Vulnerability 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 Score
HIGH
Related Weaknesses (CWE)
References
- https://github.com/tinyproxy/tinyproxy/commit/09312a185ae25cc486b4ff5987638a7917
- https://github.com/tinyproxy/tinyproxy/pull/606
- https://www.vulncheck.com/advisories/evil-winrm-path-traversal-in-download-dir-f
FAQ
What is CVE-2026-55202?
CVE-2026-55202 is a vulnerability with a CVSS score of 8.2 (HIGH). 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 matc...
How severe is CVE-2026-55202?
CVE-2026-55202 has been rated HIGH with a CVSS base score of 8.2/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-55202?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.