CVE-2026-91920

A flaw exists in the ChunkReader component of the Undertow web server used for handling chunked transfer encoding in HTTP requests. The root cause is that a security check for the chunk size is performed before the value is shifted, allowing a specially crafted 15-digit chunk size to bypass limit...

CVE-2026-91920: Red Hat: A flaw was found in the ChunkReader component of the Undertow web server, which is used to handle chunked transfer…

A flaw was found in the ChunkReader component of the Undertow web server, which is used to handle chunked transfer encoding in HTTP requests. The issue occurs because a security check for the chunk size is performed before the value is shifted, allowing a specifically crafted 15-digit chunk size ...

openSUSE 16 Security Update : haproxy (openSUSE-SU-2026:22162-1)

The remote openSUSE 16 host has a package installed that is affected by a vulnerability as referenced in the openSUSE- SU-2026:22162-1 advisory. This update for haproxy fixes the following issue: - h1-htx: report an error on a too long chunk-size line bsc1285046. Changes for haproxy: - Otel Updat...

Security update for haproxy (moderate)

openSUSE security update: security update for haproxy ------------------------------------------------------------- Announcement ID: openSUSE-SU-2026:22162-1 Rating: moderate References: bsc1285046 Affected Products: openSUSE Leap 16.0 -------------------------------------------------------------...

io.netty/netty-codec-http: Netty: HTTP Request Smuggling due to control characters in the chunk-size line

A flaw was found in Netty. A remote attacker could exploit this by sending a specially crafted HTTP request that includes control characters within the chunk-size line. This bypasses the intended strict validation, allowing the attacker to inject arbitrary HTTP requests. This vulnerability can le...

io.netty/netty-codec-http: Netty: HTTP request smuggling via post-digit whitespace in chunk-size parsing

A flaw was found in Netty's netty-codec-http component. A remote attacker could exploit this vulnerability by sending a specially crafted HTTP/1.1 chunk-size token that includes post-digit whitespace. This incorrect parsing of the chunk size can lead to HTTP request smuggling. This allows an...

Important: python-pip

Issue Overview: 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 trigge...

Astra Linux – Vulnerability found in Linux 6.1, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: fs/ntfs3: Check whether more than chunksize bytes are written. An incorrectly formatted chunk may be decompressed into more than LZNTCHUNKSIZE bytes, and an out-of-bounds index will occur in smaxoff...

NetScaler 73.30 HTTP Request Smuggling

NetScaler version 73.30 contains an HTTP/1.1 chunk-size accumulator overflow that can cause request parsing desynchronization and request smuggling...

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...

SUSE CVE-2026-93566

A flaw was found in Netty. A remote attacker could exploit this by sending a specially crafted HTTP request that includes control characters within the chunk-size line. This bypasses the intended strict validation, allowing the attacker to inject arbitrary HTTP requests. This vulnerability can le...

SUSE CVE-2026-93574

A flaw was found in Netty's netty-codec-http component. A remote attacker could exploit this vulnerability by sending a specially crafted HTTP/1.1 chunk-size token that includes post-digit whitespace. This incorrect parsing of the chunk size can lead to HTTP request smuggling. This allows an...

undertow-core: Undertow:HTTP request smuggling via oversized chunk-size bit overlap

A flaw was found in the ChunkReader component of the Undertow HTTP server, which is used by WildFly and JBoss EAP to handle chunked transfer encoding. The issue occurs because the parser uses a single internal variable to store both the remaining chunk size and state flags. By sending a specially...

undertow-core: Undertow:HTTP request smuggling via oversized chunk-size bit overlap

A flaw was found in the ChunkReader component of the Undertow HTTP server, which is used by WildFly and JBoss EAP to handle chunked transfer encoding. The issue occurs because the parser uses a single internal variable to store both the remaining chunk size and state flags. By sending a specially...

io.netty/netty-codec-http: Netty: HTTP request smuggling via post-digit whitespace in chunk-size parsing

A flaw was found in Netty's netty-codec-http component. A remote attacker could exploit this vulnerability by sending a specially crafted HTTP/1.1 chunk-size token that includes post-digit whitespace. This incorrect parsing of the chunk size can lead to HTTP request smuggling. This allows an...

io.netty/netty-codec-http: Netty: HTTP Request Smuggling due to control characters in the chunk-size line

A flaw was found in Netty. A remote attacker could exploit this by sending a specially crafted HTTP request that includes control characters within the chunk-size line. This bypasses the intended strict validation, allowing the attacker to inject arbitrary HTTP requests. This vulnerability can le...

io.netty/netty-codec-http: Netty: HTTP request smuggling via post-digit whitespace in chunk-size parsing

A flaw was found in Netty's netty-codec-http component. A remote attacker could exploit this vulnerability by sending a specially crafted HTTP/1.1 chunk-size token that includes post-digit whitespace. This incorrect parsing of the chunk size can lead to HTTP request smuggling. This allows an...

io.netty/netty-codec-http: Netty: HTTP Request Smuggling due to control characters in the chunk-size line

A flaw was found in Netty. A remote attacker could exploit this by sending a specially crafted HTTP request that includes control characters within the chunk-size line. This bypasses the intended strict validation, allowing the attacker to inject arbitrary HTTP requests. This vulnerability can le...

Linux Distros Unpatched Vulnerability : CVE-2026-93566

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - A flaw was found in Netty. A remote attacker could exploit this by sending a specially crafted HTTP request that includes control characters within the chunk-si...

CVE-2026-82672

Inconsistent Interpretation of HTTP Requests 'HTTP Request/Response Smuggling' vulnerability in elixir-mint mint allows a malicious HTTP/1 server to desynchronize a strict intermediary and the Mint client on a pooled connection, enabling response-queue poisoning against subsequent requests that...