cve-2021-34558

POC for CVE-2021-34558 Run the malicious TLS server go run main.go -mode server Run a normal http.Get client call against the server which panics go run main.go -mode client There is a minor modification to ./vendor/github.com/refraction-networking/utls/handshakeserver.go to enable the malicious...

CVE-2014-3466_PoC

Proof of Concept for CVE-2014-3466 GnuTLS buffer overflow: session id length check Information See: https://bugzilla.redhat.com/showbug.cgi?id=1101932 This is not a weaponized exploit. be warned: this python code is ugly, I pretty much handcrafted the ServerHello and spent only about five fifteen...

CVE-2026-81518

A flaw was found in mongosqld. When mongosqld is configured to use client certificates for authentication, it requests a certificate during the TLS Transport Layer Security handshake but does not enforce its presence. This allows a remote attacker with network access to establish a session withou...

explain-my-curl

explain-my-curl explain-my-curl is a local-first CLI for understanding what a curl command is doing across DNS, TLS, and HTTP. This repository currently includes: A CLI command to parse and explain a curl input A starter TUI for interactive exploration Execution telemetry for DNS, TCP connect, TL...

CLEANSTART-2026-EB50252 TCP client can perform a TLS handshake and present the server name extension with a server name that is accepted by a server wildcard name, e

Security vulnerability affects the strimzi-kafka-operator package. A TCP client can perform a TLS handshake and present the server name extension with a server name that is accepted by a server wildcard name, e...

CVE-2026-106464

nxsecurex509parsesignaturedata computes the certificate signature's length as tlvlength - 1 without first checking that tlvlength is non-zero. A certificate whose signature is an empty ASN.1 BIT STRING therefore parses successfully and leaves the certificate holding a signature length of 0xFFFFFF...

CVE-2026-106464

nxsecurex509parsesignaturedata computes the certificate signature's length as tlvlength - 1 without first checking that tlvlength is non-zero. A certificate whose signature is an empty ASN.1 BIT STRING therefore parses successfully and leaves the certificate holding a signature length of 0xFFFFFF...

CVE-2026-106464

nxsecurex509parsesignaturedata computes the certificate signature's length as tlvlength - 1 without first checking that tlvlength is non-zero. A certificate whose signature is an empty ASN.1 BIT STRING therefore parses successfully and leaves the certificate holding a signature length of 0xFFFFFF...

CVE-2026-106464

The _nx_secure_x509_parse_signature_data function is vulnerable to an integer underflow and out-of-bounds read due to a lack of check on the tlv_length variable. If a certificate contains an empty ASN.1 BIT STRING signature, the function computes a length of 0xFFFFFFFF and sets a pointer one byte...

EUVD-2026-101502

nxsecurex509parsesignaturedata computes the certificate signature's length as tlvlength - 1 without first checking that tlvlength is non-zero. A certificate whose signature is an empty ASN.1 BIT STRING therefore parses successfully and leaves the certificate holding a signature length of 0xFFFFFF...

wolfSSL public-key pinning bypass

When built with wolfSSL, curl can successfully validate a pinned public key hash against a key the TLS peer does not possess. During the TLS handshake, wolfSSL validates the connection, but curl's subsequent re-parsing of the same certificate - tricked by a manipulated validity length field -...

CURL-CVE-2026-87866 wolfSSL public-key pinning bypass

When built with wolfSSL, curl can successfully validate a pinned public key hash against a key the TLS peer does not possess. During the TLS handshake, wolfSSL validates the connection, but curl's subsequent re-parsing of the same certificate - tricked by a manipulated validity length field -...

Security update for libtcnative-2-0

This update for libtcnative-2-0 fixes the following issues: CVE-2026-86243: buffer overread during the TLS handshake permits a malicious user to trigger a DoS via a JVM crash bsc1282623. CVE-2026-86246: insecure ALLOWCLIENTRENEGOTIATION, NOEXTENDEDMASTERSECRET, IGNOREUNEXPECTEDEOF and ALLOWNODHEK...

SUSE-SU-2026:4658-1 Security update for libtcnative-2-0

This update for libtcnative-2-0 fixes the following issues: - CVE-2026-86243: buffer overread during the TLS handshake permits a malicious user to trigger a DoS via a JVM crash bsc1282623. - CVE-2026-86246: insecure ALLOWCLIENTRENEGOTIATION, NOEXTENDEDMASTERSECRET, IGNOREUNEXPECTEDEOF and...

CVE-2026-8932

🚨 CVE-2026-8932 - The Oldest libcurl Security Bug Incomplete mTLS Configuration Matching in libcurl The oldest security vulnerability ever fixed in libcurl—remaining unnoticed for over 25 years. 📖 Overview CVE-2026-8932 is a security vulnerability in libcurl where the library may incorrectly reus...

DEBIAN-CVE-2026-109245

FreeRDP 3.0.0 before 3.32.0 contains an improper certificate validation vulnerability in freerdphttprequest in libfreerdp/utils/http.c that completes TLS handshakes without verifying the server certificate chain. On-path attackers can impersonate login.microsoftonline.com in the Azure AD...

CVE-2026-109245

FreeRDP 3.0.0 before 3.32.0 contains an improper certificate validation vulnerability in freerdphttprequest in libfreerdp/utils/http.c that completes TLS handshakes without verifying the server certificate chain. On-path attackers can impersonate login.microsoftonline.com in the Azure AD...

EUVD-2026-97689

FreeRDP 3.0.0 before 3.32.0 contains an improper certificate validation vulnerability in freerdphttprequest in libfreerdp/utils/http.c that completes TLS handshakes without verifying the server certificate chain. On-path attackers can impersonate login.microsoftonline.com in the Azure AD...

CVE-2026-109245

Versions of FreeRDP 3.0.0 before 3.32.0 are vulnerable to an improper certificate validation flaw within the freerdp_http_request() function located in libfreerdp/utils/http.c. The root cause is that the software completes TLS handshakes without verifying the server certificate chain. This allows...

CVE-2026-109245

FreeRDP 3.0.0 before 3.32.0 contains an improper certificate validation vulnerability in freerdphttprequest in libfreerdp/utils/http.c that completes TLS handshakes without verifying the server certificate chain. On-path attackers can impersonate login.microsoftonline.com in the Azure AD...