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...

PT-2026-51014

Name of the Vulnerable Software and Affected Versions urllib3 version 2.6.3 Brotli version 1.2.0 Description A decompression bomb bypass exists in the streaming API preload content=False when Brotli support is used. This occurs because three independent code paths in response.py bypass the max...

CVE-2026-49755

Improper Handling of Highly Compressed Data Data Amplification vulnerability in wojtekmach Req allows attacker-controlled HTTP servers to exhaust memory in a Req client via decompression-bomb response bodies. Req's default response pipeline includes Req.Steps.decodebody/1 and...

CVE-2026-49755

Improper Handling of Highly Compressed Data Data Amplification vulnerability in wojtekmach Req allows attacker-controlled HTTP servers to exhaust memory in a Req client via decompression-bomb response bodies. Req's default response pipeline includes Req.Steps.decodebody/1 and...

EUVD-2026-35098

Improper Handling of Highly Compressed Data Data Amplification vulnerability in wojtekmach Req allows attacker-controlled HTTP servers to exhaust memory in a Req client via decompression-bomb response bodies. Req's default response pipeline includes Req.Steps.decodebody/1 and...

CVE-2026-49755

Technical details beyond what’s in the Initial Description are not provided in the connected documents. Monitor for updates for specifics on affected versions, root cause, and remediation.

req 安全漏洞

“req” is a simple Go HTTP client developed by a Roc individual using Black Magic. Versions of “req” from 0.1.0 to 0.6.1 contained security vulnerabilities. These vulnerabilities stemmed from improper handling of highly compressed data, which could allow an attacker-controlled HTTP server to exhau...

EulerOS Virtualization 2.13.1 : python-urllib3 (EulerOS-SA-2026-2147)

According to the versions of the python-urllib3 package installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities : urllib3 is an HTTP client library for Python. urllib3's streaming API is designed for the efficient handling of large HTTP...

EulerOS Virtualization 2.13.0 : python-urllib3 (EulerOS-SA-2026-2186)

According to the versions of the python-urllib3 package installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities : urllib3 is an HTTP client library for Python. urllib3's streaming API is designed for the efficient handling of large HTTP...

Docling: Unsafe Archive Extraction and XML Parsing in METS-GBS Backend

Impact The METS-GBS backend's XML parsing and the input document format detection lacked security controls, enabling: - XML External Entity XXE attacks to read local files or cause denial of service - Decompression bombs zip bombs to exhaust memory and disk space - Unbounded archive extraction...

GHSA-R3XG-RG9J-67FV Docling: Unsafe Archive Extraction and XML Parsing in METS-GBS Backend

Impact The METS-GBS backend's XML parsing and the input document format detection lacked security controls, enabling: - XML External Entity XXE attacks to read local files or cause denial of service - Decompression bombs zip bombs to exhaust memory and disk space - Unbounded archive extraction...

PT-2026-46105

Impact The METS-GBS backend's XML parsing and the input document format detection lacked security controls, enabling: - XML External Entity XXE attacks to read local files or cause denial of service - Decompression bombs zip bombs to exhaust memory and disk space - Unbounded archive extraction...

PT-2026-46120

Impact The METS-GBS backend's XML parsing and the input document format detection lacked security controls, enabling: - XML External Entity XXE attacks to read local files or cause denial of service - Decompression bombs zip bombs to exhaust memory and disk space - Unbounded archive extraction...

Tesla 安全漏洞

Tesla is an HTTP client software open-sourced by Elixir Tesla. Versions of Tesla from 0.6.0 to 1.18.3 contained security vulnerabilities. These vulnerabilities stemmed from the lack of restrictions on the size of decompressed data when processing highly compressed data, which could lead to...

OPENSUSE-SU-2026:20617-1 Security update for python-Pillow

This update for python-Pillow fixes the following issue: - CVE-2026-40192: Versions 10.3.0 through 12.1.1 did not limit the amount of GZIP-compressed data read when decoding a FITS image, making them vulnerable to decompression bomb attacks bsc1262184...

PT-2026-33882

Name of the Vulnerable Software and Affected Versions OpenBao versions prior to 2.5.3 Description The OCI plugin downloader contains an issue in the ExtractPluginFromImage function where plugin binaries are extracted from container images by streaming decompressed tar data via io.Copy without a...

Security Bulletin: IBM Watson Discovery Cartridge affected by vulnerability in urllib3-1.26.20-py2.py3-none-any.whl

Summary IBM Watson Discovery Cartridge affected by vulnerability in urllib3-1.26.20-py2.py3-none-any.whl Vulnerability Details CVEID:CVE-2026-21441 DESCRIPTION: urllib3 is an HTTP client library for Python. urllib3's streaming API is designed for the efficient handling of large HTTP responses by...

Scrapy: python-scrapy: brotli: Python brotli decompression bomb DoS

Scrapy are vulnerable to a denial of service DoS attack due to a flaw in its brotli decompression implementation. The protection mechanism against decompression bombs fails to mitigate the brotli variant, allowing remote servers to crash clients with less than 80GB of available memory. This occur...

EulerOS Virtualization 2.12.0 : brotli (EulerOS-SA-2026-1476)

According to the versions of the brotli package installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities : Scrapy versions up to 2.13.2 are vulnerable to a denial of service DoS attack due to a flaw in its brotli decompression...

Decompression bomb bypass via negative max_length in streaming API (incomplete fix for CVE-2025-66471)

Description The fix for CVE-2025-66471 in urllib3 2.6.0 added maxlength support to all decoders to prevent decompression bombs when using the streaming API. However, three independent code paths in response.py bypass this protection in urllib3 2.6.3 latest. Bypass 1 — Negative maxlength from buff...