CVE-2022-39227

CVE-2022-39227 CVE-2022-39227 : 概念验证 此 CVE-2022-39227 的概念验证代码。根据该CVE，JSON Web Token验证存在缺陷。可以通过有效的令牌，利用其签名与修改后的声明一起使用。 所需条件： 1. 一个有效的JSON Web Token。 2. 后端使用的是版本低于 3.3.4 的 Python 库 "python-jwt"。 为了方便使用，我在一次CTF中编写了一个简单的PoC： root@kitploit: usage: CVE-2022-39227-PoC -h -j TOKEN -i CLAIM Proof of Conce...

CVE-2026-29000

CVE-2026-29000 — pac4j-jwt JWE 认证绕过 研究 pac4j-jwt 库中 JWE 认证漏洞的 CTF 实验室 CVSS 9.3（严重）· CWE-287 · 受影响版本：pac4j-jwt ← 访问管理面板 ↓ 读取敏感数据：员工列表、系统配置、flag 项目结构 root@kitploit: CVE-2026-29000/ ├── lab/ 目标 – Flask 应用（NexusBank 员工门户） │ ├── app.py 存在漏洞的主应用 │ ├── Dockerfile 构建时将 Flag 写入 /flag.txt │ └──...

CVE-2023-4696

CVE-2023-4696 memos v0.13.2에서 JWT 토큰의 부적절한 처리로 인한 계정 탈취 설명 최근 usememos/memos 시스템에서 발견한 중요한 보안 취약점을 조명하고자 합니다. 이 취약점은 모든 사용자가 다른 사용자의 데이터비밀번호 포함를 비교적 쉽게 수정할 수 있게 합니다. 이 결함을 악용하면 공격자가 승인되지 않은 접근 권한을 얻어 민감한 정보에 접근할 수 있으며, 이는 다양한 보안 및 개인정보 보호 문제를 야기합니다. 이 발견의 세부 사항을 살펴보겠습니다. 이 취약점의 핵심은 안전한 데이터 교환을 위해...

kit-jwt

kit-jwt Codifica e decodifica JSON Web Token JWT per Kit TOC File File| Descrizione ---|--- .editorconfig| Configurazione della formattazione dell'editor .gitignore| Regole Git per ignorare artefatti di build e dipendenze .tool-versions| Versioni degli strumenti asdf Zig, Kit LICENSE| File della...

CVE-2026-50149 Contour has Improper JWT Verification for Non-SNI Requests on Virtual Hosts with Fallback Certificate Enabled

Contour is a Kubernetes ingress controller using Envoy proxy. In versions 1.23.0 through 1.33.4, when an HTTPProxy is configured with incompatible combination of both .spec.virtualhost.tls.enableFallbackCertificate: true and .spec.virtualhost.jwtProviders, Contour does not reject the configuratio...

CVE-2026-55165

Lemur manages TLS certificate creation. Prior to 1.9.2, the JWT verifier in lemur/auth/service.py:130-137 used fetchtokenheader to read headerdata"alg" from an unverified token and passed that attacker-controlled value to decodewithmultiplesecrets. PyJWT 2.x rejects alg=none with the configured...

CVE-2026-55165 Lemur : JWT verifier trusts attacker-supplied alg from token header — defense-in-depth gap; chain-dependent ATO with secret disclosure

Lemur manages TLS certificate creation. Prior to 1.9.2, the JWT verifier in lemur/auth/service.py:130-137 used fetchtokenheader to read headerdata"alg" from an unverified token and passed that attacker-controlled value to decodewithmultiplesecrets. PyJWT 2.x rejects alg=none with the configured...

CVE-2026-18500

CVE-2026-18500 concerns the @fastify/jwt plugin for Fastify. In versions before 10.2.2, a per-request key passed to request.jwtVerify({ key }) can be silently overridden by the plugin’s globally configured secret due to the option merge applying the global key last. This allows an ordinary authen...

CVE-2026-59243

The CVE-2026-59243 vulnerability affects the apache-airflow-providers-fab package before 3.7.3, where the FAB auth manager’s Azure AD OAuth login defaulted verify_signature=False when decoding the ID token. An attacker who can present a forged or unsigned (alg:none) ID token to the OAuth callback...

Security Bulletin: Investigation Assistant App for IBM QRadar SIEM is vulnerable to using components with known vulnerabilities

Summary The product includes vulnerable components e.g., framework libraries that could be identified and exploited with automated tools. Investigation Assistant App for IBM QRadar SIEM has addressed the applicable CVEs in an update. Vulnerability Details CVEID:CVE-2026-48522 DESCRIPTION: PyJWT i...

Security Bulletin: IBM Cloud Pak for Data System (CPDS 1.0) is affected by multiple vulnerabilities due to PyJWT

Summary PyJWT is used by IBM Cloud Pak for Data System 1.0 as a Python library for encoding and decoding JSON Web Tokens JWT for authentication and authorization. Multiple vulnerabilities affect PyJWT. CVE-2026-48522 involves a Server-Side Request Forgery SSRF vulnerability where PyJWKClient pass...

CVE-2026-45363

CVE-2026-45363 affects the ruby-jwt gem (Ruby implementation of JWT). Prior to versions 2.10.3 and 3.2.0, JWT.decode(token, '', true, algorithm: 'HS256') can accept attacker-forged tokens because OpenSSL::HMAC.digest('SHA256', '', payload) yields a valid digest with an empty key, and empty-key pa...

CVE-2026-45069

Symfony is a PHP framework for web and console applications and a set of reusable PHP components. Prior to 6.4.40, 7.4.12, and 8.0.12, OidcTokenHandler::verifyClaims registered audience aud, issuer iss, and expiry exp checkers but did not pass the mandatory claims list to...

EUVD-2026-37897

Woodpecker gRPC agentid metadata can be spoofed- cross-tenant agent impersonation...

GHSA-G3XR-5W5J-W4Q4 Contour has Improper JWT Verification for Non-SNI Requests on Virtual Hosts with Fallback Certificate Enabled

Impact When an HTTPProxy is configured with incompatible combination of both .spec.virtualhost.tls.enableFallbackCertificate: true and .spec.virtualhost.jwtProviders, Contour does not reject the configuration. Consequently, requests from clients that do not send TLS SNI or send an unrecognized SN...

PT-2026-55460

Name of the Vulnerable Software and Affected Versions Contour versions prior to 1.33.5 Description An issue exists when an HTTPProxy is configured with both .spec.virtualhost.tls.enableFallbackCertificate: true and .spec.virtualhost.jwtProviders. In this scenario, the system fails to reject the...

PyJWKClient: missing scheme allowlist enables CVE-2024-21643-class SSRF + token forgery via file://, ftp://, data: schemes

!NOTE The library does not directly return non-HTTPS URI contents to the attacker; the chained "plant a JWKS to forge tokens" scenario described in the original report requires additional application-layer flaws attacker write access to a filesystem path, untrusted jku derivation that this fix do...

EUVD-2026-32927

Hono: JWT middleware accepts any Authorization scheme, not only Bearer...

CVE-2026-47673

Hono is a Web application framework that provides support for any JavaScript runtime. Prior to 4.12.21, the jwt and jwk middlewares do not verify that the Authorization header value uses theBearer scheme. Any two-part header value — regardless of the scheme name in the first position — proceeds t...

CVE-2026-47673

Hono is a Web application framework that provides support for any JavaScript runtime. Prior to 4.12.21, the jwt and jwk middlewares do not verify that the Authorization header value uses theBearer scheme. Any two-part header value — regardless of the scheme name in the first position — proceeds t...