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CVE-2026-55202 Details

ANALYZED

This CVE record has been analyzed and enriched by NVDAPI.com as an independent party.

Description

Tinyproxy through 1.11.3, fixed in commit 09312a1, fails to properly validate the Host header during stathost detection, allowing unauthenticated attackers to access the stats page by injecting a matching Host header or bypass detection via port manipulation. Remote attackers can trigger unauthorized access to internal proxy statistics or misroute requests as transparent proxy connections to circumvent access controls.

Metrics

CVSS 3.x Severity and Vector Strings:

VolerionCVSS-B:5.3 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

CNA: [email protected]CVSS-B:8.2 HIGHVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://github.com/tinyproxy/tinyproxy/commit/09312a185ae25cc486b4ff5987638a7917a48bce	[email protected]	Source CodeVendor
https://github.com/tinyproxy/tinyproxy/pull/606	[email protected]	Issue TrackingVendor
https://www.vulncheck.com/advisories/evil-winrm-path-traversal-in-download-dir-function	[email protected]	AdvisoryNot Applicable

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-290	Authentication Bypass by Spoofing	[email protected]

Affected Products

Product	Versions
Tinyproxy	<= 1.11.3 (semver)
CPE cpe:2.3:a:tinyproxy_project:tinyproxy:::::::: Remediation Upgrade: 1.11.4moderate effort

Change History

3 change records found show changes

Date	Action	Recorded By
Jul 14, 2026	CVE Modified	[email protected]
Jun 23, 2026	CVE Modified	CISA-ADP
Jun 17, 2026	New CVE Received	[email protected]