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Nginx

Vendor security scorecard – 94 CVEs in the selected period

Period: 30d 90d 6m 1y All
Risk 440
94
CVEs
16
Critical
52
High
0
KEV
9
PoC
14
Unpatched C/H
80.9%
Patch Rate
0.2%
Avg EPSS

Severity Breakdown

CRITICAL
16
HIGH
52
MEDIUM
22
LOW
2

Monthly CVE Trend

Top Risky CVEs

CVE Summary Severity CVSS EPSS Priority Signals
CVE-2026-27944 Unauthenticated backup download and RCE in Nginx UI before 2.3.3. EPSS 1.0%. PoC available. CRITICAL 9.8 1.0% 70
PoC
CVE-2026-33032 Remote unauthenticated nginx service takeover in nginx-ui's MCP integration allows network attackers to create, modify, or delete nginx configuration files and trigger automatic reloads without authentication. The /mcp_message endpoint lacks authentication middleware while exposing the same MCP tool handlers as the protected /mcp endpoint, and the IP whitelist defaults to empty (allow-all). Attackers can inject malicious server blocks to intercept credentials, exfiltrate backend topology, or crash nginx with invalid configs. CVSS 9.8 (Critical) with network attack vector, no authentication required, and high impact across confidentiality, integrity, and availability. No public exploit identified at time of analysis, though detailed proof-of-concept HTTP request provided in advisory. CRITICAL 9.8 0.1% 69
PoC No patch
CVE-2026-42945 Heap buffer overflow in NGINX Plus and NGINX Open Source ngx_http_rewrite_module allows remote attackers to crash worker processes and potentially execute code on systems without ASLR. The vulnerability requires specific rewrite directive configurations using PCRE captures with question marks in replacement strings, combined with attacker-crafted HTTP requests and conditions beyond the attacker's control. F5 has released patches addressing this critical flaw. EPSS data unavailable; no KEV listing or public exploit identified at time of analysis, though the specific configuration requirements and dependency on external conditions likely limit widespread exploitation despite the 9.2 CVSS score. CRITICAL 9.2 0.2% 66
PoC
CVE-2026-22265 Authenticated command injection in Roxy-WI versions prior to 8.2.8.2 enables attackers to execute arbitrary system commands through improper sanitization of the grep parameter in log viewing functionality. Public exploit code exists for this vulnerability, affecting users managing HAProxy, Nginx, Apache, and Keepalived servers through the web interface. A patch is available in version 8.2.8.2 and later. HIGH 7.5 0.2% 58
PoC
CVE-2026-42220 nginx-ui prior to version 2.3.8 exposes sensitive configuration values including node.secret via an authenticated GET /api/settings endpoint, allowing an authenticated user to retrieve the shared authentication secret and subsequently impersonate the init administrative user by sending requests with the stolen node.secret via the X-Node-Secret header or node_secret query parameter. This enables privilege escalation and full administrative access to the Nginx configuration interface without additional authentication. MEDIUM 6.5 0.0% 53
PoC
CVE-2026-33494 Ory Oathkeeper, an identity and access proxy, contains an authorization bypass vulnerability via HTTP path traversal that allows attackers to access protected resources without authentication. The vulnerability affects Ory Oathkeeper installations where the software uses un-normalized paths for rule matching, enabling requests like '/public/../admin/secrets' to bypass authentication requirements. With a CVSS score of 10.0 (Critical) and network-based exploitation requiring no privileges or user interaction, this represents a severe authentication bypass, though no current EPSS score or KEV listing indicates limited evidence of active exploitation at this time. CRITICAL 10.0 0.0% 50
CVE-2026-33502 An unauthenticated server-side request forgery (SSRF) vulnerability exists in AVideo's Live plugin test.php endpoint that allows remote attackers to force the server to send HTTP requests to arbitrary URLs. The vulnerability affects AVideo installations with the Live plugin enabled and can be exploited to probe internal network services, access cloud metadata endpoints, and retrieve content from internal HTTP resources. A proof-of-concept has been published demonstrating localhost service enumeration, and the vulnerability requires no authentication or user interaction to exploit. CRITICAL 9.3 3.0% 50
