CVE-2026-552028.8HighCWE-290
CVE-2026-55202: tinyproxy vulnerability
Vendor fix available · Affected: tinyproxy · Exploitation: not established
ExploitationNot established
Not in CISA KEV as of catalogue 2026.11.13 (13 Nov)
- In CISA KEV: not seen
- Exploited (reported): not seen
- Scanning observed: not seen
- Proof of concept public: not seen
- Not establishedNothing in the sources we check
0.4%probability of exploitation in the next 30 days
32nd percentile
050100
Higher than 32% of scored CVEs
8.8HighCVSS 4.0
LowMediumHighCrit.
DescriptionNVD
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.
On the Atlas
Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.
Coverage1 article · 1 outlet
First in our coverage: SecurityOnline, 23 Jun.
- Tinyproxy flaws allow HTTP request smuggling, urge patch nowSecurityOnline · first in our coverage · mentions it in passing
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