Reference page — cumulative record through Wednesday, August 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.
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 a…
AV AC AT PR UI VC VI VA CVSS EPSS %ile KEV
N L N N N N H L 8.8 .0019 9.3 —
AFFECTED
Product Versions Fixed
Eclipse Kura 5.0.0 – —
TIMELINE
May 26 Reserved by eclipse
Jul 14 EXPLOIT PUBLISHED — CVE-2026-9561 (Eclipse Foundation Eclipse Kura). Public exploit reference added.
Jul 14 Published (CNA: eclipse)
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.
Lifecycle
Complete event history — 3 events, chronological
| Date | Event | Detail |
|---|
| May 26, 2026 | Reserved | Reserved by eclipse |
| July 14, 2026 | EXPLOIT PUBLISHED | EXPLOIT PUBLISHED — CVE-2026-9561 (Eclipse Foundation Eclipse Kura). Public exploit reference added. |
| July 14, 2026 | Published | Published (CNA: eclipse) |
Affected
Affected products and packages — 1 row
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
|---|
| Eclipse Foundation | Eclipse Kura | — | 5.0.0 | — |
About this page
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-9561 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Wednesday, August 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.