These pages are published after PatchSiren validates generated defensive summaries against stored public CVE and source evidence.
F5 BIG-IP APM Heap-based Buffer Overflow Vulnerability debrief. This critical vulnerability in F5 BIG-IP APM requires immediate attention from defenders, with potential for heap-based buffer overflow attacks and disruption to critical infrastructure. The vulnerability affects F5 BIG-IP APM systems, which are widely used in various industries. The CVE Program and CISA have identified this vulnerability, wi [truncated]
CVE-2026-90439 is a buffer overflow in the ngx_http_v3_module module of ea-nginx. However, EasyApache 4 does not build this module, so installations are not affected. The EasyApache 4 25.83 update includes an updated ea-nginx to 1.31.6, which includes the fix for this CVE. This update also rebuilds the nginx modules, updates ea-php84 to 8.4.25 and ea-php85 to 8.5.10, and updates ea-podman. Defenders shoul [truncated]
The CVE-2026-78689 vulnerability affects NGINX JavaScript (njs) and QuickJS (qjs) engines, specifically in the XML module's namespace prefix list parser. This vulnerability can be triggered by an unauthenticated remote attacker when an affected NGINX configuration passes an externally controlled XML namespace prefix list to the xml.exclusiveC14n() method. The vulnerability may cause a denial of service on [truncated]
AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-09-02T16:17:23.407Z and has not been modified since then. The NVD entry is currently Awaiting Analysis. This injection vulnerability in NGINX Ingress Controller's configuration generator allows an authenticated attacker with write access to Ingress annotations to inject arbitrary NGINX configuration di [truncated]
AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-09-02T16:17:18.663Z and has not been modified since then. The NGINX Gateway Fabric's configuration generator component is vulnerable to injection attacks due to improper sanitization or escaping of user-supplied string values from Authentication Filter Custom Resource Definition fields (clientID, cooki [truncated]
A vulnerability exists in an undisclosed BIG-IP Configuration utility page that may allow an attacker to spoof error messages. An attacker may trick authenticated BIG-IP users into accessing malicious links and reflect a spoofed error message in the victim's BIG-IP Configuration utility web browser session. This is a control plane issue; there is no data plane exposure.
The CVE-2026-18329 vulnerability affects NGINX JavaScript (njs) and QuickJS (qjs) engines, which are components used for handling JavaScript in NGINX. This vulnerability class involves asynchronous request body processing and access-control evaluation. An unauthenticated attacker can exploit this by sending a crafted HTTP request that triggers an error condition in the access validation logic, potentially [truncated]
The ngx_http_slice_module module in NGINX Plus and NGINX Open Source is vulnerable to uninitialized memory access. This vulnerability allows unauthenticated attackers to send requests that may cause memory disclosure or NGINX worker process restarts when the slice directive and unnamed regex captures are configured or during background cache updates. The module is not enabled by default and requires the - [truncated]
AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-07-15T15:16:47.320Z and has not been modified since then. The NVD entry is currently Analyzed. NGINX Plus MQTT filter module (ngx_stream_mqtt_filter) 7 allows unauthenticated attackers to cause a heap buffer over-read leading to a worker process restart. This data plane issue affects various NGINX Plus [truncated]
The NGINX Agent config_dirs directive allows a low-privileged attacker to gain limited read and write access to files outside of the designated secure directory. This vulnerability can be configured through NGINX Instance Manager. A successful exploit may allow an attacker to cross a security boundary. The CVE record was published on 2026-07-15T15:16:47.190Z and has not been modified since then. Administr [truncated]
CVE-2026-59762 is a vulnerability in BIG-IP systems where undisclosed requests can cause an increase in memory resource utilization when an HTTP/2 profile is configured on a virtual server. This can lead to a degradation of service and potentially a denial-of-service (DoS). The issue is a data plane issue only, with no control plane exposure. A remote, unauthenticated attacker can exploit this vulnerabili [truncated]
The ngx_http_ssi_module module in NGINX Plus and NGINX Open Source is vulnerable to a use-after-free attack when Server-Side Includes (SSI), proxy_pass, and proxy_buffering off directives are configured. An unauthenticated attacker with man-in-the-middle (MITM) ability may exploit this vulnerability to cause a use-after-free in the NGINX worker process, potentially leading to limited modification of memor [truncated]
CVE-2026-52865 is a denial-of-service (DoS) vulnerability in the F5 Nginx Ingress Controller. An authenticated, remote attacker with permission to create or modify Ingress or TransportServer resources can cause the NGINX Ingress Controller process to terminate, resulting in a persistent crash loop. This control plane issue has a CVSS score of 7.1 and is classified as HIGH severity. Users of F5 Nginx Ingre [truncated]
A critical heap buffer overflow vulnerability was patched in the EasyApache 4 ea-nginx package family (nginx 1.31.3). This vulnerability, tracked as CVE-2026-42533, could allow remote code execution or a worker process denial of service. The vulnerability is located in the map directive with regular expressions. System administrators and security teams should assess exposure and apply the security hotfix [truncated]
CVE-2026-50107 is an injection vulnerability in the NGINX configuration generator component of NGINX Gateway Fabric. User-supplied string values from the NginxProxy Custom Resource Definition (CRD) access log format setting are rendered directly into NGINX configuration templates without sanitization or escaping. An authenticated attacker with permission to create or modify these CRDs may craft values tha [truncated]
An authenticated, remote attacker with permission to create or modify GRPCRoute resources can cause the NGINX Gateway Fabric control plane to terminate by sending undisclosed GRPCRoute configurations containing backendRef filters. This vulnerability exists in NGINX Gateway Fabric when configured using GRPCRoutes. The attacker must have permission to create or modify GRPCRoute resources to exploit this vulnerability.
