VULNERABILITY INTELLIGENCE

CVE-2026-55202

CVSS score8.2 HIGH
EPSS probability0.38%
CISA KEVNot currently listed
Published2026-06-17
Last modified2026-10-29
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N

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.

Weakness classification

  • disclosure@vulncheck.com: CWE-290

Primary references