Decompression Bomb

Overview urllib3 is a HTTP library with thread-safe connection pooling, file post, and more. Affected versions of this package are vulnerable to Decompression Bomb either in HTTPResponse.read when Brotli is in use, or when HTTPResponse.drainconn is called after partial decompression has begun. An...

GHSA-MF9V-MFXR-J63J urllib3: Decompression-bomb safeguards bypassed in parts of the streaming API

Impact 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 decompression based on the HTTP Content-Encoding header e.g., gzip, deflate, br, or...

urllib3: Decompression-bomb safeguards bypassed in parts of the streaming API

Impact 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 decompression based on the HTTP Content-Encoding header e.g., gzip, deflate, br, or...

CLSA-2026-1778489354 python2: Fix of CVE-2026-6100

CVE-2026-6100: defensively null bzs-nextin on the error path of BZ2Decompdecompress to align with upstream; the UAF window does not exist in Python 2.7 nextin is reassigned at function entry, lzma/gzip are not C extensions...

PT-2026-39744

🚨 High - urllib3 Sensitive Header Leak & Decompression Bomb Safeguard Bypass CVE-2026-31015 & CVE-2026-31020 Two critical vulnerabilities were identified in the urllib3 library Node.js/Python. The first flaw GHSA-qccp-gfcp-xxvc allows sensitive headers like Authorization and Cookie to be leaked...

PT-2026-39745

In DocsGPT 0.15.0 and below, the application provides a custom prompt feature that allows users to define prompt content used during chatbot interactions. This functionality renders user-supplied prompt data using Jinja templates without input sanitization or sandboxing. An unauthenticated attack...

Audiobookshelf security vulnerabilities

Audiobookshelf is an open-source, self-hosted server for audio books and podcasts. Versions of Audiobookshelf prior to 2.32.2 contained a security vulnerability. This vulnerability stemmed from the backup upload endpoint not restricting the decompression size, allowing administrators to upload...

urllib3: urllib3: Denial of Service due to excessive HTTP response decompression

A flaw was found in urllib3, an HTTP client library for Python. This vulnerability allows a remote attacker to cause excessive resource consumption, such as high CPU usage and massive memory allocation, on the client side. This occurs when urllib3 attempts to decompress an entire HTTP response,...

OESA-2026-2262 hdf5 security update

HDF5 is a data model, library, and file format for storing and managing data. It supports an unlimited variety of datatypes, and is designed for flexible and efficient I/O and for high volume and complex data. HDF5 is portable and is extensible, allowing applications to evolve in their use of HDF...

Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: libarchive (UTSA-2026-016784)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-016784 advisory. A flaw was identified in the RAR5 archive decompression logic of the libarchive library, specifically within the archivereaddata processing path. When a specially...

c-blosc2:decompress_frame_fuzzer: Use-of-uninitialized-value in get_coffset

Detailed Report: https://oss-fuzz.com/testcase?key=4559143301349376 Project: c-blosc2 Fuzzing Engine: libFuzzer Fuzz Target: decompressframefuzzer Job Type: libfuzzermsanc-blosc2 Platform Id: linux Crash Type: Use-of-uninitialized-value Crash Address: Crash State: getcoffset framegetchunk...

CLSA-2026-1778239845 skopeo: Fix of 2 CVEs

CVE-2024-6104: backport go-retryablehttp URL redaction so basic-auth credentials embedded in request URLs are not written to logs/errors - CVE-2024-28180: backport go-jose decompression-bomb fix to both vendored major versions github.com/go-jose/go-jose/v3 and gopkg.in/square/go-jose.v2...

SUSE-SU-2026:21599-1 Security update for cpp-httplib

This update for cpp-httplib fixes the following issues - CVE-2026-21428: server-side request forgery via header injection bsc1255835. - CVE-2026-22776: unsafe handling of compressed HTTP request can cause a denial of service bsc1256518. - CVE-2026-28434: default exception handler may leak e.what ...

OPENSUSE-SU-2026:20733-1 Security update for cpp-httplib

This update for cpp-httplib fixes the following issues - CVE-2026-21428: server-side request forgery via header injection bsc1255835. - CVE-2026-22776: unsafe handling of compressed HTTP request can cause a denial of service bsc1256518. - CVE-2026-28434: default exception handler may leak e.what ...

Security Bulletin: IBM Automation Decision Services for April 2026- Multiple CVEs addressed

Summary In addition to many updates of operating system level packages, the following security vulnerabilities are addressed with IBM Automation Decision Services. See full list below. Vulnerability Details CVEID:CVE-2025-12183 DESCRIPTION: Out-of-bounds memory operations in org.lz4:lz4-java 1.8....

Important: Red Hat Security Advisory: python3.12 security update

An update for python3.12 is now available for Red Hat Enterprise Linux 9.6 Extended Update Support. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available...

python: Python: Arbitrary code execution or information disclosure via use-after-free in decompression modules

A flaw was found in Python's decompression modules, including lzma.LZMADecompressor, bz2.BZ2Decompressor, and gzip.GzipFile. This vulnerability, a use-after-free, can occur if a program attempts to re-use a decompression object after a memory allocation error, especially when the system is...

python: Python: Arbitrary code execution or information disclosure via use-after-free in decompression modules

A flaw was found in Python's decompression modules, including lzma.LZMADecompressor, bz2.BZ2Decompressor, and gzip.GzipFile. This vulnerability, a use-after-free, can occur if a program attempts to re-use a decompression object after a memory allocation error, especially when the system is...

python: Python: Arbitrary code execution or information disclosure via use-after-free in decompression modules

A flaw was found in Python's decompression modules, including lzma.LZMADecompressor, bz2.BZ2Decompressor, and gzip.GzipFile. This vulnerability, a use-after-free, can occur if a program attempts to re-use a decompression object after a memory allocation error, especially when the system is...

Bandit's unbounded WebSocket inflate causes BEAM OOM with a single frame

Summary When a Bandit-fronted server has explicitly enabled WebSocket permessage-deflate compress: true, an unauthenticated client can OOM the BEAM with a single 6 MiB WebSocket frame. Bandit's inflate step has no output-size cap, so a small high-ratio compressed frame e.g. zeros, 1024:1 ratio...