CVE-2026-54388

Tinyproxy (≤ 1.11.3) is affected by CVE-2026-54388. The issue occurs when a request contains multiple Content-Length headers with differing values: Tinyproxy forwards all duplicate headers to the backend but uses the first value to determine how many body bytes to consume. This desynchronizes pro...

EUVD-2026-37789

Tinyproxy through 1.11.3, fixed in commit ff45d3b, fails to reconcile conflicting Content-Length and Transfer-Encoding: chunked headers, forwarding both verbatim to the backend while using Content-Length to determine how many request body bytes to consume. Remote attackers can desynchronize the...

CVE-2026-54387

CVE-2026-54387 affects Tinyproxy up to version 1.11.3. It fails to reconcile conflicting Content-Length and Transfer-Encoding: chunked headers, forwarding both verbatim to the backend while using Content-Length to consume the request body. This desynchronizes frontend/backend parsers and can enab...

CVE-2026-54387 Tinyproxy - HTTP Request Smuggling via CL/TE Desynchronization

Tinyproxy through 1.11.3, fixed in commit ff45d3b, fails to reconcile conflicting Content-Length and Transfer-Encoding: chunked headers, forwarding both verbatim to the backend while using Content-Length to determine how many request body bytes to consume. Remote attackers can desynchronize the...

CVE-2026-54387 Tinyproxy - HTTP Request Smuggling via CL/TE Desynchronization

Tinyproxy through 1.11.3, fixed in commit ff45d3b, fails to reconcile conflicting Content-Length and Transfer-Encoding: chunked headers, forwarding both verbatim to the backend while using Content-Length to determine how many request body bytes to consume. Remote attackers can desynchronize the...

CVE-2026-54387 Tinyproxy - HTTP Request Smuggling via CL/TE Desynchronization

Tinyproxy through 1.11.3, fixed in commit ff45d3b, fails to reconcile conflicting Content-Length and Transfer-Encoding: chunked headers, forwarding both verbatim to the backend while using Content-Length to determine how many request body bytes to consume. Remote attackers can desynchronize the...

CVE-2026-54387

Tinyproxy through 1.11.3, fixed in commit ff45d3b, fails to reconcile conflicting Content-Length and Transfer-Encoding: chunked headers, forwarding both verbatim to the backend while using Content-Length to determine how many request body bytes to consume. Remote attackers can desynchronize the...

EUVD-2026-37786

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...

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

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...

CVE-2026-55202

Tinyproxy (up to version 1.11.3) contains a vulnerability in stathost detection where the Host header is not properly validated. This allows unauthenticated attackers to access the stats page by injecting a matching Host header or bypass detection via port manipulation, potentially misrouting req...

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

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...

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

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...

CVE-2026-55202

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...

PT-2026-50539

Name of the Vulnerable Software and Affected Versions Tinyproxy versions prior to 1.11.4 Description Tinyproxy fails to reject requests containing multiple Content-Length headers with differing values. The software forwards all duplicate headers to the backend but uses only the first value to...

PT-2026-50538

Name of the Vulnerable Software and Affected Versions Tinyproxy versions prior to commit ff45d3b Description Tinyproxy fails to reconcile conflicting Content-Length and Transfer-Encoding: chunked headers, forwarding both verbatim to the backend while using Content-Length to determine the number o...

PT-2026-50530

Name of the Vulnerable Software and Affected Versions Tinyproxy versions prior to 1.11.3 commit 09312a1 Description Improper validation of the Host header during stathost detection allows unauthenticated attackers to access the statistics page by injecting a matching Host header or bypassing...

Fedora 44 : tinyproxy (2026-9695fbdabb)

The remote Fedora 44 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-9695fbdabb advisory. Backport upstream fixes for CVE-2026-3945 and CVE-2026-31842. Tenable has extracted the preceding description block directly from the Fedora securit...

[SECURITY] Fedora 44 Update: tinyproxy-1.11.2-7.fc44

tinyproxy is a small, efficient HTTP/SSL proxy daemon that is very useful in a small network setting, where a larger proxy like Squid would either be too resource intensive, or a security risk...

[SECURITY] Fedora 42 Update: tinyproxy-1.11.2-7.fc42

tinyproxy is a small, efficient HTTP/SSL proxy daemon that is very useful in a small network setting, where a larger proxy like Squid would either be too resource intensive, or a security risk...

[SECURITY] Fedora 43 Update: tinyproxy-1.11.2-7.fc43

tinyproxy is a small, efficient HTTP/SSL proxy daemon that is very useful in a small network setting, where a larger proxy like Squid would either be too resource intensive, or a security risk...