Fedora 43 : nghttp2 (2026-91dd0c29d6)

The remote Fedora 43 host has a package installed that is affected by a vulnerability as referenced in the FEDORA-2026-91dd0c29d6 advisory. - fix HTTP Request/Response Smuggling and Response-Queue Poisoning via ambiguous HTTP/1.1 Upgrade requests CVE-2026-58055 Tenable has extracted the preceding...

IBM WebSphere Application Server Input Validation Vulnerability (CNVD-2026-31548)

IBM WebSphere Application Server is an application server product developed by IBM. There is a security vulnerability in IBM WebSphere Application Server, which stems from improper handling of HTTP version tokens. Attackers can exploit this vulnerability to perform HTTP response smuggling attacks...

CVE-2026-15064

IBM WebSphere Application Server 9.0, and 8.5 and IBM WebSphere Application Server - Liberty 17.0.0.3 through 26.0.0.7 is vulnerable to HTTP Response Smuggling due to improper handling of non-standard HTTP version tokens...

CVE-2026-15064

CVE-2026-15064 affects IBM WebSphere Application Server 9.0, IBM WebSphere Application Server 8.5, and IBM WebSphere Application Server Liberty 17.0.0.3 through 26.0.0.7. The issue is a vulnerability to HTTP Response Smuggling caused by improper handling of non-standard HTTP version tokens. The c...

CVE-2026-15064 IBM WebSphere Application Server and WebSphere Application Server Liberty are affected by multiple vulnerabilities

IBM WebSphere Application Server 9.0, and 8.5 and IBM WebSphere Application Server - Liberty 17.0.0.3 through 26.0.0.7 is vulnerable to HTTP Response Smuggling due to improper handling of non-standard HTTP version tokens...

CVE-2026-15064 IBM WebSphere Application Server and WebSphere Application Server Liberty are affected by multiple vulnerabilities

IBM WebSphere Application Server 9.0, and 8.5 and IBM WebSphere Application Server - Liberty 17.0.0.3 through 26.0.0.7 is vulnerable to HTTP Response Smuggling due to improper handling of non-standard HTTP version tokens...

EUVD-2026-50024

IBM WebSphere Application Server 9.0, and 8.5 and IBM WebSphere Application Server - Liberty 17.0.0.3 through 26.0.0.7 is vulnerable to HTTP Response Smuggling due to improper handling of non-standard HTTP version tokens...

CVE-2026-59249 Sign-tolerant HTTP/1 chunk-size parser in Mint enables response smuggling against strict intermediaries on pooled connections

Inconsistent interpretation of HTTP requests HTTP response smuggling vulnerability in elixir-mint mint allows a malicious HTTP/1 server to desynchronize a strict intermediary and the Mint client on the same pooled connection, enabling response-queue poisoning against subsequent requests that shar...

CVE-2026-59249

The CVE concerns the Elixir Mint library (mint) and its HTTP/1.1 decoding path. Specifically, Mint.HTTP1.decode_body/5 parses chunk-size lines using Integer.parse(data, 16), which accepts a leading + or - despite RFC 7230 requiring unsigned hex digits. This leads to a mismatch with RFC-strict int...

CVE-2026-59249 Sign-tolerant HTTP/1 chunk-size parser in Mint enables response smuggling against strict intermediaries on pooled connections

Inconsistent interpretation of HTTP requests HTTP response smuggling vulnerability in elixir-mint mint allows a malicious HTTP/1 server to desynchronize a strict intermediary and the Mint client on the same pooled connection, enabling response-queue poisoning against subsequent requests that shar...

CVE-2026-59249 Sign-tolerant HTTP/1 chunk-size parser in Mint enables response smuggling against strict intermediaries on pooled connections

Inconsistent interpretation of HTTP requests HTTP response smuggling vulnerability in elixir-mint mint allows a malicious HTTP/1 server to desynchronize a strict intermediary and the Mint client on the same pooled connection, enabling response-queue poisoning against subsequent requests that shar...

EEF-CVE-2026-59249 Sign-tolerant HTTP/1 chunk-size parser in Mint enables response smuggling against strict intermediaries on pooled connections

Summary Inconsistent interpretation of HTTP requests HTTP response smuggling vulnerability in elixir-mint mint allows a malicious HTTP/1 server to desynchronize a strict intermediary and the Mint client on the same pooled connection, enabling response-queue poisoning against subsequent requests...

MGASA-2026-0250 Updated haproxy packages fix security vulnerability

HAProxy through 3.4.0, fixed in commit 5985276, contains an integer overflow vulnerability in the fcgiconn structure's drl field that allows buffer misparse as new FCGI record headers. When contentLength is 65535 and paddingLength is 1 or more, the drl field wraps to 0, causing incorrect record...

PYSEC-2026-1058 Apache HTTP Server via mod_proxy_uwsgi HTTP response smuggling

HTTP Response Smuggling vulnerability in Apache HTTP Server via modproxyuwsgi. This issue affects Apache HTTP Server from 2.4.30 through 2.4.55 and the uWSGI PyPI package prior to version 2.0.22. Special characters in the origin response header can truncate/split the response forwarded to the...

haproxy: HAProxy: Response smuggling due to integer overflow in FastCGI record length handling

A flaw was found in HAProxy. A malicious FastCGI Fast Common Gateway Interface backend can exploit an integer overflow vulnerability in the fcgiconn structure's drl field. This occurs when specific contentLength and paddingLength values cause the drl field to wrap to zero, leading to incorrect...

USN-8495-1: nghttp2 vulnerability

It was discovered that the nghttp2 nghttpx proxy incorrectly handled HTTP/1.1 Upgrade requests that included a Content-Length header and body. A remote attacker could possibly use this issue to perform HTTP request and response smuggling attacks against backend services...

PT-2026-55438

It was discovered that the nghttp2 nghttpx proxy incorrectly handled HTTP/1.1 Upgrade requests that included a Content-Length header and body. A remote attacker could possibly use this issue to perform HTTP request and response smuggling attacks against backend services...

USN-8459-1 haproxy vulnerabilities

It was discovered that HAProxy incorrectly handled the FCGI demultiplexer record length field. A remote attacker could possibly use this issue to cause incorrect request routing, response smuggling, or other memory safety issues. CVE-2026-55203 It was discovered that HAProxy failed to validate th...

CVE-2026-49753 HTTP response smuggling in Mint HTTP/1 client via lenient Content-Length parsing

Inconsistent Interpretation of HTTP Requests 'HTTP Request/Response Smuggling' vulnerability in elixir-mint Mint allows attacker-controlled HTTP/1 servers to desynchronise response framing on shared connections. Mint's HTTP/1 Content-Length parser, Mint.HTTP1.Parse.contentlengthheader/1 in...

CVE-2026-49753

Summary of the vulnerability : CVE-2026-49753 affects the Elixir Mint HTTP/1 client. The root cause is a lenient Content-Length parser in Mint.HTTP1.Parse.content_length_header/1, which accepts a leading + sign (e.g., +0, +123) despite RFC 7230 requiring unsigned digits only. When the same Mint c...