Use-after-free in HTTP/3

Use-after-free in HTTP/3 Severity: major CVE-2026-42530 Not vulnerable: 1.31.2+ Vulnerable: 1.31.0-1.31.1...

Buffer overread in the ngx_http_charset_module

Buffer overread in the ngxhttpcharsetmodule Severity: low CVE-2026-48142 Not vulnerable: 1.31.2+, 1.30.3+ Vulnerable: 0.3.50-1.31.1...

Buffer overflow in the ngx_http_proxy_v2_module and ngx_http_grpc_module

Buffer overflow in the ngxhttpproxyv2module and ngxhttpgrpcmodule Severity: medium CVE-2026-42055 Not vulnerable: 1.31.2+, 1.30.3+ Vulnerable: 1.13.10-1.31.1...

Buffer overflow in the ngx_http_rewrite_module

Buffer overflow in the ngxhttprewritemodule Severity: medium CVE-2026-9256 Not vulnerable: 1.31.1+, 1.30.2+ Vulnerable: 0.1.17-1.31.0...

HTTP/2 request injection in the ngx_http_proxy_module

HTTP/2 request injection in the ngxhttpproxymodule Severity: medium CVE-2026-42926 Not vulnerable: 1.31.0+, 1.30.1+ Vulnerable: 1.29.4-1.30.0...

HTTP/3 address spoofing

HTTP/3 address spoofing Severity: medium CVE-2026-40460 Not vulnerable: 1.31.0+, 1.30.1+ Vulnerable: 1.25.0-1.30.0...

Buffer overread in the ngx_http_charset_module

Buffer overread in the ngxhttpcharsetmodule Severity: low CVE-2026-42934 Not vulnerable: 1.31.0+, 1.30.1+ Vulnerable: 0.3.50-1.30.0...

Buffer overread in the ngx_http_scgi_module and ngx_http_uwsgi_module

Buffer overread in the ngxhttpscgimodule and ngxhttpuwsgimodule Severity: medium CVE-2026-42946 Not vulnerable: 1.31.0+, 1.30.1+ Vulnerable: 0.8.42-1.30.0...

Buffer overflow in the ngx_http_rewrite_module

Buffer overflow in the ngxhttprewritemodule Severity: medium CVE-2026-42945 Not vulnerable: 1.31.0+, 1.30.1+ Vulnerable: 0.6.27-1.30.0...

resolver use-after-free in OCSP

resolver use-after-free in OCSP Severity: medium CVE-2026-40701 Not vulnerable: 1.31.0+, 1.30.1+ Vulnerable: 1.19.0-1.30.0...

NULL pointer dereference while using CRAM-MD5 or APOP

NULL pointer dereference while using CRAM-MD5 or APOP Severity: low CVE-2026-27651 Not vulnerable: 1.29.7+, 1.28.3+ Vulnerable: 0.5.15-1.29.6...

Buffer overflow in ngx_http_dav_module

Buffer overflow in ngxhttpdavmodule Severity: medium CVE-2026-27654 Not vulnerable: 1.29.7+, 1.28.3+ Vulnerable: 0.5.13-1.29.6...

OCSP result bypass in stream

OCSP result bypass in stream Severity: medium CVE-2026-28755 Not vulnerable: 1.29.7+, 1.28.3+ Vulnerable: 1.27.2-1.29.6...

Injection in auth_http and XCLIENT

Injection in authhttp and XCLIENT Severity: medium CVE-2026-28753 Not vulnerable: 1.29.7+, 1.28.3+ Vulnerable: 0.6.27-1.29.6...

Buffer overflow in the ngx_http_mp4_module

Buffer overflow in the ngxhttpmp4module Severity: medium CVE-2026-27784 Not vulnerable: 1.29.7+, 1.28.3+ Vulnerable: 1.1.19-1.29.6...

Buffer overflow in the ngx_http_mp4_module

Buffer overflow in the ngxhttpmp4module Severity: medium CVE-2026-32647 Not vulnerable: 1.29.7+, 1.28.3+ Vulnerable: 1.1.19-1.29.6...

