CVE-2026-55202
Tinyproxy - Stathost Detection Bypass via Host Header Manipulation
CVSS Score
8.2
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-290 |
| Vendor | tinyproxy |
| Product | tinyproxy |
| Published | Jun 17, 2026 |
| Last Updated | Jun 17, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
Low
Availability
None
Affected Versions
tinyproxy / tinyproxy
0 ≤ 1.11.3