CVE-2026-55202
HighCVSS 8.2Exploitation Probability (EPSS)
Low risk25th percentile — higher than 25% of all known CVEs
Summary
Tinyproxy through 1.11.3 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.
Risk Assessment
Remote attackers can trigger unauthorized access to internal proxy statistics or misroute requests as transparent proxy connections, potentially circumventing access controls.
Recommendation
It is recommended to update Tinyproxy to version 1.11.4 or later to fix this vulnerability and implement additional security measures for accessing statistics.
Original NVD description (English source)
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.