OPENSUSE-SU-2026:21370-1 Security update for gstreamer-plugins-bad

This update for gstreamer-plugins-bad fixes the following issues - CVE-2026-12891: unchecked aspectratioidc value used as an array index in the H.266 parser could cause a global out- of-bounds read bsc1268872. - CVE-2026-12892: 1-byte heap out-of-bounds read in H.264 NAL extension slice parser...

OpenSSL HollowByte Flaw Could Freeze Server Memory with 11-Byte TLS Requests

Eleven bytes will make an unpatched OpenSSL server set aside up to 131 KB of memory for a message that never arrives. On the glibc systems Okta tested, that memory is gone until the process restarts. OpenSSL shipped the HollowByte fix in June with no CVE, no advisory, and no changelog entry...

CVE-2026-44435

Quicly is an IETF QUIC protocol implementation intended primarily for use within the H2O HTTP server. Prior to commit 937d0e9, an assertion failure is raised when the total number of valid handshake messages received over a CRYPTO stream of a single packet number space exceeds 32KB, causing a...

EUVD-2026-45071

Quicly is an IETF QUIC protocol implementation intended primarily for use within the H2O HTTP server. Prior to commit 937d0e9, an assertion failure is raised when the total number of valid handshake messages received over a CRYPTO stream of a single packet number space exceeds 32KB, causing a...

CVE-2026-44435

Quicly is an IETF QUIC protocol implementation intended primarily for use within the H2O HTTP server. Prior to commit 937d0e9, an assertion failure is raised when the total number of valid handshake messages received over a CRYPTO stream of a single packet number space exceeds 32KB, causing a...

CVE-2026-44435 Quicly: Remote Denial of Service via assertion failure when CRYPTO stream handshake data exceeds 32KB

Quicly is an IETF QUIC protocol implementation intended primarily for use within the H2O HTTP server. Prior to commit 937d0e9, an assertion failure is raised when the total number of valid handshake messages received over a CRYPTO stream of a single packet number space exceeds 32KB, causing a...

CVE-2026-44435 Quicly: Remote Denial of Service via assertion failure when CRYPTO stream handshake data exceeds 32KB

Quicly is an IETF QUIC protocol implementation intended primarily for use within the H2O HTTP server. Prior to commit 937d0e9, an assertion failure is raised when the total number of valid handshake messages received over a CRYPTO stream of a single packet number space exceeds 32KB, causing a...

CVE-2026-44435

CVE-2026-44435 : Quicly (QUIC protocol implementation used with H2O) contains an assertion failure that triggers a Denial of Service when the total number of valid handshake messages over a CRYPTO stream within a single packet number space exceeds 32KB. The issue is fixed by commit 937d0e9. Affec...

CVE-2026-44435 Quicly: Remote Denial of Service via assertion failure when CRYPTO stream handshake data exceeds 32KB

Quicly is an IETF QUIC protocol implementation intended primarily for use within the H2O HTTP server. Prior to commit 937d0e9, an assertion failure is raised when the total number of valid handshake messages received over a CRYPTO stream of a single packet number space exceeds 32KB, causing a...

EUVD-2026-45070

Quicly is an IETF QUIC protocol implementation intended primarily for use within the H2O HTTP server. Prior to commit dccf5d4, Quicly was vulnerable to stateless reset injection through lack of packet entry validation. The QUIC protocol is designed to withstand packet injection attacks, once the...

PT-2026-60601

Name of the Vulnerable Software and Affected Versions Quicly versions prior to commit 937d0e9 Description An assertion failure occurs when the total number of valid handshake messages received over a CRYPTO stream of a single packet number space exceeds 32KB. This leads to a Denial of Service,...

Ubuntu 22.04 LTS / 24.04 LTS / 26.04 LTS : .NET vulnerabilities (USN-8553-1)

The remote Ubuntu 22.04 LTS / 24.04 LTS / 26.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-8553-1 advisory. Artur Stetsko discovered that the .NET did not properly validate authentication data. An attacker could possibly use this issue t...

CVE-2026-59950 MCP Python SDK: WebSocket server transport does not support Host/Origin validation

The MCP Python SDK, called mcp on PyPI, is a Python implementation of the Model Context Protocol MCP. Prior to 1.28.1, the deprecated mcp.server.websocket.websocketserver transport accepted WebSocket handshakes without applying Host or Origin header validation, leaving no SDK-level way to restric...

Improper Validation of Specified Type of Input

Overview Affected versions of this package are vulnerable to Improper Validation of Specified Type of Input via TLS handshake processing. An attacker can cause a denial of service by sending malformed TLS handshake messages that trigger excessive resource consumption or cause the application to...

Improper Validation of Specified Type of Input

Overview Affected versions of this package are vulnerable to Improper Validation of Specified Type of Input via TLS handshake processing. An attacker can cause a denial of service by sending malformed TLS handshake messages that trigger excessive resource consumption or cause the application to...

Improper Validation of Specified Type of Input

Overview Affected versions of this package are vulnerable to Improper Validation of Specified Type of Input via TLS handshake processing. An attacker can cause a denial of service by sending malformed TLS handshake messages that trigger excessive resource consumption or cause the application to...

Improper Validation of Specified Type of Input

Overview Affected versions of this package are vulnerable to Improper Validation of Specified Type of Input via TLS handshake processing. An attacker can cause a denial of service by sending malformed TLS handshake messages that trigger excessive resource consumption or cause the application to...

Improper Validation of Specified Type of Input

Overview Affected versions of this package are vulnerable to Improper Validation of Specified Type of Input via TLS handshake processing. An attacker can cause a denial of service by sending malformed TLS handshake messages that trigger excessive resource consumption or cause the application to...

Improper Validation of Specified Type of Input

Overview Affected versions of this package are vulnerable to Improper Validation of Specified Type of Input via TLS handshake processing. An attacker can cause a denial of service by sending malformed TLS handshake messages that trigger excessive resource consumption or cause the application to...

Improper Validation of Specified Type of Input

Overview Affected versions of this package are vulnerable to Improper Validation of Specified Type of Input via TLS handshake processing. An attacker can cause a denial of service by sending malformed TLS handshake messages that trigger excessive resource consumption or cause the application to...