CVE-2026-1642

The CVE-2026-1642 entry describes a vulnerability in NGINX OSS and NGINX Plus when configured to proxy to upstream TLS servers. Under a MITM position on the upstream side and conditions outside the attacker’s control, an attacker may inject plain text data into the response from an upstream proxi...

CVE-2024-7347

NGINX/Open Source and Plus are vulnerable when built with ngx_http_mp4_module and the mp4 directive is used; a specially crafted MP4 file can over-read worker memory, potentially terminating the process. Affected versions vary by distribution; several advisories indicate patches are available. Fo...

CVE-2024-24989

CVE-2024-24989 affects NGINX Plus and NGINX Open Source when configured with the HTTP/3 QUIC module. The underlying issue is in the HTTP/3 QUIC module, which can cause NGINX worker processes to terminate, yielding a denial-of-service condition. The vulnerability is tied to the HTTP/3 QUIC module ...

CVE-2026-27654

The CVE-2026-27654 entry affects NGINX Open Source and NGINX Plus via the ngx_http_dav_module. The issue is a buffer overflow that can cause the NGINX worker process to terminate or modify source/destination file names outside the document root. It is triggered when the DAV module MOVE or COPY me...

CVE-2024-24990

Summary of CVE-2024-24990 (NGINX HTTP/3 QUIC): The issue affects NGINX Plus and NGINX Open Source when the HTTP/3 QUIC module is enabled. Undisclosed requests can trigger a denial-of-service by causing NGINX worker processes to terminate. In practice, this is a data-plane DoS with no control-plan...

CVE-2024-31079

CVE-2024-31079 affects NGINX Plus and NGINX Open Source when using the HTTP/3 QUIC module (ngx_http_v3_module). The underlying issue is triggered by undisclosed HTTP/3 requests timed during the connection draining process, causing worker processes to terminate or similar impact. Exploitation stat...

CVE-2024-32760

CVE-2024-32760 affects NGINX Plus and NGINX Open Source when using the HTTP/3 QUIC module (ngx_http_v3_module). The root cause is undisclosed or unspecified HTTP/3 encoder instructions that can cause NGINX worker processes to terminate, leading to DoS or other impact. Observed impact in the conne...

CVE-2026-42945

CVE-2026-42945 affects NGINX Open Source and NGINX Plus via the ngx_http_rewrite_module when a rewrite/if/set directive is followed by a PCRE capture and a replacement containing a question mark. This can cause a heap buffer overflow in the worker process and, on systems with ASLR disabled, poten...

CVE-2026-32647

Summary: NGINX Open Source and NGNIX Plus may be affected when built with the ngx_http_mp4_module and using the mp4 directive. The issue is a vulnerability in the module that can trigger a buffer over-read or over-write in the worker memory, potentially terminating the worker or enabling code exe...

CVE-2024-35200

CVE-2024-35200 affects NGINX Plus and NGINX Open Source when the HTTP/3 QUIC module (ngx_http_v3_module) is enabled. The underlying issue causes NGINX worker processes to terminate after undisclosed HTTP/3 requests, resulting in a denial-of-service. Affected versions (per connected advisories) in...

CVE-2024-34161

CVE-2024-34161 affects NGINX Plus and NGINX Open Source when using the HTTP/3 QUIC module with MTU 4096+ without fragmentation. The root cause is in the HTTP/3 QUIC module (ngx_http_v3_module) handling QUIC packets, which can cause leakage of previously freed memory in NGINX worker processes. The...

CVE-2026-9256

NGINX Plus and NGINX Open Source expose a vulnerability in the ngx_http_rewrite_module when a rewrite directive uses distinct, overlapping PCRE captures (e.g., ^/((.*))$) and the replacement references multiple captures (e.g., $1$2) in redirects or arguments. An unauthenticated attacker can send ...

CVE-2026-42055

CVE-2026-42055 affects NGINX Plus and NGINX Open Source via the ngx_http_proxy_v2_module and ngx_http_grpc_module. A remote, unauthenticated attacker can exploit scenarios where proxy_http_version 2 or grpc_pass is used, ignore_invalid_headers is off, and large_client_header_buffers is set to mul...

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-2026-48142

CVE-2026-48142 affects the ngx_http_charset_module in NGINX Plus and NGINX Open Source. When a location block uses both source_charset utf-8 and a charset directive (e.g., charset koi8-r), remote unauthenticated attackers can trigger a heap buffer over-read in the NGINX worker process, causing me...

CVE-2026-27651

CVE-2026-27651 affects the ngx_mail_auth_http_module in NGINX Plus and NGINX Open Source. When CRAM-MD5 or APOP authentication is enabled and the authentication server indicates a retry by returning the Auth-Wait header, undisclosed requests can cause worker processes to terminate. This is the st...

CVE-2025-53859

Technical details about CVE-2025-53859 are not provided in the connected documents. The initial description notes an over-read in NGINX SMTP authentication, but no technical specifics are included here. Monitor for updates.

CVE-2026-42926

The connected F5 advisory confirms CVE-2026-42926 affects NGINX Open Source’s ngx_http_proxy_v2_module when proxy_http_version is set to 2 and proxy_set_body is used. The vulnerability allows a remote attacker to inject arbitrary HTTP/2 frame headers and payload bytes into the upstream connection...

CVE-2026-40460

CVE-2026-40460 affects NGINX Plus ngx_quic_module and NGINX Open Source when HTTP/3 QUIC is enabled. An attacker could spoof the source IP to bypass authorization or rate limiting, potentially enabling unauthorized access or DoS. Remediation per the connected advisory: upgrade to vulnerable-produ...

CVE-2026-42934

The CVE-2026-42934 entry concerns NGINX Plus and NGINX Open Source with a vulnerability in the ngx_http_charset_module. When charset, source_charset, and charset_map are configured together with proxy_pass having buffering disabled, unauthenticated attackers can trigger a heap buffer over-read in...

CVE-2026-40701

The CVE-2026-40701 entry concerns NGINX’s ngx_http_ssl_module where enabling ssl_verify_client (on/optional) with ssl_ocsp (on) or leaf resolver configurations can cause a heap-use-after-free in the NGINX worker process. Impact is limited data modification or worker restart. Affected products inc...

CVE-2026-28753

CVE-2026-28753 affects NGINX Plus and NGINX Open Source through the ngx_mail_smtp_module. The vulnerability arises from improper handling of CRLF sequences in DNS responses, which could allow an attacker-controlled DNS server to inject arbitrary headers into SMTP upstream requests, enabling poten...

CVE-2026-42946

A vulnerability CVE-2026-42946 affects the NGINX ngx_http_scgi_module and ngx_http_uwsgi_module. When scgi_pass or uwsgi_pass is configured, an unauthenticated attacker with MITM control over upstream responses may trigger excessive memory allocation or an out-of-bounds read in the NGINX worker, ...

CVE-2026-27784

The CVE-2026-27784 issue affects 32-bit builds of NGINX Open Source that are compiled with the ngx_http_mp4_module and configured to use the mp4 directive. The vulnerability arises in the 32-bit implementation of NGINX Open Source when processing a specially crafted MP4 file via the ngx_http_mp4_...

CVE-2026-28755

CVE-2026-28755 affects both NGINX Plus and NGINX Open Source via the ngx_stream_ssl_module . The vulnerability arises from improper handling of revoked certificates when ssl_verify_client is enabled and ssl_ocsp is on, causing the TLS handshake to succeed even after an OCSP revocation check ident...