CVE-2026-55202

HIGH EPSS 25.3%
Published Jun 17, 20261w ago · Modified Jun 23, 20261w ago
8.8 CVSS 4.0
High
Find Similar
Published Jun 17, 2026 1w ago
Last Modified Jun 23, 2026 1w ago

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.

CVSS Details

Base Score
8.8
Exploitability
—
Impact
—
Vector string
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope X

Threat Intelligence

EPSS Exploit Probability
25.3% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-290

References 3

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

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.