SEPTEMBER 13, 2026
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Case File

CVE-2026-9561

HIGH · CVSS 8.8 EPSS 0.20% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-07-14 · Last synced 2026-08-13

CyberRota Analysis

AI-Generated

Eclipse Kura versions prior to 5.6.2 are vulnerable due to their reliance on the client-supplied X-Forwarded-For HTTP header for determining the client IP address in audit logs. This flaw allows unauthenticated remote attackers to spoof IP addresses, potentially bypassing IP-based brute-force protections and enabling denial-of-service attacks against third parties. Organizations using affected versions should prioritize patching to mitigate these risks.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Detected Signals
exploit

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-9561
Severity
HIGH
CVSS
8.8
EPSS
0.20%

Original NVD Description

Eclipse Kura versions prior to 5.6.2 trust the client-supplied X-Forwarded-For HTTP header as the authoritative source of the client IP address in audit log entries. The org.eclipse.kura.web2 (Web Console) and org.eclipse.kura.rest.provider (REST API) components use this header as the primary IP source when initializing audit context, and org.eclipse.kura.jetty.customizer unconditionally installs Jetty's ForwardedRequestCustomizer on all HTTP/HTTPS connectors, causing HttpServletRequest.getRemoteAddr() to reflect the attacker-controlled header value. An unauthenticated remote attacker can exploit this vulnerability to bypass IP-based brute-force protections — such as fail2ban — by spoofing the logged IP address to a non-routable value, allowing a brute-force attack to proceed undetected, or to cause a denial of service against a third party by injecting a victim's IP address and triggering a ban on that address.