| CVE-2026-1616 | The $uri$args concatenation in nginx configuration file present in Open Security Issue Management (OSIM) prior v2025.9.0 allows path traversal attacks via query parameters. | high | |
| CVE-2026-19670 | Malcolm's nginx Lua role-based access control (RBAC) layer decides whether an authenticated user may reach a role-restricted path (e.g. /htadmin, /auth, /admin_login, /arkime/api/esadmin, NetBox, upload endpoints) by pattern-matching the raw, percent-encoded request URI. Nginx itself, however, selects which location block actually serves the request using the percent-decoded, normalized URI. Because the RBAC check never percent-decodes its input, an authenticated low-privilege user can request an admin-only path using percent-encoding (e.g. /%68tadmin.php) and have nginx route it to the restricted location while the Lua RBAC gate evaluating the un-decoded raw string finds no matching restriction and grants access. | medium | |
| CVE-2013-0337 | The default configuration of nginx, possibly 1.3.13 and earlier, uses world-readable permissions for the (1) access.log and (2) error.log files, which allows local users to obtain sensitive information by reading the files. | medium | |
| CVE-2022-27495 | On all versions 1.3.x (fixed in 1.4.0) NGINX Service Mesh control plane endpoints are exposed to the cluster overlay network. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated | medium | |
| CVE-2020-5900 | In versions 3.0.0-3.4.0, 2.0.0-2.9.0, and 1.0.1, there is insufficient cross-site request forgery (CSRF) protections for the NGINX Controller user interface. | high | |
| CVE-2025-14727 | A vulnerability exists in NGINX Ingress Controller's nginx.org/rewrite-target annotation validation. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated. | high | |
| CVE-2012-1180 | Use-after-free vulnerability in nginx before 1.0.14 and 1.1.x before 1.1.17 allows remote HTTP servers to obtain sensitive information from process memory via a crafted backend response, in conjunction with a client request. | high | |
| CVE-2022-30535 | In versions 2.x before 2.3.0 and all versions of 1.x, An attacker authorized to create or update ingress objects can obtain the secrets available to the NGINX Ingress Controller. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated. | medium | |
| CVE-2021-23021 | The Nginx Controller 3.x before 3.7.0 agent configuration file /etc/controller-agent/agent.conf is world readable with current permission bits set to 644. | medium | |
| CVE-2021-38712 | OneNav 0.9.12 allows Information Disclosure of the onenav.db3 contents. NOTE: the vendor's recommended solution is to block the access via an NGINX configuration file. | high | |
| CVE-2020-5911 | In versions 3.0.0-3.5.0, 2.0.0-2.9.0, and 1.0.1, the NGINX Controller installer starts the download of Kubernetes packages from an HTTP URL On Debian/Ubuntu system. | high | |
| CVE-2026-2219 | It was discovered that dpkg-deb (a component of dpkg, the Debian package management system) does not properly validate the end of the data stream when uncompressing a zstd-compressed .deb archive, which may result in denial of service (infinite loop spinning the CPU). | high | |
| CVE-2014-3616 | nginx 0.5.6 through 1.7.4, when using the same shared ssl_session_cache or ssl_session_ticket_key for multiple servers, can reuse a cached SSL session for an unrelated context, which allows remote attackers with certain privileges to conduct "virtual host confusion" attacks. | medium | |
| CVE-2022-35241 | In versions 2.x before 2.3.1 and all versions of 1.x, when NGINX Instance Manager is in use, undisclosed requests can cause an increase in disk resource utilization. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated. | medium | |
| CVE-2020-12443 | BigBlueButton before 2.2.6 allows remote attackers to read arbitrary files because the presfilename (lowercase) value can be a .pdf filename while the presFilename (mixed case) value has a ../ sequence. This can be leveraged for privilege escalation via a directory traversal to bigbluebutton.properties. NOTE: this issue exists because of an ineffective mitigation to CVE-2020-12112 in which there was an attempted fix within an NGINX configuration file, without considering that the relevant part of NGINX is case-insensitive. | critical | |
