CVE-2026-83599: Improper Handling of Highly Compressed Data (Data Amplification)

Netdata is an open source observability tool. Prior to 2.11.0, Netdata's unauthenticated WebSocket server negotiates permessage-deflate before authentication, and src/web/websocket/websocket-compression.c allows websocketclientdecompressmessage to grow decompressed output toward...

CVE-2026-77620: Improper Handling of Highly Compressed Data (Data Amplification)

Vector is a high-performance observability data pipeline. From 0.15.0 until 0.57.0, the logstash source feeds each decompressed frame back into its decoder without limiting nested compression depth. An unauthenticated remote peer that can reach the default 0.0.0.0:5044 listener can send many nest...

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...

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-2026-77021

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...

Improper Handling of Highly Compressed Data (Data Amplification)

Overview org.apache.mina:mina-core is a network application framework which helps users develop high performance and high scalability network applications easily. Affected versions of this package are vulnerable to Improper Handling of Highly Compressed Data Data Amplification in the...

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...

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...

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...

Data Amplification

Overview org.jboss.resteasy:resteasy-core is a JBoss.org project aimed at providing productivity frameworks for developing client and server RESTful applications and services in Java. Affected versions of this package are vulnerable to Data Amplification in the readFrom method of IIOImageProvider...

CVE-2026-84384: Improper Handling of Highly Compressed Data (Data Amplification)

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-2026-89059: Improper Handling of Highly Compressed Data (Data Amplification)

A flaw was found in RESTEasy's IIOImageProvider, which decodes attacker-supplied image request bodies without enforcing any limit on the declared image dimensions or pixel count. A remote, unauthenticated attacker can send a small crafted image declaring enormous dimensions to trigger a very larg...

CVE-2026-77528: Improper Handling of Highly Compressed Data (Data Amplification)

Autobahn Python is a WebSocket and WAMP implementation for Python that supports Twisted and asyncio. Prior to 26.7.1, WebSocket endpoints that accept permessage-deflate and rely on maxMessagePayloadSize enforce that limit against the compressed frame length before inflation but do not recheck the...

Improper Handling of Highly Compressed Data (Data Amplification)

Overview Affected versions of this package are vulnerable to Improper Handling of Highly Compressed Data Data Amplification in the inflate payload processing path. An attacker can exhaust memory or trigger severe garbage-collection pressure by supplying a Smart Health Card JWT with a zip":"DEF"...

Improper Handling of Highly Compressed Data (Data Amplification)

Overview org.asynchttpclient:async-http-client is a maven plugin for the Async Http Client AHC classes. Affected versions of this package are vulnerable to Improper Handling of Highly Compressed Data Data Amplification through ChannelManager.newHttpContentDecompressor in...

CVE-2026-70469: Improper Handling of Highly Compressed Data (Data Amplification)

Apache NiFi 2.11.0 disabled support for gzip-encoded HTTP requests for the application REST API and rejected requests that included the standard Content-Encoding header indicating gzip encoding. The framework enforcement filter did not check multiple instances of the Content-Encoding header and d...

Improper Handling of Highly Compressed Data (Data Amplification)

Overview adm-zip is a JavaScript implementation for zip data compression for NodeJS. Affected versions of this package are vulnerable to Improper Handling of Highly Compressed Data Data Amplification via the inflater process. An attacker can exhaust system memory and disrupt service availability ...

CVE-2026-92000: Improper Handling of Highly Compressed Data (Data Amplification)

adm-zip versions 0.5.14 through 0.6.0 fail to apply zlib decompression output limits when ZIP entries declare zero uncompressed size. Attackers can craft malicious ZIP archives with highly compressible entries declaring zero size to exhaust memory and cause denial of service...

CVE-2026-44163: Improper Handling of Highly Compressed Data (Data Amplification)

fluent-plugin-opentelemetry is a Fluentd input and output plugin for forwarding OpenTelemetry Protocol data. Prior to 0.5.3, the inopentelemetry HTTP input read the entire incoming request body and decompressed payloads into memory without enforcing maximum size thresholds. When an OpenTelemetry...