High 8.2Published Jun 17, 2026

CVE-2026-55202Tinyproxy - Stathost Detection Bypass via Host Header Manipulation

Updated under an hour ago (Oct 26, 2026, 8:50 PM ET)

Does this affect you?

It affects tinyproxy. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

Do this next

Start free and add your stack

Free account, 1 product

Every CVE for tinyproxy

Exploited in the last 30 days

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: 8.2 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N
Weakness (CWE): CWE-290
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: VulnCheck
NVD analysis: Deferred
Record last updated: Jul 14, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

tinyproxy tinyproxy tinyproxy:tinyproxy (from the name)	through 1.11.3; 09312a185ae25cc486b4ff5987638a7917a48bce not affected	CNA record

References

References

https://github.com/tinyproxy/tinyproxy/pull/606	issue-tracking
https://github.com/tinyproxy/tinyproxy/commit/09312a185ae25cc486b4ff5987638a7917a48bce	patch
https://www.vulncheck.com/advisories/evil-winrm-path-traversal-in-download-dir-function	third-party-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.