass authentication by forging arbitrary JSON Web Tokens JWTs. When an application allows both symmetric and asymmetric algorithms, PyJWT fails to properly validate public JSON Web Key JWK container...

CVE-2026-102272

A flaw was found in pyjwt. When verifying cryptographic keys, the raw JSON Web Key JWK parser fails to normalize Unicode byte-order marks BOM. In mixed-algorithm verification environments, an attacker who knows the public key can supply a key prefixed with a byte-order mark, causing the system to...

DEBIAN-CVE-2026-102275

PyJWT is a Python implementation of JSON Web Token standards. From 2.1.0 until 2.15.0, PyJWT OKPAlgorithm.fromjwk 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 ...

AZL-105233 CVE-2026-102275 affecting package python-jwt 2.13.0-1

PyJWT is a Python implementation of JSON Web Token standards. From 2.1.0 until 2.15.0, PyJWT OKPAlgorithm.fromjwk 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 ...

AZL-105227 CVE-2026-102273 affecting package python-jwt 2.13.0-1

PyJWT is a Python implementation of JSON Web Token standards. From 2.13.0 until 2.14.0, PyJWT HMACAlgorithm.preparekey is affected because HMAC key guard only recognizes top-level public JWK forms and misses container representations. This occurs when an application allows HMAC and asymmetric...

DEBIAN-CVE-2026-102273

PyJWT is a Python implementation of JSON Web Token standards. From 2.13.0 until 2.14.0, PyJWT HMACAlgorithm.preparekey is affected because HMAC key guard only recognizes top-level public JWK forms and misses container representations. This occurs when an application allows HMAC and asymmetric...

AZL-105239 CVE-2026-102266 affecting package python-jwt 2.13.0-1

PyJWT is a Python implementation of JSON Web Token standards. From 2.13.0 until 2.14.0, HMACAlgorithm.fromjwk is affected because PyJWK verification path used the decoded key without applying preparekey validation. This occurs when a trusted JWK Set contains an oct entry with an empty k value. As...