CVE-2026-21003-JWT-none-Algorithm-Bypass-via-kid-Header-Omission

CVE-2026-21003 – JWT "none" Algorithm Bypass via kid Header Omission Program Code Node.js // jwtverifyserver.js - Vulnerable JWT verification const jwt = require'jsonwebtoken'; const express = require'express'; const app = express; app.useexpress.json; const publicKey = -----BEGIN PUBLIC KEY-----...

Stealth-Kid-RAT

Stealth Kid RAT Codename: Kiddo Version: 0.01A Stealth Kid RAT is an opensource remote administration tool written in C. Currently delevoped under POC Concept branch. Under development features:- TCP network stream IPv4 & IPv6 support Fast network serialization NetSerializer Compressed QuickLZ &...

CVE-2026-49230-APISIX-jwe-decrypt-Auth-Bypass

CVE-2026-49230 — Apache APISIX jwe-decrypt Authentication Bypass Proof of concept for an authentication bypass in the Apache APISIX jwe-decrypt plugin. The plugin decrypts a JWE token and forwards its plaintext to the upstream, acting as an authentication gate — but it never validates the AES-GCM...

CVE-2026-4444-JWT-Algorithm-Confusion-via-kid-Injection

CVE-2026-4444 – JWT Algorithm Confusion via kid Injection Program Code Node.js server + Python exploit // jwtserver.js - Vulnerable JWT verification server const express = require'express'; const jwt = require'jsonwebtoken'; const jwksClient = require'jwks-rsa'; const axios = require'axios'; cons...

CVE-2026-89313 JwksTrustStore.Get returns the last fetched JWKS key (err=nil) when the requested kid is absent, instead of nil

JwksTrustStore.Get assigned each parsed key to the function's named return value while refreshing the JWKS cache. When the requested kid was not present, the trailing naked return handed the caller the last key in the JWKS document together with a nil error — a confidently wrong answer instead of...

CVE-2026-89313 JwksTrustStore.Get returns the last fetched JWKS key (err=nil) when the requested kid is absent, instead of nil

JwksTrustStore.Get assigned each parsed key to the function's named return value while refreshing the JWKS cache. When the requested kid was not present, the trailing naked return handed the caller the last key in the JWKS document together with a nil error — a confidently wrong answer instead of...

CVE-2026-89313 JwksTrustStore.Get returns the last fetched JWKS key (err=nil) when the requested kid is absent, instead of nil

JwksTrustStore.Get assigned each parsed key to the function's named return value while refreshing the JWKS cache. When the requested kid was not present, the trailing naked return handed the caller the last key in the JWKS document together with a nil error — a confidently wrong answer instead of...

CVE-2026-89313

The JwksTrustStore.Get function in the gose library is vulnerable to a logic error where it returns the last fetched JWKS key with a nil error when a requested kid is absent. This occurs because the function assigns parsed keys to a named return value during cache refreshes, and a trailing naked ...

jwt-key-id-injector

Inyector de ID de Clave JWT Script simple de Python para verificar una vulnerabilidad hipotética de JWT. Supongamos que hay una aplicación que utiliza tokens JWT firmados con el algoritmo HS256. Un token de ejemplo se ve así:...

PyJWT: PyJWKClient still amplifies unauthenticated JWKS fetches on unknown kid values (incomplete fix of CVE-2026-48524)

SummaryCVE-2026-48524 GHSA-fhv5-28vv-h8m8, "PyJWKClient unbounded JWKS endpoint requests via attacker-controlled kid values DoS" was fixed in 2.13.0 by stopping fetchdata from clearing the cache on a fetch error. That closed one amplification path but did not add the mitigation the advisory's tit...

Linux Distros Unpatched Vulnerability : CVE-2026-101917

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. Prior to 2.14.0, PyJWT getsigningkeyfromjwt is affected because unknown kid misses force refreshes...

PyJWT: PyJWKClient still amplifies unauthenticated JWKS fetches on unknown kid values (incomplete fix of CVE-2026-48524)

Summary CVE-2026-48524 GHSA-fhv5-28vv-h8m8, "PyJWKClient unbounded JWKS endpoint requests via attacker-controlled kid values DoS" was fixed in 2.13.0 by stopping fetchdata from clearing the cache on a fetch error. That closed one amplification path but did not add the mitigation the advisory's...

GHSA-2GX3-RCP4-G85Q PyJWT: PyJWKClient still amplifies unauthenticated JWKS fetches on unknown kid values (incomplete fix of CVE-2026-48524)

Summary CVE-2026-48524 GHSA-fhv5-28vv-h8m8, "PyJWKClient unbounded JWKS endpoint requests via attacker-controlled kid values DoS" was fixed in 2.13.0 by stopping fetchdata from clearing the cache on a fetch error. That closed one amplification path but did not add the mitigation the advisory's...

AZL-104982 CVE-2026-101917 affecting package python-jwt for versions less than 2.15.1-1

PyJWT is a Python implementation of JSON Web Token standards. Prior to 2.14.0, PyJWT getsigningkeyfromjwt is affected because unknown kid misses force refreshes without a negative cache or minimum refresh interval. This occurs when unauthenticated tokens repeatedly use the same unknown kid or...

PT-2026-108325

PyJWT is a Python implementation of JSON Web Token standards. Prior to 2.14.0, PyJWT get signing key from jwt is affected because unknown kid misses force refreshes without a negative cache or minimum refresh interval. This occurs when unauthenticated tokens repeatedly use the same unknown kid or...

smallrye-jwt: quarkus-smallrye-jwt: smallrye-jwt: Unauthenticated same-origin SSRF via unsanitized JWT kid header in AwsAlbKeyResolver

A flaw was found in SmallRye JWT's AwsAlbKeyResolver, which is used by applications to verify JSON Web Tokens signed by AWS Application Load Balancers. When the AWSALB key provider is configured, the resolver constructs the key-fetch URL by directly concatenating the attacker-controlled kid heade...

smallrye-jwt: quarkus-smallrye-jwt: smallrye-jwt: Unauthenticated same-origin SSRF via unsanitized JWT kid header in AwsAlbKeyResolver

A flaw was found in SmallRye JWT's AwsAlbKeyResolver, which is used by applications to verify JSON Web Tokens signed by AWS Application Load Balancers. When the AWSALB key provider is configured, the resolver constructs the key-fetch URL by directly concatenating the attacker-controlled kid heade...

CVE-2026-81829

A flaw was found in SmallRye JWT's AwsAlbKeyResolver, which is used by applications to verify JSON Web Tokens signed by AWS Application Load Balancers. When the AWSALB key provider is configured, the resolver constructs the key-fetch URL by directly concatenating the attacker-controlled kid heade...

CVE-2026-81829

CVE-2026-81829 is a same-origin SSRF vulnerability in SmallRye JWT 's AwsAlbKeyResolver , used by applications (e.g., Quarkus) to verify JWTs signed by AWS Application Load Balancers. The root cause is that the resolver constructs the key-fetch URL by directly concatenating the attacker-controlle...

EUVD-2026-81617

A flaw was found in SmallRye JWT's AwsAlbKeyResolver, which is used by applications to verify JSON Web Tokens signed by AWS Application Load Balancers. When the AWSALB key provider is configured, the resolver constructs the key-fetch URL by directly concatenating the attacker-controlled kid heade...