CVE-2026-34580

Botan is a C++ cryptography library. In 3.11.0, the function CertificateStore::certificateknown had a misleading name; it would return true if any certificate in the store had a DN and subject key identifier, if set matching that of the argument. It did not check that the cert it found and the ce...

CVE-2025-66220

A flaw was found in Envoy. This vulnerability allows mTLS mutual Transport Layer Security certificate validation bypass via a certificate containing an embedded null byte \0 inside an OTHERNAME SAN Subject Alternative Name value. Mitigation Mitigation for this issue is either not available or the...

CVE-2025-66220 Envoy’s TLS certificate matcher for `match_typed_subject_alt_names` may incorrectly treat certificates containing an embedded null byte

Envoy is a high-performance edge/middle/service proxy. In 1.33.12, 1.34.10, 1.35.6, 1.36.2, and earlier, Envoy’s mTLS certificate matcher for matchtypedsubjectaltnames may incorrectly treat certificates containing an embedded null byte \0 inside an OTHERNAME SAN value as valid matches...

Spotting brand impersonation with Swin transformers and Siamese neural networks

Every day, Microsoft Defender for Office 365 encounters millions of brand impersonation emails. Our security solutions use multiple detection and prevention techniques to help users avoid divulging sensitive information to phishers as attackers continue refining their impersonation tricks. In thi...

Botan Design Vulnerability (CNVD-2018-08488)

Botan is a library of cryptographic algorithms in the C++ programming language that supports AES, DES, SHA-1, RSA, DSA and Diffie-Hellman. A security vulnerability exists in Botan versions 2.2.0 through 2.4.0, which stems from the program failing to properly match wildcard certificates. An attack...

subversion -- several vulnerabilities

Subversion Project reports: Using the Serf RA layer of Subversion for HTTPS uses the aprfnmatch API to handle matching wildcards in certificate Common Names and Subject Alternate Names. However, aprfnmatch is not designed for this purpose. Instead it is designed to behave like common shell...