OpenVPN -- server DOS and data leak in TLS handshake vulnerabilities

Gert Doering reports: Security fixes in 2.7.2 fix race condition in TLS handshake that could lead to leaking of packet data from a previous handshake under specific circumstances CVE-2026-40215 fix server termination on receiving a suitably malformed packet with a valid tls-crypt-v2 key...

SUSE CVE-2026-40170

ngtcp2 is a C implementation of the IETF QUIC protocol. In versions prior to 1.22.1, ngtcp2qlogparameterssettransportparams serializes peer transport parameters into a fixed 1024-byte stack buffer without bounds checking. When qlog is enabled, a remote peer can send sufficiently large transport...

Microsoft Visual Studio Products (April 2026)

The Microsoft Visual Studio Products are missing a security update. It is, therefore, affected by a denial of service vulnerability: - 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...

CVE-2026-40170 ngtcp2 has a qlog transport parameter serialization stack buffer overflow

ngtcp2 is a C implementation of the IETF QUIC protocol. In versions prior to 1.22.1, ngtcp2qlogparameterssettransportparams serializes peer transport parameters into a fixed 1024-byte stack buffer without bounds checking. When qlog is enabled, a remote peer can send sufficiently large transport...

CVE-2026-40170

ngtcp2 is a C implementation of the IETF QUIC protocol. In versions prior to 1.22.1, ngtcp2qlogparameterssettransportparams serializes peer transport parameters into a fixed 1024-byte stack buffer without bounds checking. When qlog is enabled, a remote peer can send sufficiently large transport...

NGINX: NGINX: Certificate revocation bypass when OCSP is enabled

A flaw was found in NGINX, specifically within its ngxstreamsslmodule. When NGINX is configured to verify client certificates and use the Online Certificate Status Protocol OCSP for revocation checks, it fails to properly enforce the revocation status. This allows a Transport Layer Security TLS...

CVE-2026-6328 XQUIC Improper STREAM Frame Validation in Initial/Handshake Packets

Improper input validation, Improper verification of cryptographic signature vulnerability in XQUIC Project XQUIC xquic on Linux QUIC protocol implementation, packet processing module, STREAM frame handler modules allows Protocol Manipulation.This issue affects XQUIC: through 1.8.3...

CVE-2026-6328 XQUIC Improper STREAM Frame Validation in Initial/Handshake Packets

Improper input validation, Improper verification of cryptographic signature vulnerability in XQUIC Project XQUIC xquic on Linux QUIC protocol implementation, packet processing module, STREAM frame handler modules allows Protocol Manipulation.This issue affects XQUIC: through 1.8.3...

CVE-2026-6328

CVE-2026-6328 concerns XQUIC’s Linux QUIC implementation (project XQUIC, xquic) where the STREAM frame handler modules suffer from improper input validation and improper verification of a cryptographic signature, enabling protocol manipulation. Affected version: XQUIC up to and including 1.8.3. I...

CVE-2026-6328 XQUIC Improper STREAM Frame Validation in Initial/Handshake Packets

Improper input validation, Improper verification of cryptographic signature vulnerability in XQUIC Project XQUIC xquic on Linux QUIC protocol implementation, packet processing module, STREAM frame handler modules allows Protocol Manipulation.This issue affects XQUIC: through 1.8.3...

CLEANSTART-2026-MP87020 If one side of the TLS connection sends multiple key update messages post-handshake in a single record, the connection can deadlock, causing uncontrolled consumption of resources

Multiple security vulnerabilities affect the karpenter package. If one side of the TLS connection sends multiple key update messages post-handshake in a single record, the connection can deadlock, causing uncontrolled consumption of resources. See references for individual vulnerability details...

SUSE SLED15 / SLES15 Security Update : go1.25 (SUSE-SU-2026:1321-1)

The remote SUSE Linux SLED15 / SLEDSAP15 / SLES15 / SLESSAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:1321-1 advisory. - Update to go1.25.9 bsc1244485. - CVE-2026-27140: cmd/go: trust layer bypass when using cgo and SWIG...

Security Bulletin: IBM Watson Speech Services Cartridge is vulnerable to an information disclosure in Golang Go - crypto/tls (CVE-2025-61730)

Summary IBM Watson Speech Services Cartridge is vulnerable to an information disclosure in Golang Go - crypto/tls, where encryption levels fail to change after multiple messages during TLS 1.3 handshakes CVE-2025-61730. Golang Go - crypto/tls is used in our speech-utilities. This vulnerabilitiy h...

OPENSUSE-SU-2026:20581-1 Security update for nebula

This update for nebula fixes the following issues: Changes in nebula: - Update to version 1.10.3: Fix an issue where blocklist bypass is possible when using curve P256 Any newly issued P256 based certificates will have their signature clamped to the low-s form. Nebula will assert the low-s...

Security update for go1.25

This update for go1.25 fixes the following issues: Update to go1.25.9 bsc1244485. CVE-2026-27140: cmd/go: trust layer bypass when using cgo and SWIG bsc1261653. CVE-2026-27143: cmd/compile: possible memory corruption after bound check elimination bsc1261654. CVE-2026-27144: cmd/compile: no-op...

SUSE-SU-2026:1321-1 Security update for go1.25

This update for go1.25 fixes the following issues: - Update to go1.25.9 bsc1244485. - CVE-2026-27140: cmd/go: trust layer bypass when using cgo and SWIG bsc1261653. - CVE-2026-27143: cmd/compile: possible memory corruption after bound check elimination bsc1261654. - CVE-2026-27144: cmd/compile:...

SUSE-SU-2026:1320-1 Security update for go1.26

This update for go1.26 fixes the following issues: - Update to go1.26.2 bsc1255111. - CVE-2026-27140: cmd/go: trust layer bypass when using cgo and SWIG bsc1261653. - CVE-2026-27143: cmd/compile: possible memory corruption after bound check elimination bsc1261654. - CVE-2026-27144: cmd/compile:...

BIT-GOLANG-2026-32283 Unauthenticated TLS 1.3 KeyUpdate record can cause persistent connection retention and DoS in crypto/tls

If one side of the TLS connection sends multiple key update messages post-handshake in a single record, the connection can deadlock, causing uncontrolled consumption of resources. This can lead to a denial of service. This only affects TLS 1.3...

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...