CVE-2026-93566 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...

CVE-2026-93566

Netty (io.netty/netty-codec-http) is vulnerable to HTTP request smuggling due to a flaw in chunk-size line validation. The method HttpObjectDecoder#checkChunkExtensions only invokes the strict validator HttpChunkLineValidatingByteProcessor when a chunk extension (;) is present. When no extension ...

CVE-2026-93566: Undefined Security Weakness

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...

Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: python3 (UTSA-2026-109794)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-109794 advisory. The fix for CVE-2026-0672, which rejected control characters in http.cookies.Morsel, was incomplete. The Morsel.update, |= operator, and unpickling paths were not...

CVE-2026-69211

Http4s is a Scala library for HTTP services. Prior to 0.23.35 and 1.0.0-M47 , the ResponseCookie.render method writes attacker-influenced name, content, domain, path, and extension values without neutralizing semicolons or control characters. An application that constructs a ResponseCookie from u...

AZL-103263 CVE-2026-91986 affecting package rust 1.75.0-31

gitoxide gix-transport before 0.59.2 fails to filter control characters in git-daemon connect requests, allowing attackers to inject NUL/CR/LF bytes via crafted git URLs. Attackers can inject extra NUL-delimited protocol fields to spoof virtual hosts or inject newlines into daemon requests and lo...

DEBIAN-CVE-2026-91986

gitoxide gix-transport before 0.59.2 fails to filter control characters in git-daemon connect requests, allowing attackers to inject NUL/CR/LF bytes via crafted git URLs. Attackers can inject extra NUL-delimited protocol fields to spoof virtual hosts or inject newlines into daemon requests and lo...

UBUNTU-CVE-2026-91986

gitoxide gix-transport before 0.59.2 fails to filter control characters in git-daemon connect requests, allowing attackers to inject NUL/CR/LF bytes via crafted git URLs. Attackers can inject extra NUL-delimited protocol fields to spoof virtual hosts or inject newlines into daemon requests and lo...

CVE-2026-91986 gitoxide gix-transport before 0.59.2 CR/LF/NUL Injection

gitoxide gix-transport before 0.59.2 fails to filter control characters in git-daemon connect requests, allowing attackers to inject NUL/CR/LF bytes via crafted git URLs. Attackers can inject extra NUL-delimited protocol fields to spoof virtual hosts or inject newlines into daemon requests and lo...

CVE-2026-91986

gitoxide gix-transport before 0.59.2 fails to filter control characters in git-daemon connect requests, allowing attackers to inject NUL/CR/LF bytes via crafted git URLs. Attackers can inject extra NUL-delimited protocol fields to spoof virtual hosts or inject newlines into daemon requests and lo...

Astra Linux – Vulnerability in OpenSSH

In OpenSSH versions prior to 10.1, control characters in user names that originated from certain potentially untrusted sources could lead to code execution when ProxyCommand was used. The potentially untrusted sources include the command line and the %-sequence expansion from a configuration file...

Astra Linux – Vulnerability in Python 3.11, Python 3.7

The poplib module, when a user-controlled command is passed to it, can have additional commands injected using newlines. Mitigation rejects commands that contain control characters...

Astra Linux – Vulnerability in Shadow

In Shadow 4.13, it is possible to inject control characters into fields provided to the SUID program chfn change finger. Although it is not possible to exploit this directly for example, adding a new user fails because \n is in the block list, it is possible to misrepresent the /etc/passwd file...

Astra Linux – Vulnerability in Python 3.11, Python 3.7

The imaplib module, when a user-controlled command is passed to it, can have additional commands injected using newlines. Mitigation rejects commands that contain control characters...

Astra Linux – Vulnerability in sudo

Before version 1.9.13, Sudo did not escape control characters in log messages...

Astra Linux – Vulnerability in Flatpak

Flatpak is a system for building, distributing, and running sandboxed desktop applications on Linux. In versions prior to 1.10.8, 1.12.8, 1.14.4, and 1.15.4, if an attacker publishes a Flatpak application with elevated permissions, they can hide those permissions from users of the flatpak1...

WebOb: Open redirect in Location header normalization via leading C0 control / space characters

SummaryThis is a third follow-up to CVE-2024-42353 / GHSA-mg3v-6m49-jhp3and CVE-2026-44889 / GHSA-fh3h-vg37-cc95.WebOb makes the Location header absolute when it serves a redirect. To stop arelative or protocol-relative target from redirecting users off-host, it checksthe value for a URI scheme a...

PYSEC-2026-3943 WebOb: Open redirect in Location header normalization via leading C0 control / space characters

Summary This is a third follow-up to CVE-2024-42353 / GHSA-mg3v-6m49-jhp3 and CVE-2026-44889 / GHSA-fh3h-vg37-cc95. WebOb makes the Location header absolute when it serves a redirect. To stop a relative or protocol-relative target from redirecting users off-host, it checks the value for a URI...

FreeRDP: FreeRDP: HTTP Proxy Request Injection via Redirection

A flaw was found in FreeRDP. A malicious or compromised Remote Desktop Protocol RDP server can exploit this vulnerability to inject arbitrary headers or requests into an HTTP proxy CONNECT request. This occurs because FreeRDP does not properly validate control characters in the server-controlled...

PT-2026-84717

The Yoast SEO Premium WordPress plugin before 27.6.1 does not sanitize control characters from redirect origins before writing them to the site's Apache configuration file when the file-based redirect mode is enabled, and the redirect-creation endpoint is reachable by users with only Author-level...