PYSEC-2026-4177 urllib3: HTTPResponse.stream()/read_chunked() buffers an unbounded chunk-size line into memory

Impact urllib3's streaming API is designed for efficiently handling large HTTP responses by reading the content in chunks, rather than loading the entire response body into memory at once. When decoding a chunked-transfer-encoded response, this API reads each chunk's size field by buffering until...

urllib3: HTTPResponse.stream()/read_chunked() buffers an unbounded chunk-size line into memory

Impact urllib3's streaming API is designed for efficiently handling large HTTP responses by reading the content in chunks, rather than loading the entire response body into memory at once. When decoding a chunked-transfer-encoded response, this API reads each chunk's size field by buffering until...

GHSA-VXQ7-64XX-V4GW urllib3: HTTPResponse.stream()/read_chunked() buffers an unbounded chunk-size line into memory

Impact urllib3's streaming API is designed for efficiently handling large HTTP responses by reading the content in chunks, rather than loading the entire response body into memory at once. When decoding a chunked-transfer-encoded response, this API reads each chunk's size field by buffering until...

CVE-2026-97689

urllib3 is an HTTP client library for Python. From 1.10.3 until 2.8.0, the HTTPResponse.readchunked and HTTPResponse.stream methods can allocate unbounded memory because the streaming chunk parser buffers the chunk-size field until newline or EOF without a length bound. The trigger is that a...

Fedora 45 : python-quart-trio / python-streamlink / python-urllib3 (2026-9a652403b1)

The remote Fedora 45 host has packages installed that are affected by a vulnerability as referenced in the FEDORA-2026-9a652403b1 advisory. Update python-urllib3 to version 2.8.0, fixing three security issues: - The TLS configuration for HTTPS proxies could be ignored or overridden. Rated high...

Fedora 46 : python-streamlink / python-urllib3 (2026-3a61bdd470)

The remote Fedora 46 host has packages installed that are affected by a vulnerability as referenced in the FEDORA-2026-3a61bdd470 advisory. Update python-urllib3 to version 2.8.0, fixing three security issues: - The TLS configuration for HTTPS proxies could be ignored or overridden. Rated high...

SUSE CVE-2026-6324

A flaw was found in libsoup. A remote attacker could exploit an unsigned to signed conversion error in the soupbodyinputstreamreadchunked function by sending a malicious HTTP request. This vulnerability occurs when libsoup operates behind a non-libsoup proxy server or as a proxy in front of a...