CVE•Published 2026-01-07•Modified 2026-06-30•1 article on news•6 live references•NVD data

CVE-2025-12543Redhat · Build_of_apache_camel

Vulnerability data via NVD (ingested)

CVSS v3.1

9.6

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:L

EPSS percentile

Exploit Prediction Scoring System · top 36% of all CVEs

Weaknesses (CWE)

CWE-20Improper Input Validation

Description

A flaw was found in the Undertow HTTP server core, which is used in WildFly, JBoss EAP, and other Java applications. The Undertow library fails to properly validate the Host header in incoming HTTP requests.As a result, requests containing malformed or malicious Host headers are processed without rejection, enabling attackers to poison caches, perform internal network scans, or hijack user sessions.

Timeline

Published 2026-01-07

Modified 2026-06-30

External references

NVD MITRE Exploit-DB GitHub PoC Sploitus VulnCheck

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-2025-12543

Hosts Shodan has explicitly fingerprinted as vulnerable.

Shodan · product

product:"Redhat Build Of Apache Camel"

All exposed Redhat Build Of Apache Camel instances — cross-reference with the CVE's affected-version range.

Shodan · banner/body mention

http.html:"Build Of Apache Camel"

HTTP body or banner mentions "Build Of Apache Camel" — catches deploys Shodan didn't identify as a product.

More intel sources (5)

Shodan report

vuln:CVE-2025-12543