CVE-2026-27654
ZDI-26-578: NGINX HTTP Dav Module Alias Directive Integer Underflow Remote Code Execution Vulnerability
Published Aug 13, 2026
This vulnerability allows remote attackers to execute arbitrary code on affected installations of NGINX. Authentication is not required to exploit this vulnerability. The ZDI has assigned a CVSS rating of 8.1. The following CVEs are assigned: CVE-2026-27654.
Timeline
Detection, updates, and resolution for this record.
Aug 13, 2026 · Catalog
Detected
This vulnerability allows remote attackers to execute arbitrary code on affected installations of NGINX. Authentication is not required to exploit this vulnerability. The ZDI has assigned a CVSS rating of 8.1. The following CVEs are assigned: CVE-2026-27654.
Sources
- CVE.orgCVE-2026-27654
Official CVE identifier
cve.org - FIRST EPSSCVE-2026-27654
30-day exploitation probability 25.1%
first.org - Zero Day InitiativeZDI-26-578
This vulnerability allows remote attackers to execute arbitrary code on affected installations of NGINX. Authentication is not required to exploit this vulnerability. The ZDI has assigned a CVSS rating of 8.1. The following CVEs are assigned: CVE-2026-27654.
zerodayinitiative.com