PT-2026-79057

WebOb provides objects for HTTP requests and responses. Prior to 1.8.11, Response. make location absolute in src/webob/response.py checks a Location value for a URI scheme or leading double slash before urllib.parse.urljoin strips leading C0 control characters and spaces. An attacker-controlled...

CVE-2026-54739

In Lemmy versions before 0.19.19 and 1.0.0-beta.1, the login endpoint returns HTTP 404 for nonexistent accounts and HTTP 400 for wrong passwords on existing accounts, enabling unauthenticated user/email enumeration. No in-the-wild exploitation is reported. Upgrade to 0.19.19 or 1.0.0-beta.1.

UBUNTU-CVE-2026-74998

In Roundcube Webmail before 1.6.18 and 1.7.x before 1.7.3, responses from the CSS Cascading Style Sheets proxy were not validated, which may result in information disclosure or XSS cross-site scripting via MIME sniffing...

UBUNTU-CVE-2026-19879

A flaw was found in Undertow, an HTTP server, within its HTTP response header writing path. The writeString method performs a silent narrowing cast from 16-bit Unicode characters to 8-bit bytes when writing HTTP response header values. A remote attacker can exploit this by supplying specific...

CVE-2026-19879

A flaw was found in Undertow, an HTTP server, within its HTTP response header writing path. The writeString method performs a silent narrowing cast from 16-bit Unicode characters to 8-bit bytes when writing HTTP response header values. A remote attacker can exploit this by supplying specific...

Security Bulletin: IBM Transformation Extender Advanced is affected by IBM WebSphere Application Server Liberty vulnerabilities

Summary IBM Transformation Extender Advanced, also known as IBM Standards Processing Engine uses WebSphere Application Server Liberty which is affected by a denial of service, HTTP Response and Request Smuggling vulnerabilities. Vulnerability Details Refer to the security bulletins listed in the...

RockyLinux 10 : nghttp2 (RLSA-2026:54650)

The remote RockyLinux 10 host has packages installed that are affected by a vulnerability as referenced in the RLSA-2026:54650 advisory. nghttp2: nghttp2: HTTP Request/Response Smuggling and Response-Queue Poisoning via ambiguous HTTP/1.1 Upgrade requests CVE-2026-58055 Tenable has extracted the...

Linux Distros Unpatched Vulnerability : CVE-2026-19879

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 Undertow, an HTTP server, within its HTTP response header writing path. The writeString method performs a silent narrowing cast from 16-bit...

CVE-2026-73232

A flaw was found in ffuf, a fast web fuzzer. A malicious server could exploit this vulnerability by sending a specially crafted HTTP response that, when decompressed by ffuf, consumes excessive memory. This can lead to an out-of-memory condition, causing a denial of service DoS for the ffuf...

netty: io.netty/netty-codec-http: Netty: Incorrect HTTP response parsing leads to data confusion

A flaw was found in Netty, an asynchronous, event-driven network application framework. A remote attacker could exploit this vulnerability by sending a specific sequence of HTTP responses 103, followed by a 200 with a GET body, then another 200 for a HEAD request when the client pipelines GET the...

CVE-2026-73232 ffuf denial of service (OOM) via HTTP response decompression bomb

ffuf is a fast web fuzzer written in Go. Prior to 2.2.0, ffuf allows a malicious target server to cause an out-of-memory denial of service because the response size guard in pkg/runner/simple.go checks only the compressed Content-Length while io.ReadAll reads gzip, brotli, deflate, transparently...

CVE-2026-73232

CVE-2026-73232 affects ffuf (Go) prior to 2.2.0. The vulnerability arises when a malicious server uses HTTP responses with compressed content: the guard in pkg/runner/simple.go checks only Content-Length, while io.ReadAll can read gzip, brotli, deflate, or chunked bodies without a decompressed-si...

CVE-2026-73232 ffuf denial of service (OOM) via HTTP response decompression bomb

ffuf is a fast web fuzzer written in Go. Prior to 2.2.0, ffuf allows a malicious target server to cause an out-of-memory denial of service because the response size guard in pkg/runner/simple.go checks only the compressed Content-Length while io.ReadAll reads gzip, brotli, deflate, transparently...

netty: io.netty/netty-codec-http: Netty: Incorrect HTTP response parsing leads to data confusion

A flaw was found in Netty, an asynchronous, event-driven network application framework. A remote attacker could exploit this vulnerability by sending a specific sequence of HTTP responses 103, followed by a 200 with a GET body, then another 200 for a HEAD request when the client pipelines GET the...

Security Bulletin: IBM WebSphere Application Server and WebSphere Application Server Liberty are affected by multiple vulnerabilities

Summary IBM WebSphere Application Server and WebSphere Application Server Liberty are affected by a denial of service, HTTP Response and Request Smuggling vulnerabilities when servlet-3.0, servlet-3.1, servlet-4.0, servlet-5.0, servlet-6.0, or servlet-6.1 is enabled. Vulnerability Details...

netty: io.netty/netty-codec-http: Netty: Incorrect HTTP response parsing leads to data confusion

A flaw was found in Netty, an asynchronous, event-driven network application framework. A remote attacker could exploit this vulnerability by sending a specific sequence of HTTP responses 103, followed by a 200 with a GET body, then another 200 for a HEAD request when the client pipelines GET the...

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...

Astra Linux – Vulnerability in Python 3.11

When reading an HTTP response from a server, if no read amount is specified, the default behavior will be to use Content-Length. This allows a malicious server to cause the client to read large amounts of data into memory, potentially leading to Out-of-Memory errors or other types of...

CVE-2026-12071

The Webbox of TeamDavid by Tobit Laboratories AG constructs redirect URLs using user-supplied input, which is appended to the redirect target in a 302 HTTP response. By using URL-encoded characters such as “%2e” representing a dot, an attacker can manipulate the portion of the URL following the...

ALSA-2026:50317 Important: fence-agents security update

The fence-agents packages provide a collection of scripts for handling remote power management for cluster devices. They allow failed or unreachable nodes to be forcibly restarted and removed from the cluster. Security Fixes: httplib2: httplib2: Denial of Service via unbounded decompression of HT...