Security Bulletin: Vulnerability in libsoup affects IBM Netezza Appliance
Details
CVSS v3
8.2
NVD published
2025-12-11 13:15:58
EPSS
<0.1% probability · 5.7th percentile — 2026-04-22
Affected versions
Not available in our cache.
Summary
A flaw in libsoup’s HTTP header handling allows multiple Host: headers in a request and returns the last occurrence for server-side processing. Common front proxies often honor the first Host: header, so this mismatch can cause vhost confusion where a proxy routes a request to one backend but the backend interprets it as destined for another host. This discrepancy enables request-smuggling style attacks, cache poisoning, or bypassing host-based access controls when an attacker supplies duplicate Host headers.
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