Priority CRITICAL 90KEV
The HTTP/2 protocol allows a denial of service (server resource consumption) because request cancellation can reset many streams quickly, as exploited in the wild in August through October 2023.
CVSS 3.1HIGH 7.5· Network · No auth · No interaction · EPSS 0.99999 · Published 2023-10-10 · Partial fix · 1.28.0, 0.17.0 +9 CWE-400
Priority HIGH 78
NGINX Plus and NGINX Open Source have a vulnerability in the ngx_http_rewrite_module module.
CVSS 4.0CRITICAL 9.2· Network · No auth · No interaction · EPSS 0.68047 · Published 2026-05-13 · Fixed in R37, R36 P4 +3 CWE-122
Priority HIGH 75
A vulnerability exists in NGINX Plus and NGINX Open Source when a map directive uses regex matching and a string expression references the map's regex capture variables before referencing the map output variable.
CVSS 4.0CRITICAL 9.2· Network · No auth · No interaction · EPSS 0.06296 · Published 2026-07-15 · Partial fix · 37.0.3.1, R36 P7 +2 CWE-122
Priority HIGH 66
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…
CVSS 4.0HIGH 8.8· Network · No auth · No interaction · EPSS 0.25942 · Published 2026-03-24 · Fixed in 1.29.7, 1.28.3 +3 CWE-122
Priority MEDIUM 55
NGINX Plus and NGINX Open Source have a vulnerability in the ngx_http_rewrite_module module.
CVSS 4.0CRITICAL 9.2· Network · No auth · No interaction · EPSS 0.10856 · Published 2026-05-22 · Partial fix · 37.0.1.1, R36 P5 +3 CWE-122
Priority MEDIUM 51
NGINX Plus and NGINX Open Source have a vulnerability in the ngx_http_proxy_v2_module and ngx_http_grpc_module modules.
CVSS 4.0CRITICAL 9.2· Network · No auth · No interaction · EPSS 0.06537 · Published 2026-06-17 · Fixed in 1.31.2, 1.30.3 +2 CWE-122
Priority MEDIUM 45
NGINX Plus and NGINX Open Source have a vulnerability in the ngx_http_slice_module module.
CVSS 4.0HIGH 8.8· Network · No auth · No interaction · EPSS 0.0074 · Published 2026-07-15 · Partial fix · 37.0.3.1, R36 P7 +2 CWE-908
Priority MEDIUM 45
When the ngx_mail_auth_http_module module is enabled on NGINX Plus or NGINX Open Source, undisclosed requests can cause worker processes to terminate.
CVSS 4.0HIGH 8.7· Network · No auth · No interaction · EPSS 0.00955 · Published 2026-03-24 · Fixed in 1.29.7, 1.28.3 +3 CWE-476
Priority MEDIUM 45
When the NGINX Plus is configured to use the MQTT pre-read module, undisclosed requests can cause an increase in memory resource utilization.
CVSS 4.0HIGH 8.7· Network · No auth · No interaction · EPSS 0.00628 · Published 2024-08-14 · No fix listed CWE-825
Priority MEDIUM 41
NGINX Open Source and NGINX Plus have a vulnerability in the ngx_http_mp4_module module, which might allow an attacker to trigger a buffer over-read or over-write to the NGINX worker memory resulting in its termination o…
CVSS 4.0HIGH 8.5· Local · Low privileges · No interaction · EPSS 0.00934 · Published 2026-03-24 · Partial fix · 1.29.7, 1.28.3 +3 CWE-125
Priority MEDIUM 41
When NGINX Plus or NGINX OSS are configured to use the HTTP/3 QUIC module, undisclosed requests can cause NGINX worker processes to terminate.
CVSS 3.1HIGH 7.5· Network · No auth · No interaction · EPSS 0.00907 · Published 2024-02-14 · Fixed in R31 P1, R30 P2 +1 CWE-416
Priority MEDIUM 41
When NGINX Plus or NGINX OSS are configured to use the HTTP/3 QUIC module, undisclosed requests can cause NGINX worker processes to terminate.
CVSS 3.1HIGH 7.5· Network · No auth · No interaction · EPSS 0.01061 · Published 2024-02-14 · Fixed in R31 P1, 1.25.4 CWE-476
Priority LOW 38
A vulnerability exists in the ngx_http_scgi_module and ngx_http_uwsgi_module modules that may result in excessive memory allocation or an over-read of data.
