When Handshakes Tell the Truth: Detecting Web Bad Bots Via TLS Fingerprints

Automated traffic continued to surpass human-generated traffic on the web, and a rising proportion of this automation was explicitly malicious. Evasive bots could pretend to be real users, even solve Captchas and mimic human interaction patterns. This work explores a less intrusive, protocol-leve...

📄 crypto/x509 TLS Certificate Parsing

This Go program demonstrates a theoretical denial of service risk associated with handling unusually large X.509 certificates in TLS connections. It programmatically generates a self-signed certificate containing a very large number of Subject Alternative Names SANs and configures an HTTP client ...

CVE-2026-1584

A flaw was found in gnutls. A remote, unauthenticated attacker can exploit this vulnerability by sending a specially crafted ClientHello message with an invalid Pre-Shared Key PSK binder value during the TLS handshake. This can lead to a NULL pointer dereference, causing the server to crash and...

GnuTLS security vulnerabilities

GnuTLS is an open-source, free security communication library developed by GnuTLS that enables the implementation of SSL, TLS, and DTLS protocols. There is a security vulnerability in gnutls. This vulnerability stems from the possibility of remote, unverified attackers sending specially crafted...

CVE-2025-61730

During the TLS 1.3 handshake if multiple messages are sent in records that span encryption level boundaries for instance the Client Hello and Encrypted Extensions messages, the subsequent messages may be processed before the encryption level changes. This can cause some minor information disclosu...

CVE-2025-68121

During session resumption in crypto/tls, if the underlying Config has its ClientCAs or RootCAs fields mutated between the initial handshake and the resumed handshake, the resumed handshake may succeed when it should have failed. This may happen when a user calls Config.Clone and mutates the...

AZL-98847 CVE-2025-68121 affecting package golang 1.27.1-1

During session resumption in crypto/tls, if the underlying Config has its ClientCAs or RootCAs fields mutated between the initial handshake and the resumed handshake, the resumed handshake may succeed when it should have failed. This may happen when a user calls Config.Clone and mutates the...

UBUNTU-CVE-2025-68121

During session resumption in crypto/tls, if the underlying Config has its ClientCAs or RootCAs fields mutated between the initial handshake and the resumed handshake, the resumed handshake may succeed when it should have failed. This may happen when a user calls Config.Clone and mutates the...

CVE-2025-68121 Unexpected session resumption in crypto/tls

During session resumption in crypto/tls, if the underlying Config has its ClientCAs or RootCAs fields mutated between the initial handshake and the resumed handshake, the resumed handshake may succeed when it should have failed. This may happen when a user calls Config.Clone and mutates the...

CVE-2025-68121

During session resumption in crypto/tls, if the underlying Config has its ClientCAs or RootCAs fields mutated between the initial handshake and the resumed handshake, the resumed handshake may succeed when it should have failed. This may happen when a user calls Config.Clone and mutates the...

EUVD-2025-206854

During session resumption in crypto/tls, if the underlying Config has its ClientCAs or RootCAs fields mutated between the initial handshake and the resumed handshake, the resumed handshake may succeed when it should have failed. This may happen when a user calls Config.Clone and mutates the...

CVE-2025-68121 Unexpected session resumption in crypto/tls

During session resumption in crypto/tls, if the underlying Config has its ClientCAs or RootCAs fields mutated between the initial handshake and the resumed handshake, the resumed handshake may succeed when it should have failed. This may happen when a user calls Config.Clone and mutates the...

qemu-kvm: VNC WebSocket handshake use-after-free

A flaw was found in QEMU. If the QIOChannelWebsock object is freed while it is waiting to complete a handshake, a GSource is leaked. This can lead to the callback firing later on and triggering a use-after-free in the use of the channel. This can be abused by a malicious client with network acces...

nodejs: Nodejs denial of service

A flaw in Node.js TLS error handling allows remote attackers to crash or exhaust resources of a TLS server when pskCallback or ALPNCallback are in use. Synchronous exceptions thrown during these callbacks bypass standard TLS error handling paths tlsClientError and error, causing either immediate...

nodejs: Nodejs denial of service

A flaw in Node.js TLS error handling allows remote attackers to crash or exhaust resources of a TLS server when pskCallback or ALPNCallback are in use. Synchronous exceptions thrown during these callbacks bypass standard TLS error handling paths tlsClientError and error, causing either immediate...

Important: golang

Issue Overview: net/http: memory exhaustion in Request.ParseForm CVE-2025-61726 archive/zip: denial of service when parsing arbitrary ZIP archives CVE-2025-61728 crypto/tls: handshake messages may be processed at the incorrect encryption level CVE-2025-61730 cmd/go: bypass of flag sanitization ca...

Medium: runc

Issue Overview: net/http: memory exhaustion in Request.ParseForm CVE-2025-61726 archive/zip: denial of service when parsing arbitrary ZIP archives CVE-2025-61728 crypto/tls: handshake messages may be processed at the incorrect encryption level CVE-2025-61730 crypto/tls: Config.Clone copies...

Amazon Linux 2 : golist, --advisory ALAS2-2026-3138 (ALAS-2026-3138)

The version of golist installed on the remote host is prior to 0.10.1-10. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2-2026-3138 advisory. net/http: memory exhaustion in Request.ParseForm CVE-2025-61726 archive/zip: denial of service when parsing arbitrary ZIP...

Amazon Linux 2 : golang, --advisory ALAS2-2026-3136 (ALAS-2026-3136)

The version of golang installed on the remote host is prior to 1.24.12-1. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2-2026-3136 advisory. net/http: memory exhaustion in Request.ParseForm CVE-2025-61726 archive/zip: denial of service when parsing arbitrary ZIP...

RHEL 10 : qemu-kvm (RHSA-2026:1831)

The remote Redhat Enterprise Linux 10 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2026:1831 advisory. Kernel-based Virtual Machine KVM is a full virtualization solution for Linux on a variety of architectures. The qemu-kvm packages provide the...