CVE-2026-51259

Rejected reason: DO NOT USE THIS CVE RECORD. ConsultIDs: none. Reason: This record was withdrawn by its CNA. Further investigation showed that it was not a security issue. Notes: none...

OPENSUSE-SU-2026:21474-1 Security update for s2n

This update for s2n fixes the following issues: Changes in s2n: - CVE-2026-16318: Denial of Service due to memory leak in QUIC transport parameters handler bsc1272352 - CVE-2026-16317: man-in-the-middle attack can silently discard individual application data records...

postgresql: PostgreSQL libpq: Buffer overflow allows server superuser to overwrite client stack memory

A flaw was found in PostgreSQL libpq. A server superuser can exploit a buffer overflow vulnerability in the PQfn function, which is used by client functions such as loexport, loread, lolseek64, and lotell64. This allows the superuser to send an arbitrarily large response, overwriting the client's...

CVE-2026-66011

A flaw was found in ImageMagick. This memory leak vulnerability occurs when invalid options are provided to the magick command-line interface CLI. An attacker can exploit this by repeatedly supplying malformed command-line arguments, leading to memory exhaustion and a denial of service DoS on the...

Fixed in Apache Tomcat 11.0.25

Low: DoS in WebSocket chat example CVE-2026-66299 The WebSocket chat example provided an unbounded buffer for undelivered messages. A maliciously slow client could cause the buffer to grow continuously, eventually leading to an memory exhaustion and failure of the Tomcat process. This was fixed...

Fixed in Apache Tomcat 10.1.58

Low: DoS in WebSocket chat example CVE-2026-66299 The WebSocket chat example provided an unbounded buffer for undelivered messages. A maliciously slow client could cause the buffer to grow continuously, eventually leading to an memory exhaustion and failure of the Tomcat process. This was fixed...

Fixed in Apache Tomcat 9.0.121

Low: DoS in WebSocket chat example CVE-2026-66299 The WebSocket chat example provided an unbounded buffer for undelivered messages. A maliciously slow client could cause the buffer to grow continuously, eventually leading to an memory exhaustion and failure of the Tomcat process. This was fixed...

CVE-2026-55990

A flaw was found in Unbound when configured with DNSCrypt support. An unauthenticated remote attacker could exploit a faulty configuration, where an imbalance between DNSCrypt provider certificate and secret key files leads to memory corruption. By sending a specially crafted network request, the...

CVE-2026-59248

A flaw was found in cowlib, an HTTP parser. An unauthenticated remote attacker could exploit this vulnerability by sending specially crafted HTTP/2 or HTTP/3 frames containing oversized HPACK or QPACK prefixed integers. This unbounded decoding process leads to excessive memory allocation and...

CVE-2026-64646

A flaw was found in Next.js. An attacker sending specially crafted requests to a Next.js application utilizing the App Router with Server Actions configured to use the Edge runtime can cause excessive memory consumption. This can lead to a denial of service DoS due to resource exhaustion...

CVE-2026-66913

Lookyloo did not enforce limits on the decompressed size of uploaded capture archives and compressed HAR files. An attacker could submit a specially crafted ZIP, gzip, or zlib-compressed capture containing data that expands to a very large size during processing. Because the application...

CVE-2026-62434

A guest started with Populated on Demand enabled PoD can attempt to reclaim pages which aren't regular guest RAM. This can cause corruption of memory management state in Xen...

CVE-2026-62430

Accesses to the CMOS memory contents are done using an indirect IO port pair. Therefore Xen needs to cache the guest chosen index, and one of the usages of the index didn't take the necessary locking to avoid concurrent changes. As a result, a guest could change the index after it being checked,...

UBUNTU-CVE-2026-62429

Accessing the vNUMA configuration data of a guest is still possible when domain destruction has already started. The cleaning up of that configuration information is not synchronized with its retrieval by a device model controlling the guest...

UBUNTU-CVE-2026-62430

Accesses to the CMOS memory contents are done using an indirect IO port pair. Therefore Xen needs to cache the guest chosen index, and one of the usages of the index didn't take the necessary locking to avoid concurrent changes. As a result, a guest could change the index after it being checked,...

CVE-2026-42493

Addressing certain issues, in particular related to operations which may take excessively long and therefore would need preemption, has turned out overly costly. Since alternatives HVM/PVH: HAP, PV: shim are commonly available, the decision was to deprecate the functionality, while still retainin...

CVE-2026-42493

Addressing certain issues, in particular related to operations which may take excessively long and therefore would need preemption, has turned out overly costly. Since alternatives HVM/PVH: HAP, PV: shim are commonly available, the decision was to deprecate the functionality, while still retainin...

kernel: futex: Drop CLONE_THREAD requirement for private default hash alloc

A flaw was found in the Linux kernel's futex subsystem. The needfutexhashallocatedefault function incorrectly relies on CLONETHREAD semantics, which can lead to non-concurrency issues when memory allocations mm-futexref pcpu allocations are shared across CLONEVM clones, excluding vfork. This can...

CVE-2026-13873

An out of bounds memory access flaw was found in the Layout component of the Chromium browser. Upstream bugs: https://code.google.com/p/chromium/issues/detail?id=498085466...

CVE-2026-57220

A flaw was found in RabbitMQ. The stream listener in RabbitMQ does not properly enforce frame-size limits during authentication and before negotiation. This allows an unauthenticated remote client to send oversized stream frames, which can consume excessive broker memory. This can lead to a denia...