A vulnerability was found in NGINX Open Source and NGINX Plus. The ngx_http_charset_module module can cause a heap buffer over-read when serving or proxying content through a location block with specific charset configurations. This issue allows remote, unauthenticated attackers to potentially disclose memory or cause a restart. The vulnerability has a CVSS score of 6.3 and a severity of MEDIUM. Users of [truncated]
A critical vulnerability CVE-2026-42530 was found in NGINX Open Source's HTTP/3 QUIC module. When NGINX Open Source is configured to use the HTTP/3 QUIC module, a remote unauthenticated attacker can use a specially crafted HTTP/3 session to reopen a QPACK encoder stream. This may cause a Use-after-Free in the NGINX worker process leading to a restart. Attackers can also execute code on systems with Addres [truncated]
CVE-2026-42055: EasyApache 4 25.67 updates address buffer overflow in ngx_http_proxy_v2_module and ngx_http_grpc_module of ea-nginx. This medium-severity vulnerability affects EasyApache 4 installations using ea-nginx versions prior to 1.31.2. The update to ea-nginx from v1.31.1 to v1.31.2 patches this vulnerability. Associated nginx module packages (ea-nginx-echo, ea-nginx-headers-more, ea-nginx-njs, ea- [truncated]
CVE-2026-11311 is an injection vulnerability in the NGINX configuration generator component of NGINX Gateway Fabric. User-supplied string values from Custom Resource Definitions can be rendered directly into NGINX configuration templates without sanitization or escaping. An authenticated attacker with permission to create or modify these Custom Resource Definitions may craft values that inject arbitrary N [truncated]
A vulnerability exists in the ngx_http_scgi_module and ngx_http_uwsgi_module modules of NGINX that may result in excessive memory allocation or an over-read of data. When scgi_pass or uwsgi_pass is configured, an unauthenticated attacker with man-in-the-middle (MITM) ability to control responses from an upstream server may be able to read the memory of the NGINX worker process or restart it.
A heap buffer over-read vulnerability exists in NGINX Plus and NGINX Open Source due to improper handling of charset, source_charset, and charset_map directives with proxy_pass and disabled buffering. This allows unauthenticated attackers to cause a limited disclosure of memory or a restart. The vulnerability has a CVSS score of 6.3 and a severity of MEDIUM. Affected product deployments should assess and [truncated]
CVE-2026-42930 is a high-severity vulnerability in F5 BIG-IP systems that allows authenticated attackers with the 'Administrator' role to bypass Appliance mode restrictions. This issue affects multiple BIG-IP products and versions, including those in the 16.1, 17.1, and 17.5 branches. The vulnerability has a CVSS score of 8.5, indicating high severity. Organizations should be aware of this issue and take [truncated]
PatchSiren debrief for CVE-2026-42926, a MEDIUM severity vulnerability in NGINX Open Source. The vulnerability allows an attacker to inject frame headers and payload bytes to the upstream peer when NGINX Open Source is configured to proxy HTTP/2 traffic. This can occur when proxy_http_version is set to 2 and proxy_set_body is used. Users of NGINX Open Source configured to proxy HTTP/2 traffic should be aw [truncated]
CVE-2026-42924 is a high-severity vulnerability in F5 BIG-IP products that allows authenticated attackers with the Resource Administrator or Administrator role to create SNMP configuration objects through iControl SOAP, resulting in privilege escalation. The vulnerability has a CVSS score of 8.5 and is considered HIGH. Multiple versions of BIG-IP products are affected, including 16.1.0 through 16.1.6, 17. [truncated]
CVE-2026-42919 is a high-severity vulnerability in F5 BIG-IP systems that allows authenticated attackers with administrative access to escalate privileges. A successful exploit may allow the attacker to cross a security boundary. The vulnerability affects multiple versions of BIG-IP products, including BIG-IP Access Policy Manager, BIG-IP Advanced Firewall Manager, and others. This vulnerability is partic [truncated]
CVE-2026-42406 is a high-severity vulnerability in F5 BIG-IP and BIG-IQ systems. A highly privileged, authenticated attacker with at least the Certificate Manager role can modify configuration objects to run arbitrary commands. This issue affects multiple F5 products across various versions. The CVSS score is 8.5, indicating a high level of severity.
CVE-2026-41959 is a HIGH-severity vulnerability affecting F5 BIG-IP and BIG-IQ TMOS Shell (tmsh) network diagnostics commands and BIG-IP iControl REST. An authenticated attacker may exploit this vulnerability to view the network status of destination systems. The vulnerability has a CVSS score of 7.1 and was published on May 13, 2026. Multiple versions of BIG-IP and BIG-IQ are affected, including those th [truncated]
CVE-2026-41957 is an authenticated remote code execution vulnerability in the BIG-IP and BIG-IQ Configuration utility. Defenders should assess exposure given the high CVSS score of 8.7 and the wide range of affected products. This vulnerability was made public on May 13, 2026, and last modified on June 23, 2026. The priority posture for defenders is to review and apply mitigations, especially given the hi [truncated]
CVE-2026-41956 is a high-severity vulnerability in F5 BIG-IP Traffic Management Microkernel. When a classification profile is configured on a UDP virtual server, undisclosed requests can cause the Traffic Management Microkernel (TMM) to terminate. This issue affects multiple F5 BIG-IP products and versions. The Common Vulnerability Scoring System (CVSS) score for this vulnerability is 8.7, indicating a hi [truncated]
