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.

Metrics

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact Low

Integrity Impact None

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Exploitation none

Automatable yes

Technical Impact partial

Affected Vendors & Products

No data.

No data.

No data.

No data.

Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://gitlab.com/hsleisink/hiawatha/-/blame/master/src/http.c?ref_type=heads#L205 cve-icon cve-icon
History

Mon, 26 Jan 2026 21:15:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 5.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Mon, 26 Jan 2026 18:00:00 +0000

Type Values Removed Values Added
Description 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.
Title Improper header parsing may lead to request smuggling
References

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: certcc

Published:

Updated: 2026-01-26T20:55:04.568Z

Reserved: 2025-08-19T17:36:13.585Z

Link: CVE-2025-57783

cve-icon Vulnrichment

Updated: 2026-01-26T20:54:59.938Z

cve-icon NVD

Status : Received

Published: 2026-01-26T18:16:27.350

Modified: 2026-01-26T21:15:55.150

Link: CVE-2025-57783

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses

No weakness.