5.3
CVSS 3.1
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CVSS VectorNVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None
Lifecycle Timeline
2
Analysis Generated
Mar 12, 2026 - 22:00 vuln.today
CVE Published
Jan 26, 2026 - 18:16 nvd
MEDIUM 5.3
DescriptionNVD
Improper header parsing may lead to request smuggling has been identified in Hiawatha webserver version 11.7 which allows an unauthenticated attacker to access restricted resources managed by Hiawatha webserver.
AnalysisAI
Hiawatha versions up to 11.7 contains a vulnerability that allows attackers to request smuggling has been identified in Hiawatha webserver version 11 (CVSS 5.3).
Technical ContextAI
affects Hiawatha. Improper header parsing may lead to request smuggling has been identified in Hiawatha webserver version 11.7 which allows an unauthenticated attacker to access restricted resources managed by Hiawatha webserver.
RemediationAI
Monitor vendor advisories for a patch. Restrict network access to the affected service where possible.
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External POC / Exploit Code
Leaving vuln.today
Destination URL
POC code from unknown sources may be malicious, contain backdoors, or be fake.
Always review and test exploit code in a safe, isolated environment (VM/sandbox).
Verify the source reputation and cross-reference with known databases (Exploit-DB, GitHub Security).