CVSS 4.0HIGH 8.3· Network · No auth · No interaction · EPSS 0.00932 · Published 2026-05-13 · Partial fix · R37, R36 P4 +3 CWE-789
Priority LOW 37
NGINX Plus and NGINX Open Source have a vulnerability in the ngx_http_ssi_module module.
CVSS 4.0HIGH 8.3· Network · No auth · No interaction · EPSS 0.00486 · Published 2026-07-15 · Partial fix · 37.0.3.1, R36 P7 +2 CWE-416
Priority LOW 37
When NGINX Plus or NGINX Open Source are configured to use the HTTP/3 QUIC module, an attacker may be able to spoof their source IP address allowing for bypass of authorization or bypass of rate limiting.
CVSS 4.0MEDIUM 6.9· Network · No auth · No interaction · EPSS 0.00373 · Published 2026-05-13 · Partial fix · R37, R36 P4 +3 CWE-290
Priority LOW 36
A vulnerability exists in NGINX OSS and NGINX Plus when configured to proxy to upstream Transport Layer Security (TLS) servers.
CVSS 4.0HIGH 8.2· Network · No auth · No interaction · EPSS 0.0038 · Published 2026-02-04 · Partial fix · 1.29.5, R36 P2 +2 CWE-349
Priority LOW 36
When NGINX Plus or NGINX OSS are configured to use the HTTP/3 QUIC module, undisclosed HTTP/3 encoder instructions can cause NGINX worker processes to terminate or cause or other potential impact.
CVSS 3.1MEDIUM 6.5· Network · No auth · No interaction · EPSS 0.00864 · Published 2024-05-29 · Fixed in 1.26.1, R32 CWE-787
Priority LOW 32
When NGINX Plus or NGINX OSS are configured to use the HTTP/3 QUIC module, undisclosed HTTP/3 requests can cause NGINX worker processes to terminate.
CVSS 3.1MEDIUM 5.3· Network · No auth · No interaction · EPSS 0.00934 · Published 2024-05-29 · Fixed in 1.26.1, R32 CWE-476
Priority LOW 32
When NGINX Plus or NGINX OSS are configured to use the HTTP/3 QUIC module and the network infrastructure supports a Maximum Transmission Unit (MTU) of 4096 or greater without fragmentation, undisclosed QUIC packets can c…
CVSS 3.1MEDIUM 5.3· Network · No auth · No interaction · EPSS 0.00867 · Published 2024-05-29 · Fixed in 1.26.1, R32 CWE-416
Priority LOW 32
NGINX Plus before versions R27 P1 and R26 P1 have a vulnerability in the module ngx_http_hls_module that might allow a local attacker to corrupt NGINX worker memory, resulting in its crash or potential other impact using…
CVSS 3.1HIGH 7.0· Local · Low privileges · No interaction · EPSS 0.0023 · Published 2022-10-19 · Fixed in R27-p1, R26-p1 CWE-787
Priority LOW 30
When NGINX Plus or NGINX OSS are configured to use the HTTP/3 QUIC module, undisclosed HTTP/3 requests can cause NGINX worker processes to terminate or cause other potential impact.
CVSS 3.1MEDIUM 4.8· Network · No auth · No interaction · EPSS 0.00888 · Published 2024-05-29 · Fixed in 1.26.1, R32 CWE-121
Priority LOW 29
NGINX Plus and NGINX Open Source have a vulnerability in the ngx_http_charset_module module.
CVSS 4.0MEDIUM 6.3· Network · No auth · No interaction · EPSS 0.00684 · Published 2026-06-17 · Partial fix · 1.31.2, 1.30.3 +2 CWE-125
Priority LOW 29
NGINX Plus and NGINX Open Source have a vulnerability in the ngx_http_charset_module module.
CVSS 4.0MEDIUM 6.3· Network · No auth · No interaction · EPSS 0.00731 · Published 2026-05-13 · Partial fix · R37, R36 P4 +3 CWE-125
Priority LOW 29
NGINX Plus and NGINX Open Source have a vulnerability in the ngx_http_ssl_module module when the ssl_verify_client directive is set to "on" or "optional," and the ssl_ocsp directive is set to "on" or the leaf parameters…
CVSS 4.0MEDIUM 6.3· Network · No auth · No interaction · EPSS 0.0069 · Published 2026-05-13 · Partial fix · R37, R36 P4 +3 CWE-416
Priority LOW 29
When multiple server blocks are configured to share the same IP address and port, an attacker can use session resumption to bypass client certificate authentication requirements on these servers.
CVSS 4.0MEDIUM 5.3· Network · Low privileges · No interaction · EPSS 0.02795 · Published 2025-02-05 · Partial fix CWE-863
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