CVE-2026-27654— NGINX ngx_http_dav_module vulnerability
Get alerts for future matching vulnerabilitiesLog in to subscribe
I. Basic Information for CVE-2026-27654
Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗ Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.
Vulnerability Title
NGINX ngx_http_dav_module vulnerability
Source: NVD (National Vulnerability Database)
Vulnerability Description
NGINX Open Source and NGINX Plus have a vulnerability in the ngx_http_dav_module module that might allow an attacker to trigger a buffer overflow to the NGINX worker process; this vulnerability may result in termination of the NGINX worker process or modification of source or destination file names outside the document root. This issue affects NGINX Open Source and NGINX Plus when the configuration file uses DAV module MOVE or COPY methods, prefix location (nonregular expression location configuration), and alias directives. The integrity impact is constrained because the NGINX worker process user has low privileges and does not have access to the entire system. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
堆缓冲区溢出
Source: NVD (National Vulnerability Database)
Vulnerability Title
F5 NGINX Plus和F5 NGINX Open Source 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
F5 NGINX Plus和F5 NGINX Open Source都是美国F5公司的产品。F5 NGINX Plus是一个基于软件的应用程序交付平台。F5 NGINX Open Source是一个高性能Web服务器、反向代理服务器、负载均衡器和API网关。 F5 NGINX Plus和F5 NGINX Open Source存在安全漏洞，该漏洞源于ngx_http_dav_module模块存在缓冲区溢出，可能导致工作进程终止或修改文档根目录之外的文件名。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Shenlong Deep Dive — AI Deep Analysis
10-question deep dive: root cause, exploitation, mitigation, urgency. Read summary free, full version requires login.
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| F5 | NGINX Open Source | 1.29.0 ~ 1.29.7 | - | |
| F5 | NGINX Plus | R36 ~ R36 P3 | - |
II. Public POCs for CVE-2026-27654
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POCPremium
No public POC found.
Login to generate AI POCIII. Intelligence Information for CVE-2026-27654
请登录查看更多情报信息。
- https://my.f5.com/manage/s/article/K000160382vendor-advisory
- https://nvd.nist.gov/vuln/detail/CVE-2026-27654
Same Patch Batch · F5 · 2026-03-24 · 6 CVEs total
| CVE-2026-27784 | 7.8 HIGH | NGINX ngx_http_mp4_module vulnerability |
| CVE-2026-32647 | 7.8 HIGH | NGINX ngx_http_mp4_module vulnerability |
| CVE-2026-27651 | 7.5 HIGH | NGINX ngx_mail_auth_http_module vulnerability |
| CVE-2026-28755 | 5.4 MEDIUM | NGINX ngx_stream_ssl_module vulnerability |
| CVE-2026-28753 | 3.7 LOW | NGINX ngx_mail_proxy_module vulnerability |
IV. Related Vulnerabilities
Same product: NGINX Open Source
Same weakness: CWE-122
- CVE-2026-8261
Squirrel sqobject.cpp Load heap-based overflow - CVE-2026-8213
OSGeo gdal Grid File GDapi.c GDSDfldsrch heap-based overflow - CVE-2026-8212
OSGeo gdal SWapi.c SWSDfldsrch heap-based overflow - CVE-2026-42309
Pillow: Heap buffer overflow with nested list coordinates - CVE-2026-45130
Vim: Heap Buffer Overflow in spell file loading
V. Comments for CVE-2026-27654
No comments yet