CVE-2026-43870

A flaw was found in Apache Thrift. This vulnerability encompasses an origin validation error, improper limitation of a pathname to a restricted directory (path traversal), and improper neutralization of CRLF sequences in HTTP headers (HTTP request/response splitting). A remote attacker could exploit these issues to trigger uncontrolled resource consumption, leading to a Denial of Service (DoS) condition. Furthermore, path traversal could allow unauthorized access to files, and HTTP request/response splitting might enable other web-based attacks.

This Important flaw in Apache Thrift allows a remote attacker to trigger a denial of service through uncontrolled resource consumption. Additionally, the vulnerability enables path traversal for unauthorized file access and HTTP request/response splitting, potentially leading to further web-based attacks in Red Hat products that integrate Apache Thrift.

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.