CVE-2023-25950: haproxy technologies haproxy HTTP Request/Response Smuggling

Vulnerability summary

CVE-2023-25950 is a high (CVSS 7.3) HTTP Request/Response Smuggling vulnerability in haproxy technologies haproxy. EPSS estimates a 2.97% chance of exploitation in the next 30 days, higher than 87.1% of scored vulnerabilities.

Timeline

1. 11-04-2023
   PublishedVulnerability first disclosed.
2. 11-02-2025
   Last modifiedVulnerability information updated.

Description

HTTP request/response smuggling vulnerability in HAProxy version 2.7.0, and 2.6.1 to 2.6.7 allows a remote attacker to alter a legitimate user's request. As a result, the attacker may obtain sensitive information or cause a denial-of-service (DoS) condition.

• CWE-444Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')The product acts as an intermediary HTTP agent (such as a proxy or firewall) in the data flow between two entities such as a client and server, but it does not interpret malformed HTTP requests or responses in ways that are consistent with how the messages will be processed by those entities that are at the ultimate destination.