| CVE-2026-9256 | NGINX Plus and NGINX Open Source have a vulnerability in the ngx_http_rewrite_module module. This vulnerability exists when a rewrite directive uses a regex pattern with distinct, overlapping Perl-Compatible Regular Expression (PCRE) captures (for example, ^/((.*))$) and a replacement string that references multiple such captures (for example, $1$2) in a redirect or arguments context. An unauthenticated attacker along with conditions beyond their control can exploit this vulnerability by sending crafted HTTP requests. This may cause a heap buffer overflow in the NGINX worker process leading to a restart. Additionally, attackers can execute code on systems with Address Space Layout Randomization (ASLR) disabled or when the attacker can bypass ASLR. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated. | critical | |
| CVE-2020-5909 | In versions 3.0.0-3.5.0, 2.0.0-2.9.0, and 1.0.1, when users run the command displayed in NGINX Controller user interface (UI) to fetch the agent installer, the server TLS certificate is not verified. | medium | |
| CVE-2012-3380 | Directory traversal vulnerability in naxsi-ui/nx_extract.py in the Naxsi module before 0.46-1 for Nginx allows local users to read arbitrary files via unspecified vectors. | medium | |
| CVE-2024-39792 | When the NGINX Plus is configured to use the MQTT pre-read module, undisclosed requests can cause an increase in memory resource utilization. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated. | high | |
| CVE-2018-8059 | The Djelibeybi configuration examples for use of NGINX in SUSE Portus 2.3, when applied to certain configurations involving Docker Compose, have a Missing SSL Certificate Validation issue because no proxy_ssl_* directives are used. | high | |
| CVE-2023-28656 | NGINX Management Suite may allow an authenticated attacker to gain access to configuration objects outside of their assigned environment. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated. | high | |
| CVE-2026-50892 | Incorrect access control in the "Let's Encrypt" certificate download endpoint of Nginx Proxy Manager v2.14.0 allows authenticated attackers to obtain the TLS private key material via a crafted GET request. | medium | |
| CVE-2026-56584 | HCL IEM was affected with the Information disclosure nginx server. It may enable attackers to identify outdated software versions and target known vulnerabilities or publicly available exploits. | medium | |
| CVE-2016-16845 | Nginx before versions 1.15.6, 1.14.1 has a vulnerability in the ngx_http_mp4_module, which might allow an attacker to cause infinite loop in a worker process, cause a worker process crash | high | |
| CVE-2024-41727 | In BIG-IP tenants running on r2000 and r4000 series hardware, or BIG-IP Virtual Edition (VEs) using Intel E810 SR-IOV NIC, undisclosed traffic can cause an increase in memory resource utilization. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated. | high | |
| CVE-2024-39809 | The Central Manager user session refresh token does not expire when a user logs out. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated | high | |
| CVE-2026-1642 | A vulnerability exists in NGINX OSS and NGINX Plus when configured to proxy to upstream Transport Layer Security (TLS) servers. An attacker with a man-in-the-middle (MITM) position on the upstream server side—along with conditions beyond the attacker's control—may be able to inject plain text data into the response from an upstream proxied server. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated. | high | |
| CVE-2026-42055 | NGINX Plus and NGINX Open Source have a vulnerability in the ngx_http_proxy_v2_module and ngx_http_grpc_module modules. This vulnerability exists when the proxy_http_version to 2 or grpc_pass directives are used to proxy HTTP/2 traffic, the ignore_invalid_headers directive is set to off, and the large_client_header_buffers directive size is larger than 2 megabytes. A remote, unauthenticated attacker, along with conditions beyond their control, could send large headers while creating an upstream request. This may cause a heap-based buffer overflow in the NGINX worker process leading to a restart. Additionally, attackers can execute code on systems with Address Space Layout Randomization (ASLR) disabled or when the attacker can bypass ASLR. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated. | critical | |
