F5 Nginx Open Source vulnerabilities
29 known vulnerabilities affecting f5/nginx_open_source.
Total CVEs
29
CISA KEV
0
Public exploits
1
Exploited in wild
1
Severity breakdown
HIGH12MEDIUM15LOW2
Vulnerabilities
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CVE-2026-28755P4MEDIUMCVSS 5.4≥ 0.5.13, ≤ 0.9.7≥ 1.27.2, < 1.28.3+1 more2026-03-24
CVE-2026-28755 [MEDIUM] CWE-863 CVE-2026-28755: NGINX Plus and NGINX Open Source have a vulnerability in the ngx_stream_ssl_module module due to the
NGINX Plus and NGINX Open Source have a vulnerability in the ngx_stream_ssl_module module due to the improper handling of revoked certificates when configured with the ssl_verify_client on and ssl_ocsp on directives, allowing the TLS handshake to succeed even after an OCSP check identifies the certificate as revoked.
Note: Software versions which
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CVE-2026-40701P4MEDIUMCVSS 4.8≥ 1.19.0, ≤ 1.30.0≥ 1.19.0, < 1.30.12026-05-13
CVE-2026-40701 [MEDIUM] CWE-416 CVE-2026-40701: NGINX Plus and NGINX Open Source have a vulnerability in the ngx_http_ssl_module module when the ssl
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 are configured with a resolver. With this configuration, an unauthenticated attacker can send requests along with conditions beyond
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CVE-2024-34161P4MEDIUMCVSS 5.3≥ 1.25.0, < 1.26.12024-05-29
CVE-2024-34161 [MEDIUM] CWE-416 CVE-2024-34161: When NGINX Plus or NGINX OSS are configured to use the HTTP/3 QUIC module and the network infrastruc
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 cause NGINX worker processes to leak previously freed memory.
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CVE-2024-35200P4MEDIUMCVSS 5.3≥ 1.25.0, < 1.26.12024-05-29
CVE-2024-35200 [MEDIUM] CWE-476 CVE-2024-35200: When NGINX Plus or NGINX OSS are configured to use the HTTP/3 QUIC module, undisclosed HTTP/3 reques
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.
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CVE-2024-31079P4MEDIUMCVSS 4.8≥ 1.25.0, < 1.26.12024-05-29
CVE-2024-31079 [MEDIUM] CWE-121 CVE-2024-31079: When NGINX Plus or NGINX OSS are configured to use the HTTP/3 QUIC module, undisclosed HTTP/3 reques
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. This attack requires that a request be specifically timed during the connection draining process, which the attacker has no visibility and limited influence over.
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CVE-2025-23419P4MEDIUMCVSS 4.3≥ 1.11.4, < *2025-02-05
CVE-2025-23419 [MEDIUM] CWE-863 CVE-2025-23419: When multiple server blocks are configured to share the same IP address and port, an attacker can us
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. This vulnerability arises when TLS Session Tickets https://nginx.org/en/docs/http/ngx_http_ssl_module.html#ssl_session_ticket_key are used and/or the SSL s
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CVE-2025-53859P4LOWCVSS 3.7≥ 0.7.22, < 1.29.1≥ 0.7, < 1.29.12025-08-13
CVE-2025-53859 [LOW] CWE-125 CVE-2025-53859: NGINX Open Source and NGINX Plus have a vulnerability in the ngx_mail_smtp_module that might allow a
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 server. This issue happens during the NGINX SMTP authentication process and re
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CVE-2024-7347P4MEDIUMCVSS 4.7≥ 1.5.13, < 1.26.2v1.27.0+1 more2024-08-14
CVE-2024-7347 [MEDIUM] CWE-126 CVE-2024-7347: NGINX Open Source and NGINX Plus have a vulnerability in the ngx_http_mp4_module, which might allow
NGINX Open Source and NGINX Plus have a vulnerability in the ngx_http_mp4_module, which might allow an attacker to over-read NGINX worker memory resulting in its termination, using a specially crafted mp4 file. The issue only affects NGINX if it is built with the ngx_http_mp4_module and the mp4 directive is used in the configuration file. Additionally,
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CVE-2026-28753P4LOWCVSS 3.7≥ 0.6.27, ≤ 0.9.7≥ 1.0.0, < 1.28.3+2 more2026-03-24
CVE-2026-28753 [LOW] CWE-93 CVE-2026-28753: NGINX Plus and NGINX Open Source have a vulnerability in the ngx_mail_smtp_module module due to the
NGINX Plus and NGINX Open Source have a vulnerability in the ngx_mail_smtp_module module due to the improper handling of CRLF sequences in DNS responses. This allows an attacker-controlled DNS server to inject arbitrary headers into SMTP upstream requests, leading to potential request manipulation. Note: Software versions which have reached End of Techni
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