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Nginx vulnerabilities

nginx open source and NGINX Plus. 549 published CVES affecting Nginx, from public sources (CVE.org, NVD, CISA KEV, FIRST EPSS, OSV).

Total
549
Critical
82
High
248
Medium
172
Low
14
Unscored
33
CISA KEV
1
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Latest Nginx CVEs

Newest publication first · page 11 of 22

  1. MediumCVSS 5.5 EPSS 0.30%

    In the Linux kernel, the following vulnerability has been resolved: net/smc: Reset connection when trying to use SMCRv2 fails. We found a crash when using SMCRv2 with 2 Mellanox ConnectX-4. It can be reproduced by: smc_run nginx smc_run wrk -t 32 -c 500 -d 30 http://<ip>:<port> B...

  2. HighCVSS 8.8 EPSS 0.43%

    The CBIS/NCS Manager API is vulnerable to an authentication bypass. By sending a specially crafted HTTP header, an unauthenticated user can gain unauthorized access to API functions. This flaw allows attackers to reach restricted or sensitive endpoints of the HTTP API without pro...

  3. HighCVSS 7.7

    Sending AWS chunk data with no Content-Length HTTP header causes the panic, every time. Reproduction Setup versity server running on port 7071, no SSL (for ease of packet tracing with tshark). Problem can be reproduced with or without SSL on the versity end. Use nginx to reverse...

  4. MediumCVSS 6.5 EPSS 0.27%

    nginx-defender is a high-performance, enterprise-grade Web Application Firewall (WAF) and threat detection system engineered for modern web infrastructure. This is a configuration vulnerability affecting nginx-defender deployments. Example configuration files config.yaml and dock...

  5. MediumCVSS 5.3 EPSS 0.41%

    A CORS misconfiguration in Nginx Proxy Manager v2.12.3 allows unauthorized domains to access sensitive data, particularly JWT tokens, due to improper validation of the Origin header. This misconfiguration enables attackers to intercept tokens using a simple browser script and exf...

  6. MediumCVSS 6.3 EPSS 0.45%

    NGINX Open Source and NGINX Plus have a vulnerability in the ngx_mail_smtp_module that might allow an unauthenticated attacker to over-read NGINX SMTP authentication process memory; as a result, the server side may leak arbitrary bytes sent in a request to the authentication serv...

  7. MediumCVSS 6.5 EPSS 0.39%

    ModSecurity is an open source, cross platform web application firewall (WAF) engine for Apache, IIS and Nginx. In versions 2.9.8 to before 2.9.11, an empty XML tag can cause a segmentation fault. If SecParseXmlIntoArgs is set to On or OnlyArgs, and the request type is application...

  8. HighCVSS 7.5 EPSS 0.65%

    Lychee is a free photo-management tool. In versions starting from 6.6.6 to before 6.6.10, an attacker can leak local files including environment variables, nginx logs, other user's uploaded images, and configuration secrets due to a path traversal exploit in SecurePathController....

  9. HighCVSS 7.5 EPSS 0.87%

    ModSecurity is an open source, cross platform web application firewall (WAF) engine for Apache, IIS and Nginx. Versions prior to 2.9.10 contain a denial of service vulnerability similar to GHSA-859r-vvv8-rm8r/CVE-2025-47947. The sanitiseArg (and sanitizeArg - this is the same act...

  10. MediumCVSS 5.1 EPSS 0.12%

    SummaryThis advisory addresses a security vulnerability in Mautic where sensitive .env configuration files may be directly accessible via a web browser. This exposure could lead to the disclosure of sensitive information, including database credentials, API keys, and other critic...

  11. HighCVSS 7.5 EPSS 0.60%

    ModSecurity is an open source, cross platform web application firewall (WAF) engine for Apache, IIS and Nginx. Versions up to and including 2.9.8 are vulnerable to denial of service in one special case (in stable released versions): when the payload's content type is application/...

  12. MediumCVSS 5.3 EPSS 0.46%

    The Open edX Platform is a learning management platform. Prior to commit 6740e75c0fdc7ba095baf88e9f5e4f3e15cfd8ba, edxapp has no built-in protection against downloading the python_lib.zip asset from courses, which is a concern since it often contains custom grading code or answer...

  13. HighCVSS 7.5 EPSS 1.2% PoC

    Rack is a modular Ruby web server interface. Prior to versions 2.2.14, 3.0.16, and 3.1.14, Rack::QueryParser parses query strings and application/x-www-form-urlencoded bodies into Ruby data structures without imposing any limit on the number of parameters, allowing attackers to s...

  14. MediumCVSS 5.5 EPSS 0.48%

    In the Linux kernel, the following vulnerability has been resolved: net/smc: fix NULL sndbuf_desc in smc_cdc_tx_handler() When performing a stress test on SMC-R by rmmod mlx5_ib driver during the wrk/nginx test, we found that there is a probability of triggering a panic while ter...

Sources: CVE.org, NVD, CISA KEV, FIRST EPSS, OSV and public exploit-reference metadata. Product matching comes from the published CVE records. A proof-of-concept means public code exists; it is not evidence of exploitation.