| CVE-2016-10345 | In Phusion Passenger before 5.1.0, a known /tmp filename was used during passenger-install-nginx-module execution, which could allow local attackers to gain the privileges of the passenger user. | high | |
| CVE-2026-78689 | Description NGINX JavaScript (njs) has a vulnerability in the XML module's namespace prefix list parser, reachable through the xml.exclusiveC14n() method. An unauthenticated remote attacker can trigger it when an affected NGINX configuration passes an externally controlled XML namespace prefix list to that method. Both the njs and the QuickJS (qjs) engines are affected. A crafted prefix list causes an out-of-bounds write past the end of a heap allocation. With the njs engine, which is the engine used when the js_engine directive is absent, this corrupts adjacent objects and crashes the NGINX worker. With the QuickJS engine, the same call additionally leaks the prefix list on every invocation, causing worker memory to grow across requests. The official nginxinc/nginx-saml reference implementation is affected during SAML signature verification. It reads InclusiveNamespaces/@PrefixList from an untrusted SAML message and passes it to xml.exclusiveC14n() before the signature has been verified, so a valid SAML signature is not required. A crafted SAML Response, Assertion, LogoutRequest, or LogoutResponse is sufficient. Code execution has not been demonstrated and cannot be ruled out for all platforms, as the effect of the out-of-bounds write depends on conditions beyond the attacker's control. Impact This vulnerability allows remote attackers to cause a denial of service on the NGINX system, either through repeatable worker restarts or through worker memory growth or possibly trigger code execution. There is no control plane exposure; this is a data plane issue only. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated. | critical | |
| CVE-2019-13980 | In Directus 7 API through 2.3.0, uploading of PHP files is blocked only when the Apache HTTP Server is used, leading to uploads/_/originals remote code execution with nginx. | high | |
| CVE-2020-29238 | An integer buffer overflow in the Nginx webserver of ExpressVPN Router version 1 allows remote attackers to obtain sensitive information when the server running as reverse proxy via specially crafted request. | high | |
| CVE-2022-29062 | Multiple relative path traversal vulnerabilities [CWE-23] in Fortinet FortiSOAR before 7.2.1 allows an authenticated attacker to write to the underlying filesystem with nginx permissions via crafted HTTP requests. | medium | |
| CVE-2025-12014 | The NGINX Cache Optimizer plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the 'nginxcacheoptimizer-blacklist-update' AJAX action in all versions up to, and including, 1.1. This makes it possible for authenticated attackers, with Subscriber-level access and above, to add URLs to the Exclude URLs From Dynamic Caching setting. | medium | |
| CVE-2024-39778 | When a stateless virtual server is configured on BIG-IP system with a High-Speed Bridge (HSB), undisclosed requests can cause TMM to terminate. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated. | high | |
| CVE-2026-5928 | Calling the ungetwc function on a FILE stream with wide characters encoded in a character set that has overlaps between its single byte and multi-byte character encodings, in the GNU C Library version 2.43 or earlier, may result in an attempt to read bytes before an allocated buffer, potentially resulting in unintentional disclosure of neighboring data in the heap, or a program crash. A bug in the wide character pushback implementation (_IO_wdefault_pbackfail in libio/wgenops.c) causes ungetwc() to operate on the regular character buffer (fp->_IO_read_ptr) instead of the actual wide-stream read pointer (fp->_wide_data->_IO_read_ptr). The program crash may happen in cases where fp->_IO_read_ptr is not initialized and hence points to NULL. The buffer under-read requires a special situation where the input character encoding is such that there are overlaps between single byte representations and multibyte representations in that encoding, resulting in spurious matches. The spurious match case is not possible in the standard Unicode character sets. | high | |
| CVE-2020-5865 | In versions prior to 3.3.0, the NGINX Controller is configured to communicate with its Postgres database server over unencrypted channels, making the communicated data vulnerable to interception via man-in-the-middle (MiTM) attacks. | medium | |
