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...

CVE-2026-54388: Inconsistent Interpretation of HTTP Requests

Tinyproxy through 1.11.3, fixed in commit 364cdb6, fails to reject requests containing multiple Content-Length headers with differing values, forwarding all duplicate headers to the backend while using the first value to determine how many request body bytes to consume. Remote attackers can...

CVE-2026-54387: Inconsistent Interpretation of HTTP Requests

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-2026-55202: Authentication Bypass by Spoofing

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-2026-50530

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...

Fedora 42 : tinyproxy (2026-d67a979089)

The remote Fedora 42 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-d67a979089 advisory. Backport upstream fixes for CVE-2026-3945 and CVE-2026-31842. Tenable has extracted the preceding description block directly from the Fedora securit...

Fedora 43 : tinyproxy (2026-d8daf8790f)

The remote Fedora 43 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-d8daf8790f advisory. Backport upstream fixes for CVE-2026-3945 and CVE-2026-31842. Tenable has extracted the preceding description block directly from the Fedora securit...

Fedora 45 : tinyproxy (2026-1c7a717dbc)

The remote Fedora 45 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-1c7a717dbc advisory. Automatic update for tinyproxy-1.11.3-2.fc45. Changelog Wed Apr 8 2026 Carl George - 1.11.3-2 - Backport upstream CVE fixes - Fixes rhbz2452969...

Linux Distros Unpatched Vulnerability : CVE-2026-31842

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Tinyproxy through 1.11.3 is vulnerable to HTTP request parsing desynchronization due to a case-sensitive comparison of the Transfer-Encoding header in src/reqs....

SUSE CVE-2026-31842

Tinyproxy through 1.11.3 is vulnerable to HTTP request parsing desynchronization due to a case-sensitive comparison of the Transfer-Encoding header in src/reqs.c. The ischunkedtransfer function uses strcmp to compare the header value against "chunked", even though RFC 7230 specifies that...

EUVD-2026-19603

Tinyproxy through 1.11.3 is vulnerable to HTTP request parsing desynchronization due to a case-sensitive comparison of the Transfer-Encoding header in src/reqs.c. The ischunkedtransfer function uses strcmp to compare the header value against "chunked", even though RFC 7230 specifies that...

CVE-2026-31842

Tinyproxy through 1.11.3 is vulnerable to HTTP request parsing desynchronization due to a case-sensitive comparison of the Transfer-Encoding header in src/reqs.c. The ischunkedtransfer function uses strcmp to compare the header value against "chunked", even though RFC 7230 specifies that...

DEBIAN-CVE-2026-31842

Tinyproxy through 1.11.3 is vulnerable to HTTP request parsing desynchronization due to a case-sensitive comparison of the Transfer-Encoding header in src/reqs.c. The ischunkedtransfer function uses strcmp to compare the header value against "chunked", even though RFC 7230 specifies that...

UBUNTU-CVE-2026-31842

Tinyproxy through 1.11.3 is vulnerable to HTTP request parsing desynchronization due to a case-sensitive comparison of the Transfer-Encoding header in src/reqs.c. The ischunkedtransfer function uses strcmp to compare the header value against "chunked", even though RFC 7230 specifies that...

CVE-2026-31842

Tinyproxy through 1.11.3 is vulnerable to HTTP request parsing desynchronization due to a case-sensitive comparison of the Transfer-Encoding header in src/reqs.c. The ischunkedtransfer function uses strcmp to compare the header value against "chunked", even though RFC 7230 specifies that...

CVE-2026-31842

Tinyproxy through 1.11.3 is vulnerable to HTTP request parsing desynchronization due to a case-sensitive comparison of the Transfer-Encoding header in src/reqs.c. The ischunkedtransfer function uses strcmp to compare the header value against "chunked", even though RFC 7230 specifies that...