Severity:
HIGH RISK
(8.6)
Header Manipulation (CWE-644) in Fastify Proxy Modules
CVE-2026-33805
Modified
Vulnerability Type
Category:
Header Manipulation / Message Routing Error
CWE:
CWE-644;CWE-444
Impact:
Bypass of Proxy-Level Security and Routing Controls
Severity:
HIGH RISK
(8.6)
CVSS Version:
3.1
Catch This CVE While Code Is Being Written
Detect vulnerable code directly in pull requests, so CVEs are fixed before merge.
Summary
Affected Context
Exploit Preconditions
Why This Happens
Potential Impact
General Mitigation Guidance
How Teams Detect Issues Like This
Frequently Asked Questions
Source
NDV
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