CVE-2026-59899 Netty HttpContentEncoder: Unbounded Per-Connection Queue Growth via HTTP/1.1 Pipelining Leads to Denial of Service

Netty is an asynchronous, event-driven network application framework. Prior to versions 4.1.136.Final and 4.2.16.Final, HttpContentEncoder the superclass of the production handler HttpContentCompressor maintains a per-channel ArrayDeque named acceptEncodingQueue that accumulates attacker-controll...

GHSA-655F-MP8P-96GV Req vulnerable to unbounded archive/compression extraction triggered by response content-type

Summary Req's default response pipeline auto-decodes archive and compressed bodies based on the server-supplied content-type or URL extension and materialises the full decompressed contents in memory with no size cap. An attacker who controls or can redirect a victim into an HTTP endpoint reached...

EUVD-2026-35098

Req vulnerable to unbounded archive/compression extraction triggered by response content-type...

Req vulnerable to unbounded archive/compression extraction triggered by response content-type

Summary Req's default response pipeline auto-decodes archive and compressed bodies based on the server-supplied content-type or URL extension and materialises the full decompressed contents in memory with no size cap. An attacker who controls or can redirect a victim into an HTTP endpoint reached...

GHSA-Q4F6-JM68-57WW Netty: [HttpContentEncoder] Unbounded Per-Connection Queue Growth via HTTP/1.1 Pipelining Leads to Denial of Service

Impact HttpContentEncoder the superclass of the production handler HttpContentCompressor maintains a per-channel ArrayDeque named acceptEncodingQueue that accumulates attacker-controlled data without any size limit. The queue is filled on the I/O thread for every inbound HTTP request and drained...

PT-2026-63547

Name of the Vulnerable Software and Affected Versions Netty versions prior to 4.1.136.Final Netty versions prior to 4.2.16.Final Description HttpContentEncoder the superclass of the production handler HttpContentCompressor maintains a per-channel ArrayDeque named acceptEncodingQueue that...

httpd: incomplete fix for CVE-2023-38709

A flaw was found in httpd. The response headers are not sanitized before an HTTP response is sent when a malicious backend can insert a Content-Type, Content-Encoding, or some other headers. These issues lead to HTTP response splitting. This CVE provides a "complete" fix for CVE-2023-38709...

Tesla has decompression bomb on response body

Summary Any Tesla client pipeline that includes Tesla.Middleware.DecompressResponse or Tesla.Middleware.Compression eagerly decompresses HTTP response bodies with no size limit. A server under attacker control or reached via a redirect can return a tiny gzip-encoded payload that expands into...

EUVD-2026-34015

Tesla has decompression bomb on response body...

GHSA-MC85-72GR-VM9F Tesla has decompression bomb on response body

Summary Any Tesla client pipeline that includes Tesla.Middleware.DecompressResponse or Tesla.Middleware.Compression eagerly decompresses HTTP response bodies with no size limit. A server under attacker control or reached via a redirect can return a tiny gzip-encoded payload that expands into...

Improper Handling of Highly Compressed Data (Data Amplification)

Overview httplib2 is a small HTTP client library for Python. Affected versions of this package are vulnerable to Improper Handling of Highly Compressed Data Data Amplification through the decompressContent function in httplib2/init.py. An attacker can exhaust memory and crash the client by sendin...

PYSEC-2026-3444

httplib2 is a comprehensive HTTP client library for Python. Prior to 0.32.0, httplib2 performs unbounded decompression of HTTP response bodies encoded with Content-Encoding: gzip or deflate in decompressContent in httplib2/init.py, allowing a malicious or compromised HTTP server to return a small...

PYSEC-2026-3444

httplib2 is a comprehensive HTTP client library for Python. Prior to 0.32.0, httplib2 performs unbounded decompression of HTTP response bodies encoded with Content-Encoding: gzip or deflate in decompressContent in httplib2/init.py, allowing a malicious or compromised HTTP server to return a small...

CVE-2026-59939

httplib2 is a comprehensive HTTP client library for Python. Prior to 0.32.0, httplib2 performs unbounded decompression of HTTP response bodies encoded with Content-Encoding: gzip or deflate in decompressContent in httplib2/init.py, allowing a malicious or compromised HTTP server to return a small...

PT-2026-56548

Name of the Vulnerable Software and Affected Versions httplib2 versions prior to 0.32.0 Description An issue exists where the library performs unbounded decompression of HTTP response bodies encoded with Content-Encoding: gzip or deflate within the decompressContent function in httplib2/init.py. ...

PYSEC-2026-1996 Decompression-bomb safeguards bypassed when following HTTP redirects (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 decoding or decompression based on the HTTP Content-Encoding header e.g., gzip,...

urllib3 allows an unbounded number of links in the decompression chain

Impacturllib3 supports chained HTTP encoding algorithms for response content according to RFC 9110 e.g., Content-Encoding: gzip, zstd.However, the number of links in the decompression chain was unbounded allowing a malicious server to insert a virtually unlimited number of compression steps leadi...

PYSEC-2026-1998 urllib3 allows an unbounded number of links in the decompression chain

Impact urllib3 supports chained HTTP encoding algorithms for response content according to RFC 9110 e.g., Content-Encoding: gzip, zstd. However, the number of links in the decompression chain was unbounded allowing a malicious server to insert a virtually unlimited number of compression steps...

httpd: incomplete fix for CVE-2023-38709

A flaw was found in httpd. The response headers are not sanitized before an HTTP response is sent when a malicious backend can insert a Content-Type, Content-Encoding, or some other headers. These issues lead to HTTP response splitting. This CVE provides a "complete" fix for CVE-2023-38709...

org.eclipse.jetty/jetty-server: Eclipse Jetty: Denial of Service due to unreleased JDK Inflater from compressed HTTP requests

A flaw was found in org.eclipse.jetty. A remote attacker can exploit this vulnerability by sending a compressed HTTP request with Content-Encoding: gzip when the server's response is not compressed. This prevents the release of the JDK Inflater, leading to a resource leak. This resource exhaustio...