CVE-2026-8932

CVE-2026-8932 : The vulnerability describes incomplete mTLS config matching in libcurl’s connection reuse logic. A previously used TLS client-certificate-related setting (notably the private key) was omitted from the configuration match checks, causing connections in the pool to be reused even wh...

CVE-2026-8932

libcurl would reuse a previously created connection even when some mTLS config related option had been changed that should have prohibited reuse. libcurl keeps previously used connections in a connection pool for subsequent transfers to reuse if one of them matches the setup. However, some TLS...

EUVD-2026-40374

Nightingale n9e before 9.0.0-beta.2 exposes full datasource configurations, including plaintext database passwords, HTTP bearer tokens, HTTP basic-auth passwords, and mTLS client keys, to any authenticated low-privilege Standard role user through POST /api/n9e/datasource/list. The route is...

CVE-2026-48491

Traefik is an HTTP reverse proxy and load balancer. From 3.7.0 until 3.7.3, there is a high severity vulnerability in Traefik's domain-fronting protection SNICheck that allows an unauthenticated client to bypass mutual TLS enforced through wildcard router TLSOptions. When a router uses a wildcard...

GHSA-GFJ5-979R-92PW @acastellon/auth: Authentication bypass via spoofable headers in validateToken()

@acastellon/auth v2.2.0 appears to allow an unauthenticated authentication bypass in validateToken through spoofable auth-user and Host request headers. The validateToken middleware contains a service-to-service bypass for auth-user: service-brother when req.get'host'.startsWithgetHostName. Both...

CVE-2026-42789

A flaw was found in Erlang OTP's publickey module. This vulnerability CWE-295, related to improper certificate validation, allows a non-Certificate Authority CA certificate to be accepted as an intermediate issuer. A remote attacker, holding an end-entity certificate issued by a trusted CA, can...

curl: CVE-2026-8932: incomplete mTLS config matching in conn reuse

Hi all, This report and my multiple subsequent ones may come as a surprise, as I was assured that curl now had zero vulnerabilities in it. Nonetheless, I think the CVE-2022-27782 fix "TLS and SSH connection too eager reuse", commit f18af4f874 2022-05-09, "tls: check more TLS details for connectio...

Oxia's TLS CA certificate chain validation fails with multi-certificate PEM bundles

Summary The trustedCertPool function in the TLS configuration only parses the first PEM block from CA certificate files. When a CA bundle contains multiple certificates e.g., intermediate + root CA, only the first certificate is loaded. This silently breaks certificate chain validation for mTLS...

BIT-ETCD-2026-33343 etcd: Nested etcd transactions bypass RBAC authorization checks

etcd is a distributed key-value store for the data of a distributed system. Prior to versions 3.4.42, 3.5.28, and 3.6.9, an authenticated user with RBAC restricted permissions on key ranges can use nested transactions to bypass all key-level authorization. This allows any authenticated user with...

GO-2026-4723 Sliver Vulnerable to Authenticated OOM via Memory Exhaustion in mTLS/WireGuard Transports in github.com/bishopfox/sliver

Sliver Vulnerable to Authenticated OOM via Memory Exhaustion in mTLS/WireGuard Transports in github.com/bishopfox/sliver...

GO-2026-4828 NATS has mTLS verify_and_map authentication bypass via incorrect Subject DN matching in github.com/nats-io/nats-server

NATS has mTLS verifyandmap authentication bypass via incorrect Subject DN matching in github.com/nats-io/nats-server...

Allocation of Resources Without Limits or Throttling

Overview Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling via the mTLS or WireGuard transports. An attacker can cause the process to consume excessive memory and potentially crash by sending specially crafted authenticated requests that...

CVE-2026-33248 NATS has mTLS verify_and_map authentication bypass via incorrect Subject DN matching

NATS-Server is a High-Performance server for NATS.io, a cloud and edge native messaging system. Prior to versions 2.11.15 and 2.12.6, when using mTLS for client identity, with verifyandmap to derive a NATS identity from the client certificate's Subject DN, certain patterns of RDN would not be...

CVE-2026-33248

NATS-Server is a High-Performance server for NATS.io, a cloud and edge native messaging system. Prior to versions 2.11.15 and 2.12.6, when using mTLS for client identity, with verifyandmap to derive a NATS identity from the client certificate's Subject DN, certain patterns of RDN would not be...

GHSA-3F24-PCVM-5JQC NATS has mTLS verify_and_map authentication bypass via incorrect Subject DN matching

Background NATS.io is a high performance open source pub-sub distributed communication technology, built for the cloud, on-premise, IoT, and edge computing. One authentication model supported is mTLS, deriving the NATS client identity from properties of the TLS Client Certificate. Problem...

Traefik 安全漏洞

Traefik is an open-source reverse proxy and load balancing tool developed by Traefik. Versions of Traefik such as 2.11.40, 3.0.0-beta1 to 3.6.11, and 3.7.0-ea.1 contain security vulnerabilities. These vulnerabilities stem from issues with the TLS SNI pre-sniffing logic, which may allow for...

PT-2026-1769

Name of the Vulnerable Software and Affected Versions wolfssl-py versions up to and including 5.8.2 Description A flaw exists in the handling of verify mode = CERT REQUIRED within the wolfssl Python package wolfssl-py. The absence of the WOLFSSL VERIFY FAIL IF NO PEER CERT flag causes the softwar...

Improper Authentication

Akka.NET is vulnerable to improper authentication. The vulnerability is due to the lack of mutual TLS enforcement in Akka.Remote, which allows an attacker to connect to a TLS-enabled cluster without presenting a valid client certificate and thereby communicate with the cluster...

CVE-2025-64432 KubeVirt Affected by an Authentication Bypass in Kubernetes Aggregation Layer

KubeVirt is a virtual machine management add-on for Kubernetes. Versions 1.5.3 and below, and 1.6.0 contained a flawed implementation of the Kubernetes aggregation layer's authentication flow which could enable bypass of RBAC controls. It was discovered that the virt-api component fails to...

CVE-2025-55108

The Control-M/Agent is vulnerable to unauthenticated remote code execution, arbitrary file read and write and similar unauthorized actions when mutual SSL/TLS authentication is not enabled i.e. in the default configuration. NOTE: The vendor believes that this vulnerability only occurs when...