unbound: Unbound: Denial of Service via crafted DNS-over-QUIC connection

A flaw was found in Unbound. A remote, unauthenticated client can exploit this vulnerability by sending a specially crafted DNS-over-QUIC DoQ connection and a single DNS query. This can trigger an assertion failure in the libngtcp2 library, leading to the termination of the entire Unbound process...

CVE-2026-55991

CVE-2026-55991 affects NLnet Labs Unbound 1.22.0–1.25.1. A remote unauthenticated DoQ client can trigger a libngtcp2 assertion by passing an erroneous error value when ngtcp2_conn_writev_stream() returns NGTCP2_ERR_STREAM_DATA_BLOCKED and Unbound calls ngtcp2_ccerr_set_application_error() with -1...

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...

JLSEC-2026-763

In iperf before 3.19.1, iperfauth.c has a Base64Decode assertion failure and application exit upon a malformed authentication attempt...

K000162281: BIND vulnerabilities CVE-2026-3039 and CVE-2026-5946

Security Advisory Description CVE-2026-3039 BIND servers that are configured to use TKEY-based authentication via GSS-API tokens are vulnerable to excessive memory consumption when receiving and processing maliciously-constructed packets. Typically these servers will be found in Active Directory...

PYSEC-2026-3210 TensorFlow vulnerable to assertion fail on MLIR empty edge names

Impact When mlir::tfg::ConvertGenericFunctionToFunctionDef is given empty function attributes, it crashes. cpp // We pre-allocate the array of operands and populate it using the // outputnametoposition and controloutputtoposition populated // previously. SmallVector retvalsfunc.retsize +...

CVE-2026-55514

A flaw was found in vLLM, a library for Large Language Model LLM inference and serving. A remote attacker, authorized to make a /v1/completions request, can send a specially crafted prompt embeds payload. This action causes the EngineCore to fail an assertion and fatally crash, leading to a Denia...

PYSEC-2026-1015 TensorFlow vulnerable to assertion fail on MLIR empty edge names

Impact When mlir::tfg::ConvertGenericFunctionToFunctionDef is given empty function attributes, it crashes. cpp // We pre-allocate the array of operands and populate it using the // outputnametoposition and controloutputtoposition populated // previously. SmallVector retvalsfunc.retsize +...

Security Bulletin: Vulnerability in BIND (CVE-2026-3592, CVE-2026-5946) affects AIX/ VIOS.

Summary CVE-2026-3592: Resolver queries a specially crafted zone containing self-pointed glue records, causing disproportionate resource consumption. CVE-2026-5946: Specially crafted DNS messages using non-IN classes e.g., CHAOS, HESIOD, ANY, NONE trigger assertion failures, terminating the named...

PYSEC-2026-703 Reachable Assertion in OpenCV.

In OpenCV 3.3.1 corresponds with OpenCV-Python 3.3.1.11, an assertion failure happens in cv::RBaseStream::setPos in modules/imgcodecs/src/bitstrm.cpp because of an incorrect integer cast...

CVE-2026-52954

A flaw was found in the Linux kernel's libceph component. A remote attacker could send a specially crafted CEPHMSGOSDMAP message containing a corrupted CRUSH map. If this map includes two crushchooseargmaps with identical indices, it triggers an assertion failure, leading to a kernel bug and a...

nghttp2: nghttp2: Denial of Service via malformed HTTP/2 frames after session termination

A flaw was found in nghttp2. Due to missing internal state validation, the library continues to process incoming data even after a session has been terminated. A remote attacker could exploit this by sending a specially crafted HTTP/2 frame, leading to an assertion failure and a denial of service...

nghttp2: nghttp2: Denial of Service via malformed HTTP/2 frames after session termination

A flaw was found in nghttp2. Due to missing internal state validation, the library continues to process incoming data even after a session has been terminated. A remote attacker could exploit this by sending a specially crafted HTTP/2 frame, leading to an assertion failure and a denial of service...

kernel: xfs: fix freemap adjustments when adding xattrs to leaf blocks

A flaw was found in the Linux kernel's XFS filesystem. When adding extended attributes xattrs, which are metadata associated with files, to leaf blocks, incorrect adjustments to the freemap can occur. This inconsistency allows the entries array and free space to overlap, leading to an assertion...

kernel: xfs: fix freemap adjustments when adding xattrs to leaf blocks

A flaw was found in the Linux kernel's XFS filesystem. When adding extended attributes xattrs, which are metadata associated with files, to leaf blocks, incorrect adjustments to the freemap can occur. This inconsistency allows the entries array and free space to overlap, leading to an assertion...

Security update for glibc

This update for glibc fixes the following issues CVE-2026-4046: assertion failure when converting inputs may be used to remotely crash an application bsc1261206. CVE-2026-5450: stdio-common: scanf %mc pattern will cause heap overflow when width 1024 bsc1262465. CVE-2026-5928: libio: ungetwc could...

SUSE-SU-2026:2333-1 Security update for glibc

This update for glibc fixes the following issues - CVE-2026-4046: assertion failure when converting inputs may be used to remotely crash an application bsc1261206. - CVE-2026-5450: stdio-common: scanf %mc pattern will cause heap overflow when width 1024 bsc1262465. - CVE-2026-5928: libio: ungetwc...

EulerOS 2.0 SP13 : nghttp2 (EulerOS-SA-2026-2303)

According to the versions of the nghttp2 package installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : nghttp2 is an implementation of the Hypertext Transfer Protocol version 2 in C. Prior to version 1.68.1, the nghttp2 library stops reading the...

CVE-2026-35058

Improper validation of packet length during tls-crypt-v2 key extraction in OpenVPN 2.6.0 through 2.6.19 and 2.7alpha1 through 2.7.1 allows authenticated attackers to trigger a fatal assertion and cause a denial of service via a specially crafted packet...