CVE-2026-23837 MyTube self-hosted video downloader has an authorization bypass (CVSS 9.8) that allows unauthenticated access to administrative functions in versions 1.7.65 and prior. CRITICAL 9.8 0.3% 49
CVE-2026-33026 Remote authenticated attackers can achieve arbitrary command execution on nginx-ui v2.3.3 servers by manipulating encrypted backup archives during restoration. The vulnerability stems from a circular trust model where backup integrity metadata is encrypted using the same AES key provided to clients, allowing attackers to decrypt backups, inject malicious configuration (including command execution directives), recompute valid hashes, and re-encrypt the archive. The restore process accepts tampered backups despite hash verification warnings. Publicly available exploit code exists with detailed proof-of-concept demonstrating configuration injection leading to arbitrary command execution. Vendor-released patch available in nginx-ui v2.3.4. This represents a regression from GHSA-g9w5-qffc-6762, which addressed backup access control but not the underlying cryptographic design flaw. CRITICAL 9.4 0.0% 47
CVE-2026-8430 SPIP versions prior to 4.4.14 contain a remote code execution vulnerability in the public space that is limited to certain nginx configurations, allow CRITICAL 9.2 0.2% 46
CVE-2026-8711 Heap buffer overflow in F5 NGINX JavaScript (njs) module versions 0.9.4 through 0.9.8 allows unauthenticated remote attackers to crash NGINX worker processes, with potential remote code execution on hosts where ASLR is disabled. Exploitation requires the deployment to use the js_fetch_proxy directive with at least one client-controlled NGINX variable (such as $http_*, $arg_*, or $cookie_*) and a location that invokes ngx.fetch(). No public exploit identified at time of analysis, but a vendor patch is available and the CVSS 4.0 base score of 9.2 reflects the high impact across confidentiality, integrity, and availability. CRITICAL 9.2 0.2% 46
CVE-2026-34759 Authentication bypass in OneUptime notification API endpoints allows unauthenticated remote attackers to manipulate Twilio account resources via missing authorization middleware. Affects all versions prior to 10.0.42. Attackers can purchase phone numbers on victim Twilio accounts and delete configured alerting numbers by exploiting unprotected /notification/ endpoints, using leaked projectId values from public Status Page APIs. No public exploit identified at time of analysis, though attack complexity is rated high (CVSS AC:H) and proof-of-concept details are available in the GitHub security advisory. CRITICAL 9.2 0.1% 46
CVE-2026-40575 ### Impact A configuration-dependent authentication bypass exists in OAuth2 Proxy. Deployments are affected when all of the following are true: * O CRITICAL 9.1 0.1% 46
CVE-2026-34457 Authentication bypass in OAuth2 Proxy versions before 7.15.2 allows remote unauthenticated attackers to access protected resources when deployed with nginx auth_request integration and health check features enabled. Attackers can spoof health check User-Agent headers to bypass OAuth2 authentication entirely, gaining unauthorized access to upstream applications. CVSS 9.1 (Critical) reflects network-accessible, low-complexity attack requiring no privileges or user interaction. No active exploitation confirmed (not in CISA KEV), but the trivial attack complexity and authentication bypass impact warrant immediate patching in affected deployments using nginx auth_request with --ping-user-agent or --gcp-healthchecks flags. CRITICAL 9.1 0.1% 46
CVE-2026-33419 MinIO AIStor's Security Token Service (STS) AssumeRoleWithLDAPIdentity endpoint contains two combined vulnerabilities that enable LDAP credential brute-forcing: distinguishable error messages allowing username enumeration (CWE-204) and missing rate limiting (CWE-307). All MinIO deployments through the final open-source release with LDAP authentication enabled are affected. Unauthenticated network attackers can enumerate valid LDAP usernames, perform unlimited password guessing attacks, and obtain temporary AWS-style STS credentials granting full access to victim users' S3 buckets and objects. CRITICAL 9.1 0.1% 46

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