SSL upstream injection

SSL upstream injection Severity: medium CVE-2026-1642 Not vulnerable: 1.29.5+, 1.28.2+ Vulnerable: 1.3.0-1.29.4...

Buffer overread in the ngx_mail_smtp_module

Buffer overread in the ngxmailsmtpmodule Severity: low CVE-2025-53859 Not vulnerable: 1.29.1+ Vulnerable: 0.7.22-1.29.0...

SSL session reuse vulnerability

SSL session reuse vulnerability Severity: medium CVE-2025-23419 Not vulnerable: 1.27.4+, 1.26.3+ Vulnerable: 1.11.4-1.27.3...

Buffer overread in the ngx_http_mp4_module

Buffer overread in the ngxhttpmp4module Severity: low CVE-2024-7347 Not vulnerable: 1.27.1+, 1.26.2+ Vulnerable: 1.5.13-1.27.0...

NULL pointer dereference in HTTP/3

NULL pointer dereference in HTTP/3 Severity: medium CVE-2024-35200 Not vulnerable: 1.27.0+, 1.26.1+ Vulnerable: 1.25.0-1.25.5, 1.26.0...

Memory disclosure in HTTP/3

Memory disclosure in HTTP/3 Severity: medium CVE-2024-34161 Not vulnerable: 1.27.0+, 1.26.1+ Vulnerable: 1.25.0-1.25.5, 1.26.0...

Buffer overwrite in HTTP/3

Buffer overwrite in HTTP/3 Severity: medium CVE-2024-32760 Not vulnerable: 1.27.0+, 1.26.1+ Vulnerable: 1.25.0-1.25.5, 1.26.0...

Stack overflow and use-after-free in HTTP/3

Stack overflow and use-after-free in HTTP/3 Severity: medium CVE-2024-31079 Not vulnerable: 1.27.0+, 1.26.1+ Vulnerable: 1.25.0-1.25.5, 1.26.0...

Use-after-free in HTTP/3

Use-after-free in HTTP/3 Severity: major CVE-2024-24990 Not vulnerable: 1.25.4+ Vulnerable: 1.25.0-1.25.3...

NULL pointer dereference in HTTP/3

NULL pointer dereference in HTTP/3 Severity: major CVE-2024-24989 Not vulnerable: 1.25.4+ Vulnerable: 1.25.3...

Memory disclosure in the ngx_http_mp4_module

Memory disclosure in the ngxhttpmp4module Severity: medium CVE-2022-41742 Not vulnerable: 1.23.2+, 1.22.1+ Vulnerable: 1.1.3-1.23.1, 1.0.7-1.0.15...

Memory corruption in the ngx_http_mp4_module

Memory corruption in the ngxhttpmp4module Severity: medium CVE-2022-41741 Not vulnerable: 1.23.2+, 1.22.1+ Vulnerable: 1.1.3-1.23.1, 1.0.7-1.0.15...

1-byte memory overwrite in resolver

1-byte memory overwrite in resolver Severity: medium CVE-2021-23017 Not vulnerable: 1.21.0+, 1.20.1+ Vulnerable: 0.6.18-1.20.0...

Excessive memory usage in HTTP/2 with zero length headers

Excessive memory usage in HTTP/2 with zero length headers Severity: low CVE-2019-9516 Not vulnerable: 1.17.3+, 1.16.1+ Vulnerable: 1.9.5-1.17.2...

Excessive CPU usage in HTTP/2 with priority changes

Excessive CPU usage in HTTP/2 with priority changes Severity: low CVE-2019-9513 Not vulnerable: 1.17.3+, 1.16.1+ Vulnerable: 1.9.5-1.17.2...

Excessive CPU usage in HTTP/2 with small window updates

Excessive CPU usage in HTTP/2 with small window updates Severity: medium CVE-2019-9511 Not vulnerable: 1.17.3+, 1.16.1+ Vulnerable: 1.9.5-1.17.2...

Excessive CPU usage in HTTP/2

Excessive CPU usage in HTTP/2 Severity: low CVE-2018-16844 Not vulnerable: 1.15.6+, 1.14.1+ Vulnerable: 1.9.5-1.15.5...

