CVE-2026-56434: Use After Free

NGINX Plus and NGINX Open Source have a vulnerability in the ngxhttpssimodule module. This vulnerability may exist when the Server-Side Includes SSI, proxypass, and proxybuffering off directives are configured. With this configuration, an unauthenticated attacker with man-in-the-middle MITM abili...

CVE-2026-42533: Heap-based Buffer Overflow

A vulnerability exists in NGINX Plus and NGINX Open Source when a map directive uses regex matching and a string expression references the map's regex capture variables before referencing the map output variable. Alternatively, the same result could be achieved by using a non-cacheable variable i...

CVE-2026-60005: Use of Uninitialized Resource

NGINX Plus and NGINX Open Source have a vulnerability in the ngxhttpslicemodule module. When the slice directive and unnamed regex captures are configured or when a background cache update happens, unauthenticated attackers can send requests that may cause uninitialized memory access in the NGINX...

ROS-20260714-73-0060

The vulnerability of the ngxhttpcharsetmodule module in NGINX Plus and NGINX Open Source web servers relates to the execution of operations outside of the buffer in memory. Exploiting this vulnerability can allow a malicious actor to gain unauthorized access to protected information or cause...

OESA-2026-2798 nginx security update

NGINX is a free, open-source, high-performance HTTP server and reverse proxy, as well as an IMAP/POP3 proxy server. Security Fixes: NGINX Plus and NGINX Open Source have a vulnerability in the ngxhttpproxyv2module and ngxhttpgrpcmodule modules. This vulnerability exists when the proxyhttpversion ...

ROS-20260626-73-0041

The vulnerability of the ngxhttpcharsetmodule module in NGINX Plus and NGINX Open Source web servers is related to reading beyond the buffer boundaries in memory. Exploiting this vulnerability can allow a malicious actor to compromise the confidentiality and accessibility of the protected...

BIT-NGINX-GATEWAY-2026-42530 NGINX Open-Source ngx_http_v3_module vulnerability

NGINX Open Source has a vulnerability in the ngxhttpv3module module. When NGINX Open Source is configured to use the HTTP/3 QUIC module, a remote unauthenticated attacker along with conditions beyond their control can use a specially crafted HTTP/3 session to reopen a QPACK encoder stream. This m...

BIT-NGINX-2026-42530 NGINX Open-Source ngx_http_v3_module vulnerability

NGINX Open Source has a vulnerability in the ngxhttpv3module module. When NGINX Open Source is configured to use the HTTP/3 QUIC module, a remote unauthenticated attacker along with conditions beyond their control can use a specially crafted HTTP/3 session to reopen a QPACK encoder stream. This m...

ROS-20260622-73-0042

The vulnerability of the ngxhttpmp4module in NGINX Plus and NGINX Open Source HTTP servers is related to reading beyond the buffer boundaries in memory. Exploiting this vulnerability can allow an attacker to cause service failures or execute arbitrary code...

ROS-20260622-73-0043

The vulnerability of the ngxhttpmp4module module in NGINX Open Source web servers is related to integer overflow. Exploiting this vulnerability can allow attackers to cause service failures...

ROS-20260622-73-0044

The vulnerability of the ngxmailsmtpmodule module in NGINX Plus and NGINX Open Source servers is related to the failure to take measures to neutralize CRLF sequences. Exploiting this vulnerability can allow an attacker to compromise the integrity of the protected information...

Linux Distros Unpatched Vulnerability : CVE-2026-48142

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - NGINX Plus and NGINX Open Source have a vulnerability in the ngxhttpcharsetmodule module. When content is served or proxied through a location block with both...

UBUNTU-CVE-2026-42530

NGINX Open Source has a vulnerability in the ngxhttpv3modulemodule...

UBUNTU-CVE-2026-48142

NGINX Plus and NGINX Open Source have a vulnerability in the ngxhttpcharsetmodule module. When content is served or proxied through a location block with both sourcecharset utf-8; and a charset directive for example, charset koi8-r; configured, remote, unauthenticated attackers can send requests ...

CVE-2026-42530

NGINX Open Source has a vulnerability in the ngxhttpv3module module. When NGINX Open Source is configured to use the HTTP/3 QUIC module, a remote unauthenticated attacker along with conditions beyond their control can use a specially crafted HTTP/3 session to reopen a QPACK encoder stream. This m...

CVE-2026-42530

NGINX Open Source has a vulnerability in the ngxhttpv3module module. When NGINX Open Source is configured to use the HTTP/3 QUIC module, a remote unauthenticated attacker along with conditions beyond their control can use a specially crafted HTTP/3 session to reopen a QPACK encoder stream. This m...

DEBIAN-CVE-2026-42530

NGINX Open Source has a vulnerability in the ngxhttpv3module module. When NGINX Open Source is configured to use the HTTP/3 QUIC module, a remote unauthenticated attacker along with conditions beyond their control can use a specially crafted HTTP/3 session to reopen a QPACK encoder stream. This m...

CVE-2026-42530

NGINX Open Source has a vulnerability in the ngxhttpv3module module. When NGINX Open Source is configured to use the HTTP/3 QUIC module, a remote unauthenticated attacker along with conditions beyond their control can use a specially crafted HTTP/3 session to reopen a QPACK encoder stream. This m...

CVE-2026-42530

Summary : NGINX Open Source’s ngx_http_v3_module vulnerability (CVE-2026-42530) occurs when HTTP/3 QUIC is enabled. A remote unauthenticated attacker can craft an HTTP/3 session to reopen a QPACK encoder stream, causing a Use-after-Free in the NGINX worker process and potentially triggering a res...

CVE-2026-42530

NGINX Open Source has a vulnerability in the ngxhttpv3module module. When NGINX Open Source is configured to use the HTTP/3 QUIC module, a remote unauthenticated attacker along with conditions beyond their control can use a specially crafted HTTP/3 session to reopen a QPACK encoder stream. This m...