CVE-2026-27571 nats-server websockets are vulnerable to pre-auth memory DoS

NATS-Server is a High-Performance server for NATS.io, a cloud and edge native messaging system. The WebSockets handling of NATS messages handles compressed messages via the WebSockets negotiated compression. Prior to versions 2.11.2 and 2.12.3, the implementation bound the memory size of a NATS...

CVE-2026-27571

NATS-Server WebSockets handling is vulnerable to a pre-auth memory DoS via a compression bomb. Prior to v2.11.2 and v2.12.3, memory bounds for a NATS message were not independently applied to the memory stream, allowing excessive memory consumption and potential OS termination. The issue is explo...

CVE-2026-27571

NATS-Server is a High-Performance server for NATS.io, a cloud and edge native messaging system. The WebSockets handling of NATS messages handles compressed messages via the WebSockets negotiated compression. Prior to versions 2.11.2 and 2.12.3, the implementation bound the memory size of a NATS...

urllib3: urllib3 vulnerable to decompression-bomb safeguard bypass when following HTTP redirects (streaming API)

urllib3 is an HTTP client library for Python. urllib3's streaming API is designed for the efficient handling of large HTTP responses by reading the content in chunks, rather than loading the entire response body into memory at once. urllib3 can perform decoding or decompression based on the HTTP...

RHEL 8 / 9 : Satellite 6.16.6.1 Async Update (Important) (RHSA-2026:2765)

The remote Redhat Enterprise Linux 8 / 9 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2026:2765 advisory. Red Hat Satellite is a system management solution that allows organizations to configure and maintain their systems without the necessit...

urllib3: urllib3 vulnerable to decompression-bomb safeguard bypass when following HTTP redirects (streaming API)

urllib3 is an HTTP client library for Python. urllib3's streaming API is designed for the efficient handling of large HTTP responses by reading the content in chunks, rather than loading the entire response body into memory at once. urllib3 can perform decoding or decompression based on the HTTP...

urllib3: urllib3 vulnerable to decompression-bomb safeguard bypass when following HTTP redirects (streaming API)

urllib3 is an HTTP client library for Python. urllib3's streaming API is designed for the efficient handling of large HTTP responses by reading the content in chunks, rather than loading the entire response body into memory at once. urllib3 can perform decoding or decompression based on the HTTP...

urllib3: urllib3 vulnerable to decompression-bomb safeguard bypass when following HTTP redirects (streaming API)

urllib3 is an HTTP client library for Python. urllib3's streaming API is designed for the efficient handling of large HTTP responses by reading the content in chunks, rather than loading the entire response body into memory at once. urllib3 can perform decoding or decompression based on the HTTP...

urllib3: urllib3 vulnerable to decompression-bomb safeguard bypass when following HTTP redirects (streaming API)

urllib3 is an HTTP client library for Python. urllib3's streaming API is designed for the efficient handling of large HTTP responses by reading the content in chunks, rather than loading the entire response body into memory at once. urllib3 can perform decoding or decompression based on the HTTP...

MiracleLinux 8 : brotli-1.0.6-4.el8_10.ML.1 (AXSA:2026-176:02)

The remote MiracleLinux 8 host has packages installed that are affected by a vulnerability as referenced in the AXSA:2026-176:02 advisory. Scrapy: python-scrapy: brotli: Python brotli decompression bomb DoS CVE-2025-6176 Tenable has extracted the preceding description block directly from the...

OPENSUSE-SU-2026:20204-1 Security update for python-aiohttp, python-Brotli

This update for python-aiohttp, python-Brotli fixes the following issues: Changes in python-aiohttp: - CVE-2025-69228: Fixed denial of service through large payloads bsc1256022. - CVE-2025-69226: Fixed brute-force leak of internal static file path components bsc1256020. - CVE-2025-69224: Fixed...

SUSE-SU-2026:20425-1 Security update for python-aiohttp, python-Brotli

This update for python-aiohttp, python-Brotli fixes the following issues: Changes in python-aiohttp: - CVE-2025-69228: Fixed denial of service through large payloads bsc1256022. - CVE-2025-69226: Fixed brute-force leak of internal static file path components bsc1256020. - CVE-2025-69224: Fixed...

fence-agents security update

An update is available for fence-agents. This update affects Rocky Linux 8. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list The fence-agents packages provide a collection of scripts for handling...

RockyLinux 8 : fence-agents (RLSA-2026:1240)

The remote RockyLinux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2026:1240 advisory. urllib3: urllib3: Unbounded decompression chain leads to resource exhaustion CVE-2025-66418 urllib3: urllib3 Streaming API improperly handles highly...

RLSA-2026:1087 Important: python-urllib3 security update

Python is an interpreted, interactive, object-oriented programming language, which includes modules, classes, exceptions, very high level dynamic data types and dynamic typing. Python supports interfaces to many system calls and libraries, as well as to various windowing systems. Security Fixes:...

python3.11-urllib3 security update

An update is available for python3.11-urllib3. This update affects Rocky Linux 9. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list Python is an interpreted, interactive, object-oriented programming...

RLSA-2026:2389 Important: brotli security update

Brotli is a generic-purpose lossless compression algorithm that compresses data using a combination of a modern variant of the LZ77 algorithm, Huffman coding and 2nd order context modeling, with a compression ratio comparable to the best currently available general-purpose compression methods. It...

brotli security update

An update is available for brotli. This update affects Rocky Linux 8. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list Brotli is a generic-purpose lossless compression algorithm that compresses dat...

RockyLinux 10 : python-urllib3 (RLSA-2026:1086)

The remote RockyLinux 10 host has a package installed that is affected by multiple vulnerabilities as referenced in the RLSA-2026:1086 advisory. urllib3: urllib3: Unbounded decompression chain leads to resource exhaustion CVE-2025-66418 urllib3: urllib3 Streaming API improperly handles highly...

RockyLinux 8 : brotli (RLSA-2026:2389)

The remote RockyLinux 8 host has packages installed that are affected by a vulnerability as referenced in the RLSA-2026:2389 advisory. Scrapy: python-scrapy: brotli: Python brotli decompression bomb DoS CVE-2025-6176 Tenable has extracted the preceding description block directly from the RockyLin...