Improper Handling Of The HTTP Connection Header

@fastify/reply-from and @fastify/http-proxy are vulnerable to Improper Handling of the HTTP Connection Header. The vulnerability is due to processing the client-supplied Connection header after proxy-added headers have been inserted, which allows an attacker to selectively remove security, routin...

CVE-2026-44437

Summary: CVE-2026-44437 affects Angular SSR before fixed versions 19.2.25, 20.3.25, 21.2.9, and 22.0.0-next.7. The vulnerability lies in the X-Forwarded-Prefix header processing: the internal validation does not properly account for URL-encoded characters (notably dots like %2e%2e), enabling enco...

SUSE-SU-2026:1818-1 Security update for python39

This update for python39 fixes the following issues: Security issues fixed: - CVE-2026-1502: HTTP client proxy tunnel headers not validated for CR/LF bsc1261969. - CVE-2026-3446: base64 decoding stops at first padded quad by default and ignores other information that could be processed bsc1261970...

Security update for python3

This update for python3 fixes the following issues: CVE-2025-13462: incorrect parsing of TarInfo when GNU long name and type AREGTYPE are combined can lead to misinterpretation of tar archives bsc1259611. CVE-2026-1502: HTTP client proxy tunnel headers not validated for CR/LF bsc1261969...

SUSE-SU-2026:1715-1 Security update for python3

This update for python3 fixes the following issues: - CVE-2025-13462: incorrect parsing of TarInfo when GNU long name and type AREGTYPE are combined can lead to misinterpretation of tar archives bsc1259611. - CVE-2026-1502: HTTP client proxy tunnel headers not validated for CR/LF bsc1261969. -...

RLSA-2026:10950 Important: python3.12 security update

Python is an interpreted, interactive, object-oriented programming language, which includes modules, classes, exceptions, very high level dynamic data types and dynamic typing. Python supports interfaces to many system calls and libraries, as well as to various windowing systems. Security Fixes:...

RHEL 8 : python3.12 (RHSA-2026:10950)

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:10950 advisory. Python is an interpreted, interactive, object-oriented programming language, which includes modules, classes, exceptions, very high level...

Important: python3.12 security update

Python is an interpreted, interactive, object-oriented programming language, which includes modules, classes, exceptions, very high level dynamic data types and dynamic typing. Python supports interfaces to many system calls and libraries, as well as to various windowing systems. Security Fixes:...

OESA-2026-2115 python3 security update

Python combines remarkable power with very clear syntax. It has modules, classes, exceptions, very high level dynamic data types, and dynamic typing. There are interfaces to many system calls and libraries, as well as to various windowing systems. New built-in modules are easily written in C or C...

EUVD-2026-22877

Fastify's connection header abuse enables stripping of proxy-added headers...

Fastify's connection header abuse enables stripping of proxy-added headers

Summary @fastify/reply-from and @fastify/http-proxy process the client's Connection header after the proxy has added its own headers via rewriteRequestHeaders. This allows attackers to retroactively strip proxy-added headers like access control or identification headers from upstream requests by...

CVE-2026-33805

@fastify/reply-from v12.6.1 and earlier and @fastify/http-proxy v11.4.3 and earlier process the client's Connection header after the proxy has added its own headers via rewriteRequestHeaders. This allows attackers to retroactively strip proxy-added headers from upstream requests by listing them i...

HTTP Header Injection

Overview @fastify/reply-from is a forward your HTTP request to another server, for fastify Affected versions of this package are vulnerable to HTTP Header Injection via improper handling of the Connection header after proxy-added headers have been set. An attacker can remove headers intended for...

CVE-2026-33805 @fastify/reply-from vulnerable to connection header abuse enabling stripping of proxy-added headers

@fastify/reply-from v12.6.1 and earlier and @fastify/http-proxy v11.4.3 and earlier process the client's Connection header after the proxy has added its own headers via rewriteRequestHeaders. This allows attackers to retroactively strip proxy-added headers from upstream requests by listing them i...

CVE-2026-33805 @fastify/reply-from vulnerable to connection header abuse enabling stripping of proxy-added headers

@fastify/reply-from v12.6.1 and earlier and @fastify/http-proxy v11.4.3 and earlier process the client's Connection header after the proxy has added its own headers via rewriteRequestHeaders. This allows attackers to retroactively strip proxy-added headers from upstream requests by listing them i...

EUVD-2026-21519

CR/LF bytes were not rejected by HTTP client proxy tunnel headers or host...

DEBIAN-CVE-2026-1502

CR/LF bytes were not rejected by HTTP client proxy tunnel headers or host...

UBUNTU-CVE-2026-1502

CR/LF bytes were not rejected by HTTP client proxy tunnel headers or host...

CVE-2026-1502

The CVE-2026-1502 entry concerns CR/LF bytes not being rejected by HTTP client proxy tunnel headers or host, as described in both the CVE record and the CVE-List entry. The connected documents indicate this is related to HTTP client proxy tunnel header validation, without providing specific affec...

PSF-2026-15

CR/LF bytes were not rejected by HTTP client proxy tunnel headers or host...