CVE-2026-55202

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.

CVSS v3 8.2 HIGH

8.2^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 4.2

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/tinyproxy/tinyproxy/commit/09312a185ae25cc486b4ff5987638a7917a48bce
https://github.com/tinyproxy/tinyproxy/pull/606
https://www.vulncheck.com/advisories/evil-winrm-path-traversal-in-download-dir-function

Configurations

No configuration.

History

17 Jun 2026, 20:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-06-17 20:17

Updated : 2026-06-23 03:16

NVD link : CVE-2026-55202

Mitre link : CVE-2026-55202

CVE.ORG link : CVE-2026-55202

JSON object : View

Products Affected

No product.

CWE

CWE-290

Authentication Bypass by Spoofing

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