CVE•Published 2026-10-28•0 articles on news•5 live references•NVD data
CVE-2026-118651
Vulnerability data via NVD (ingested)
CVSS v3.1
5.3
MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
EPSS percentile
—
Weaknesses (CWE)
Description
Echo is a Go web framework. From 4.0.0 until 5.4.0, the Proxy middleware can preserve an attacker-supplied X-Real-IP header and forward it to an upstream service when Echo.IPExtractor is not configured. A remote client can therefore make upstream services receive a spoofed client address, undermining IP-based access controls, rate limiting, audit logging, or geographic restrictions that trust Echo's forwarded identity. This issue is fixed in Echo 5.4.0.
Timeline
Published 2026-10-28
Modified 2026-10-28
External references
Search for exposed instances
Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).
Shodan · vuln tag0 hosts
vuln:CVE-2026-118651Hosts Shodan has explicitly fingerprinted as vulnerable.
More intel sources (5)
Shodan report
vuln:CVE-2026-118651Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2026-118651Censys host search filtered to this CVE id.
grep.app
CVE-2026-118651Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2026-118651GitHub code search for direct mentions.
Google dork
"CVE-2026-118651" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.
Known PoCs on GitHub
No public proof-of-concept repositories found for CVE-2026-118651 on GitHub.
We haven't classified any articles referencing CVE-2026-118651 yet. The external references above still apply.