Unchecked Return Value

Overview Affected versions of this package are vulnerable to Unchecked Return Value due to improper error handling in the provision function. An attacker can gain unauthorized access by presenting a client certificate signed by any system-trusted certificate authority, bypassing the intended...

CVE-2026-27586

Caddy is an extensible server platform that uses TLS by default. Prior to version 2.11.1, two swallowed errors in ClientAuthentication.provision cause mTLS client certificate authentication to silently fail open when a CA certificate file is missing, unreadable, or malformed. The server starts...

Caddy 安全漏洞

Caddy is an open-source, cross-platform HTTP/Web server developed by the Caddy company. Versions of Caddy prior to 2.11.1 contained security vulnerabilities. These vulnerabilities were caused by two ignored errors in the ClientAuthentication.provision function, which led to a silent failure in mT...

CVE-2026-24122

Cosign provides code signing and transparency for containers and binaries. In versions 3.0.4 and below, an issuing certificate with a validity that expires before the leaf certificate will be considered valid during verification even if the provided timestamp would mean the issuing certificate...

PT-2026-20949

Name of the Vulnerable Software and Affected Versions Cosign versions 3.0.4 and below Description Cosign is a tool that provides code signing and transparency for containers and binaries. A flaw in the certificate validation process allows expired intermediate Certificate Authorities to validate...

Astra Linux – Vulnerability in easy-rsa

The weak encryption algorithm in the Easy-RSA version 3.0.5 to 3.1.7 allows a local attacker to more easily brute-force the private CA key when it is created using OpenSSL 3...

GHSA-W252-645G-87MP Openfire has potential identity spoofing issue via unsafe CN parsing

Summary Identity spoofing in X.509 client certificate authentication in Openfire allows internal attackers to impersonate other users via crafted certificate subject attributes, due to regex-based extraction of CN from an unescaped, provider-dependent DN string. Analysis Openfire’s SASL EXTERNAL...

Openfire has potential identity spoofing issue via unsafe CN parsing

Summary Identity spoofing in X.509 client certificate authentication in Openfire allows internal attackers to impersonate other users via crafted certificate subject attributes, due to regex-based extraction of CN from an unescaped, provider-dependent DN string. Analysis Openfire’s SASL EXTERNAL...

Inspecting TLS Web Traffic - Part 2

In the first blog post I covered why HTTPS web traffic has grown to unprecedented levels, provided a TLS primer and looked at the basic concept of intercepting and inspecting HTTPS web traffic with Man-In-The-Middle techniques MITM. In the second part, I will dive a bit deeper into how the TLS MI...

NordVPN Breached

There was a successful attack against NordVPN: Based on the command log, another of the leaked secret keys appeared to secure a private certificate authority that NordVPN used to issue digital certificates. Those certificates might be issued for other servers in NordVPN's network or for a variety...