CVE-2026-48044 Envoy Zstd Decompressor: Ratio Check at Wrong Loop Depth lead to memory explosion

Envoy is an open source edge and service proxy designed for cloud-native applications. From 1.23.0 until 1.35.11, 1.36.7, 1.37.3, and 1.38.1, a vulnerability has been identified in Envoy's zstd decompressor implementation ZstdDecompressorImpl. When zstd decompression is enabled, processing a...

CVE-2026-48044

Envoy is an open source edge and service proxy designed for cloud-native applications. From 1.23.0 until 1.35.11, 1.36.7, 1.37.3, and 1.38.1, a vulnerability has been identified in Envoy's zstd decompressor implementation ZstdDecompressorImpl. When zstd decompression is enabled, processing a...

CVE-2026-48044 Envoy Zstd Decompressor: Ratio Check at Wrong Loop Depth lead to memory explosion

Envoy is an open source edge and service proxy designed for cloud-native applications. From 1.23.0 until 1.35.11, 1.36.7, 1.37.3, and 1.38.1, a vulnerability has been identified in Envoy's zstd decompressor implementation ZstdDecompressorImpl. When zstd decompression is enabled, processing a...

CVE-2026-48044 Envoy Zstd Decompressor: Ratio Check at Wrong Loop Depth lead to memory explosion

Envoy is an open source edge and service proxy designed for cloud-native applications. From 1.23.0 until 1.35.11, 1.36.7, 1.37.3, and 1.38.1, a vulnerability has been identified in Envoy's zstd decompressor implementation ZstdDecompressorImpl. When zstd decompression is enabled, processing a...

CVE-2026-48044

Summary: CVE-2026-48044 affects Envoy’s zstd decompressor (ZstdDecompressorImpl). From 1.23.0 through 1.35.11, 1.36.7, 1.37.3, and 1.38.1, specially crafted, highly compressed zstd payloads can trigger massive memory allocation when decompression is enabled, potentially causing memory exhaustion ...

EUVD-2026-39820

Envoy is an open source edge and service proxy designed for cloud-native applications. From 1.23.0 until 1.35.11, 1.36.7, 1.37.3, and 1.38.1, a vulnerability has been identified in Envoy's zstd decompressor implementation ZstdDecompressorImpl. When zstd decompression is enabled, processing a...

Important: Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update

An update for Red Hat Hardened Images RPMs is now available. This update includes the following RPMs: python-urllib3: python3-urllib3+brotli-2.7.0-3.hum1 noarch python3-urllib3+h2-2.7.0-3.hum1 noarch python3-urllib3+socks-2.7.0-3.hum1 noarch python3-urllib3+zstd-2.7.0-3.hum1 noarch...

PT-2026-48688

Name of the Vulnerable Software and Affected Versions netty-codec-http2 versions prior to 4.1.135.Final netty-codec-http2 versions prior to 4.2.15.Final Description The DelegatingDecompressorFrameListener class manages HTTP/2 decompression by using a per-stream EmbeddedChannel to run decompressio...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: crypto: zstd – fix double-free in per-CPU stream cleanup The crypto/zstd module contains a double-free bug that occurs when multiple tfms are allocated and freed. The issue arises because the zstdstreams per-CPU contexts are free...

PT-2026-43208

It was discovered that dpkg-deb a component of dpkg, the Debian package management system does not properly validate the end of the data stream when uncompressing a zstd-compressed .deb archive, which may result in denial of service infinite loop spinning the CPU...

WS-2019-0534

The zstd in versions v0.4.3 to v1.4.2 is vulnerable to Stack-buffer-overflow in ZSTDdecodeLiteralsBlock , related to lib/legacy/zstdv03.c...

DEBIAN-CVE-2026-42587

Netty is an asynchronous, event-driven network application framework. Prior to 4.2.13.Final and 4.1.133.Final, HttpContentDecompressor accepts a maxAllocation parameter to limit decompression buffer size and prevent decompression bomb attacks. This limit is correctly enforced for gzip and deflate...

CVE-2026-42587

Netty is an asynchronous, event-driven network application framework. Prior to 4.2.13.Final and 4.1.133.Final, HttpContentDecompressor accepts a maxAllocation parameter to limit decompression buffer size and prevent decompression bomb attacks. This limit is correctly enforced for gzip and deflate...

CVE-2026-42587

Netty CVE-2026-42587 affects HttpContentDecompressor and DelegatingDecompressorFrameListener. Before 4.2.13.Final and 4.1.133.Final, maxAllocation is enforced for gzip/deflate but ignored for br, zstd, or snappy, allowing an attacker to bypass the decompression limit via Content-Encoding: br and ...

CVE-2026-42587: Uncontrolled Resource Consumption

Netty is an asynchronous, event-driven network application framework. Prior to 4.2.13.Final and 4.1.133.Final, HttpContentDecompressor accepts a maxAllocation parameter to limit decompression buffer size and prevent decompression bomb attacks. This limit is correctly enforced for gzip and deflate...

PT-2026-39177

Yashashree Gund discovered that the dpkg dpkg-deb tool incorrectly handled certain zstd-compressed .deb archives. If a user or automated system were tricked into manipulating a specially crafted .deb archive, a remote attacker could possibly use this issue to cause dpkg-deb to stop responding,...

c-blosc2:decompress_chunk_fuzzer: Heap-buffer-overflow in ZSTDv05_decompressBegin_usingDict

Detailed Report: https://oss-fuzz.com/testcase?key=4684225239646208 Project: c-blosc2 Fuzzing Engine: libFuzzer Fuzz Target: decompresschunkfuzzer Job Type: libfuzzerasani386c-blosc2 Platform Id: linux Crash Type: Heap-buffer-overflow READ 4 Crash Address: 0xf5600673 Crash State:...

Linux Distros Unpatched Vulnerability : CVE-2024-14031

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Sereal::Encoder versions from 4.000 through 4.009002 for Perl embeds a vulnerable version of the Zstandard library. Sereal::Encoder embeds a version of the...

[SECURITY] Fedora 42 Update: python-fastar-0.8.0-4.fc42

The fastar library wraps the Rust tar, flate2, and zstd crates, providing a high-performance way to work with compressed and uncompressed tar archives in Python...

[SECURITY] Fedora 44 Update: python-fastar-0.9.0-2.fc44

The fastar library wraps the Rust tar, flate2, and zstd crates, providing a high-performance way to work with compressed and uncompressed tar archives in Python...