Autobahn Python permessage-deflate bypasses maxMessagePayloadSize after inflation

Summary Autobahn Python enforces maxMessagePayloadSize against the compressed WebSocket frame length before permessage-deflate inflation, then delivers the inflated message to application callbacks without a second size check. A client frame that is only 22 compressed bytes can inflate to 4096...

GHSA-HXP9-W8X3-P566 Autobahn Python permessage-deflate bypasses maxMessagePayloadSize after inflation

Summary Autobahn Python enforces maxMessagePayloadSize against the compressed WebSocket frame length before permessage-deflate inflation, then delivers the inflated message to application callbacks without a second size check. A client frame that is only 22 compressed bytes can inflate to 4096...

Node.js 22.x < 22.23.2 / 24.x < 24.18.1 / 26.x < 26.5.1 Multiple Vulnerabilities (Wednesday, July 29, 2026 Security Releases)

The version of Node.js used within the Brocade SANnav is not affected, but does contain the vulnerable code for the following vulnerabilities as referenced in the Wednesday, July 29, 2026 Security Releases advisory. A flaw in Node.js allows a spoofed TypedArray byteLength to trigger a reachable...

Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: mysql (UTSA-2023-001571)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2023-001571 advisory. zlib through 1.2.12 has a heap-based buffer over-read or buffer overflow in inflate in inflate.c via a large gzip header extra field. NOTE: only applications that ca...

CVE-2026-77021

Improper handling of highly compressed data data amplification in Checkmk 2.5.0p14, 2.4.0p37, 2.3.0p51 and 2.2.0 EOL allows an attacker who controls a host registered for push mode to exhaust the memory of the agent receiver by sending a small zlib compressed payload that decompresses to an...

CVE-2026-77021

Checkmk versions prior to 2.5.0p14 , 2.4.0p37 , and 2.3.0p51 , as well as the EOL 2.2.0 release, are affected by a data amplification vulnerability in the agent receiver. The root cause is a missing decompression size limit on zlib-compressed data sent by hosts registered in push mode. An attacke...

CVE-2026-77021 Missing decompression size limit in agent receiver allows memory exhaustion via push agent data

Improper handling of highly compressed data data amplification in Checkmk 2.5.0p14, 2.4.0p37, 2.3.0p51 and 2.2.0 EOL allows an attacker who controls a host registered for push mode to exhaust the memory of the agent receiver by sending a small zlib compressed payload that decompresses to an...

EUVD-2026-83883

Improper handling of highly compressed data data amplification in Checkmk 2.5.0p14, 2.4.0p37, 2.3.0p51 and 2.2.0 EOL allows an attacker who controls a host registered for push mode to exhaust the memory of the agent receiver by sending a small zlib compressed payload that decompresses to an...

CVE-2026-77021 Missing decompression size limit in agent receiver allows memory exhaustion via push agent data

Improper handling of highly compressed data data amplification in Checkmk 2.5.0p14, 2.4.0p37, 2.3.0p51 and 2.2.0 EOL allows an attacker who controls a host registered for push mode to exhaust the memory of the agent receiver by sending a small zlib compressed payload that decompresses to an...

CVE-2026-47321

The CompressionFilter class uses ZLib to deflate and inflate data sent and received. When we inflate incoming data, the filter does not control the resulting size, and create a buffer no matter what. Some compressed data may have a compression ration greater than 1 thousand, leading to an...

EUVD-2026-83858

The CompressionFilter class uses ZLib to deflate and inflate data sent and received. When we inflate incoming data, the filter does not control the resulting size, and create a buffer no matter what. Some compressed data may have a compression ration greater than 1 thousand, leading to an...

CVE-2026-47321: Improper Handling of Highly Compressed Data (Data Amplification)

The CompressionFilter class uses ZLib to deflate and inflate data sent and received. When we inflate incoming data, the filter does not control the resulting size, and create a buffer no matter what. Some compressed data may have a compression ration greater than 1 thousand, leading to an...

CVE-2026-77021: Improper Handling of Highly Compressed Data (Data Amplification)

Improper handling of highly compressed data data amplification in Checkmk 2.5.0p14, 2.4.0p37, 2.3.0p51 and 2.2.0 EOL allows an attacker who controls a host registered for push mode to exhaust the memory of the agent receiver by sending a small zlib compressed payload that decompresses to an...

PT-2026-96071

Name of the Vulnerable Software and Affected Versions Checkmk versions prior to 2.5.0p14 Checkmk versions prior to 2.4.0p37 Checkmk versions prior to 2.3.0p51 Checkmk version 2.2.0 Description Improper handling of highly compressed data, known as data amplification, allows an attacker controlling...

CVE-2026-84384 libheif: brotli/zlib decompression paths lack output-size limits, allowing decompression-bomb OOM/DoS

libheif is a HEIF and AVIF file format decoder and encoder. From 1.19.0 until 1.23.2, crafted HEIF or AVIF mime metadata and unci image data can cause decompressbrotli and doinflate to grow accumulated output without an effective size limit or MemoryHandle accounting. The brotli path has no outpu...

CVE-2026-84384 libheif: brotli/zlib decompression paths lack output-size limits, allowing decompression-bomb OOM/DoS

libheif is a HEIF and AVIF file format decoder and encoder. From 1.19.0 until 1.23.2, crafted HEIF or AVIF mime metadata and unci image data can cause decompressbrotli and doinflate to grow accumulated output without an effective size limit or MemoryHandle accounting. The brotli path has no outpu...

CLEANSTART-2026-ID64471 Security fix for CVE-2018-25032 applied in: zlib 1.2.11-r4

Security vulnerability affects the zlib package. This issue is resolved in later releases. See references for vulnerability details...

CLEANSTART-2026-DU98063 Security fix for CVE-2022-37434 applied in: zlib 1.2.12-r2

Security vulnerability affects the zlib package. This issue is resolved in later releases. See references for vulnerability details...

EulerOS Virtualization 2.11.0 : zlib (EulerOS-SA-2026-3571)

According to the versions of the zlib packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities : zlib before 1.3.2 allows CPU consumption via crc32combine64 and crc32combinegen64 because x2nmodp can do right shifts within a loop...

EulerOS Virtualization 2.11.1 : zlib (EulerOS-SA-2026-3483)

According to the versions of the zlib packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities : zlib before 1.3.2 allows CPU consumption via crc32combine64 and crc32combinegen64 because x2nmodp can do right shifts within a loop...