| CVE-2023-45132 | NAXSI is an open-source maintenance web application firewall (WAF) for NGINX. An issue present starting in version 1.3 and prior to version 1.6 allows someone to bypass the WAF when a malicious `X-Forwarded-For` IP matches `IgnoreIP` `IgnoreCIDR` rules. This old code was arranged to allow older NGINX versions to also support `IgnoreIP` `IgnoreCIDR` when multiple reverse proxies were present. The issue is patched in version 1.6. As a workaround, do not set any `IgnoreIP` `IgnoreCIDR` for older versions. | critical | |
| CVE-2021-45967 | An issue was discovered in Pascom Cloud Phone System before 7.20.x. A configuration error between NGINX and a backend Tomcat server leads to a path traversal in the Tomcat server, exposing unintended endpoints. | critical | |
| CVE-2026-78552 | The Okta Access Gateway does not apply its Lua directive restriction to the application-level custom configuration field. The field is interpolated directly into the nginx server block without inspection, resulting in execution of injected directives. | medium | |
| CVE-2016-0742 | The resolver in nginx before 1.8.1 and 1.9.x before 1.9.10 allows remote attackers to cause a denial of service (invalid pointer dereference and worker process crash) via a crafted UDP DNS response. | high | |
| CVE-2018-11747 | Previously, Puppet Discovery was shipped with a default generated TLS certificate in the nginx container. In version 1.4.0, a unique certificate will be generated on installation or the user will be able to provide their own TLS certificate for ingress. | critical | |
| CVE-2019-12938 | The Roundcube component of Analogic Poste.io 2.1.6 uses .htaccess to protect the logs/ folder, which is effective with the Apache HTTP Server but is ineffective with nginx. Attackers can read logs via the webmail/logs/sendmail URI. | medium | |
| CVE-2011-4315 | Heap-based buffer overflow in compression-pointer processing in core/ngx_resolver.c in nginx before 1.0.10 allows remote resolvers to cause a denial of service (daemon crash) or possibly have unspecified other impact via a long response. | critical | |
| CVE-2023-25803 | Roxy-WI is a Web interface for managing Haproxy, Nginx, Apache, and Keepalived servers. Versions prior to 6.3.5.0 have a directory traversal vulnerability that allows the inclusion of server-side files. This issue is fixed in version 6.3.5.0. | high | |
| CVE-2017-8301 | LibreSSL 2.5.1 to 2.5.3 lacks TLS certificate verification if SSL_get_verify_result is relied upon for a later check of a verification result, in a use case where a user-provided verification callback returns 1, as demonstrated by acceptance of invalid certificates by nginx. | medium | |
| CVE-2025-1695 | In NGINX Unit before version 1.34.2 with the Java Language Module in use, undisclosed requests can lead to an infinite loop and cause an increase in CPU resource utilization. This vulnerability allows a remote attacker to cause a degradation that can lead to a limited denial-of-service (DoS). There is no control plane exposure; this is a data plane issue only. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated. | medium | |
| CVE-2021-23055 | On version 2.x before 2.0.3 and 1.x before 1.12.3, the command line restriction that controls snippet use with NGINX Ingress Controller does not apply to Ingress objects. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated. | medium | |
| CVE-2026-45567 | Roxy-WI is a web interface for managing Haproxy, Nginx, Apache and Keepalived servers. In versions 8.2.6.4 and prior, there is an authentication bypass vulnerability via 'api' substring in URL + unauthenticated /api/gpt. At time of publication, there are no publicly available patches. | high | |
| CVE-2025-2787 | KNIME Business Hub is affected by the Ingress-nginx CVE-2025-1974 ( a.k.a IngressNightmare ) vulnerability which affects the ingress-nginx component. In the worst case a complete takeover of the Kubernetes cluster is possible. Since the affected component is only reachable from within the cluster, i.e. requires an authenticated user, the severity in the context of KNIME Business Hub is slightly lower. Besides applying the publicly known workarounds, we strongly recommend updating to one of the following versions of KNIME Business Hub: * 1.13.3 or above * 1.12.4 or above * 1.11.4 or above * 1.10.4 or above * | high | |
