Tinyproxy through 1.11.3, fixed
Source GCVE Database
Not known to be exploited · CVSS 8.8 High.
Data as of 29 Oct 2026, 22:46 UTC
Thin evidence
One scorer or none| CNA (VulnCheck) | CVSS 4.0 | 8.8 |
|---|---|---|
| CNA (VulnCheck) | CVSS 3.1 | 8.2 |
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:NExploitation evidence
Disclosed: evidence found.
CVE published 17 Jun 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 29 Oct 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| tinyproxytinyproxy | Affected
| Fixed in– |
GitHubtinyproxypkg:github/tinyproxyOther threats | Affected
| Fixed in– |
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
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.
References
- nvd.nist.gov/vuln/detail/CVE-2026-55202 (opens in a new tab)
- github.com/tinyproxy/tinyproxy/pull/606 (opens in a new tab)
- github.com/tinyproxy/tinyproxy/commit/09312a185ae25cc486b4ff5987638a7917a48bce (opens in a new tab)
- vulncheck.com/advisories/evil-winrm-path-traversal-in-download-dir-function (opens in a new tab)
- vulncheck.com/advisories/tinyproxy-stathost-detection-bypass-via-host-header-manipulation (opens in a new tab)