Nginx-UI: Unauthenticated first-boot instance claim via POST /api/install allows remote bootstrap takeover

An unauthenticated bootstrap takeover exists in nginx-ui during the initial installation window exposed by POST /api/install. When the instance is still uninitialized, POST /api/install is reachable without authentication and accepts attacker-controlled bootstrap data. The handler sets the...

EUVD-2026-27133

Nginx-UI: Authenticated settings disclosure exposes node.secret and enables trusted-node authentication abuse, backup exfiltration, and restore-based nginx-ui state rollback...

Nginx-UI: Authenticated settings disclosure exposes node.secret and enables trusted-node authentication abuse, backup exfiltration, and restore-based nginx-ui state rollback

Summary An authenticated user can call GET /api/settings and retrieve sensitive configuration values, including node.secret. The same node.secret is accepted by AuthRequired through the X-Node-Secret header or nodesecret query parameter, causing the request to be treated as authenticated via the...

GHSA-7JRR-XW9C-MJ39 Nginx-UI: Authenticated settings disclosure exposes node.secret and enables trusted-node authentication abuse, backup exfiltration, and restore-based nginx-ui state rollback

Summary An authenticated user can call GET /api/settings and retrieve sensitive configuration values, including node.secret. The same node.secret is accepted by AuthRequired through the X-Node-Secret header or nodesecret query parameter, causing the request to be treated as authenticated via the...

CVE-2026-42221

Nginx UI is a web user interface for the Nginx web server. From version 2.0.0 to before version 2.3.8, an unauthenticated network attacker can claim the initial administrator account on a fresh nginx-ui instance during the first-run setup window. The public /api/install endpoint is reachable...

CVE-2026-42223

Nginx UI is a web user interface for the Nginx web server. Prior to version 2.3.8, the GetSettings API handler api/settings/settings.go:24-65 serializes all settings structs to JSON and returns them to authenticated users. Many sensitive fields are tagged with protected:"true" - however, this tag...

CVE-2026-42238

Nginx UI is a web user interface for the Nginx web server. Prior to version 2.3.8, nginx-ui exposes a backup restore endpoint POST /api/restore that is completely unauthenticated during the first 10 minutes after process startup on any fresh installation. An unauthenticated remote attacker can...

NGINX: NGINX: Denial of Service or file modification via buffer overflow in ngx_http_dav_module

A flaw was found in NGINX. A remote attacker can exploit a buffer overflow vulnerability within the ngxhttpdavmodule module. This occurs when the NGINX configuration uses DAV module MOVE or COPY methods in conjunction with prefix location and alias directives. Successful exploitation may lead to...

NGINX: NGINX: Denial of Service via undisclosed requests when ngx_mail_auth_http_module is enabled

A flaw was found in NGINX, specifically within the ngxmailauthhttpmodule. When this module is enabled, and CRAM-MD5 or APOP authentication is active with an authentication server that permits retries, undisclosed requests can cause NGINX worker processes to terminate. This can lead to a Denial of...

nginx: NGINX: Denial of Service or Code Execution via specially crafted MP4 files

A flaw was found in NGINX's ngxhttpmp4module. This Out-of-Bounds Read/Write vulnerability occurs due to improper handling of specially crafted MP4 files. A local authenticated attacker, by supplying a malicious MP4 file, can trigger a buffer over-read or overwrite in worker memory. This can lead ...

NGINX: NGINX: Denial of Service due to memory corruption via crafted MP4 file

A flaw was found in NGINX Open Source, specifically within the ngxhttpmp4module. An attacker can exploit this memory corruption vulnerability by providing a specially crafted MP4 file. This can lead to an over-read or over-write of NGINX worker memory, causing the worker to terminate and resultin...

Important: Red Hat Security Advisory: nginx security update

An update for nginx is now available for Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is...

NGINX: NGINX: Denial of Service or file modification via buffer overflow in ngx_http_dav_module

A flaw was found in NGINX. A remote attacker can exploit a buffer overflow vulnerability within the ngxhttpdavmodule module. This occurs when the NGINX configuration uses DAV module MOVE or COPY methods in conjunction with prefix location and alias directives. Successful exploitation may lead to...

nginx: NGINX: Denial of Service or Code Execution via specially crafted MP4 files

A flaw was found in NGINX's ngxhttpmp4module. This Out-of-Bounds Read/Write vulnerability occurs due to improper handling of specially crafted MP4 files. A local authenticated attacker, by supplying a malicious MP4 file, can trigger a buffer over-read or overwrite in worker memory. This can lead ...

NGINX: NGINX: Denial of Service due to memory corruption via crafted MP4 file

A flaw was found in NGINX Open Source, specifically within the ngxhttpmp4module. An attacker can exploit this memory corruption vulnerability by providing a specially crafted MP4 file. This can lead to an over-read or over-write of NGINX worker memory, causing the worker to terminate and resultin...

NGINX: NGINX: Denial of Service via undisclosed requests when ngx_mail_auth_http_module is enabled

A flaw was found in NGINX, specifically within the ngxmailauthhttpmodule. When this module is enabled, and CRAM-MD5 or APOP authentication is active with an authentication server that permits retries, undisclosed requests can cause NGINX worker processes to terminate. This can lead to a Denial of...

Important: Red Hat Security Advisory: nginx security update

An update for nginx is now available for Red Hat Enterprise Linux 9.6 Extended Update Support. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for...

RHSA-2026:13634 Red Hat Security Advisory: nginx security update

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nginx: NGINX: Denial of Service or Code Execution via specially crafted MP4 files

A flaw was found in NGINX's ngxhttpmp4module. This Out-of-Bounds Read/Write vulnerability occurs due to improper handling of specially crafted MP4 files. A local authenticated attacker, by supplying a malicious MP4 file, can trigger a buffer over-read or overwrite in worker memory. This can lead ...

NGINX: NGINX: Denial of Service due to memory corruption via crafted MP4 file

A flaw was found in NGINX Open Source, specifically within the ngxhttpmp4module. An attacker can exploit this memory corruption vulnerability by providing a specially crafted MP4 file. This can lead to an over-read or over-write of NGINX worker memory, causing the worker to terminate and resultin...