Excessive memory usage in HTTP/2

Excessive memory usage in HTTP/2 Severity: low CVE-2018-16843 Not vulnerable: 1.15.6+, 1.14.1+ Vulnerable: 1.9.5-1.15.5...

Memory disclosure in the ngx_http_mp4_module

Memory disclosure in the ngxhttpmp4module Severity: medium CVE-2018-16845 Not vulnerable: 1.15.6+, 1.14.1+ Vulnerable: 1.1.3-1.15.5, 1.0.7-1.0.15...

Integer overflow in the range filter

Integer overflow in the range filter Severity: medium CVE-2017-7529 Not vulnerable: 1.13.3+, 1.12.1+ Vulnerable: 0.5.6-1.13.2...

NULL pointer dereference while writing client request body

NULL pointer dereference while writing client request body Severity: medium CVE-2016-4450 Not vulnerable: 1.11.1+, 1.10.1+ Vulnerable: 1.3.9-1.11.0...

Use-after-free during CNAME response processing in resolver

Use-after-free during CNAME response processing in resolver Severity: medium CVE-2016-0746 Not vulnerable: 1.9.10+, 1.8.1+ Vulnerable: 0.6.18-1.9.9...

Invalid pointer dereference in resolver

Invalid pointer dereference in resolver Severity: medium CVE-2016-0742 Not vulnerable: 1.9.10+, 1.8.1+ Vulnerable: 0.6.18-1.9.9...

Insufficient limits of CNAME resolution in resolver

Insufficient limits of CNAME resolution in resolver Severity: medium CVE-2016-0747 Not vulnerable: 1.9.10+, 1.8.1+ Vulnerable: 0.6.18-1.9.9...

STARTTLS command injection

STARTTLS command injection Severity: medium CVE-2014-3556 Not vulnerable: 1.7.4+, 1.6.1+ Vulnerable: 1.5.6-1.7.3...

SSL session reuse vulnerability

SSL session reuse vulnerability Severity: medium CVE-2014-3616 Not vulnerable: 1.7.5+, 1.6.2+ Vulnerable: 0.5.6-1.7.4...

SPDY memory corruption

SPDY memory corruption Severity: major CVE-2014-0088 Not vulnerable: 1.5.11+ Vulnerable: 1.5.10...

SPDY heap buffer overflow

SPDY heap buffer overflow Severity: major CVE-2014-0133 Not vulnerable: 1.5.12+, 1.4.7+ Vulnerable: 1.3.15-1.5.11...

Request line parsing vulnerability

Request line parsing vulnerability Severity: medium CVE-2013-4547 Not vulnerable: 1.5.7+, 1.4.4+ Vulnerable: 0.8.41-1.5.6...

Memory disclosure with specially crafted HTTP backend responses

Memory disclosure with specially crafted HTTP backend responses Severity: medium CVE-2013-2070 Not vulnerable: 1.5.0+, 1.4.1+, 1.2.9+ Vulnerable: 1.1.4-1.2.8, 1.3.9-1.4.0...

Stack-based buffer overflow with specially crafted request

Stack-based buffer overflow with specially crafted request Severity: major CVE-2013-2028 Not vulnerable: 1.5.0+, 1.4.1+ Vulnerable: 1.3.9-1.4.0...

Vulnerabilities with Windows directory aliases

Vulnerabilities with Windows directory aliases Severity: medium CVE-2011-4963 Not vulnerable: 1.3.1+, 1.2.1+ Vulnerable: nginx/Windows 0.7.52-1.3.0...

Buffer overflow in the ngx_http_mp4_module

Buffer overflow in the ngxhttpmp4module Severity: major CVE-2012-2089 Not vulnerable: 1.1.19+, 1.0.15+ Vulnerable: 1.1.3-1.1.18, 1.0.7-1.0.14...

Memory disclosure with specially crafted backend responses

Memory disclosure with specially crafted backend responses Severity: major CVE-2012-1180 Not vulnerable: 1.1.17+, 1.0.14+ Vulnerable: 0.1.0-1.1.16...