CVE-2023-49606 CRITICAL

CVE-2023-49606

Vendor Tinyproxy
Product Tinyproxy
Weakness CWE-416
Published May 1, 2024
Last update November 4, 2025

CVSS base score

9.8/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality High
Integrity High

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

What the vulnerability does

01Description

A use-after-free vulnerability exists in the HTTP Connection Headers parsing in Tinyproxy 1.11.1 and Tinyproxy 1.10.0. A specially crafted HTTP header can trigger reuse of previously freed memory, which leads to memory corruption and could lead to remote code execution. An attacker needs to make an unauthenticated HTTP request to trigger this vulnerability.

Key dates

02Disclosure timeline

May 1, 2024 CVE published
November 4, 2025 Record updated