CVE-2023-27522
httpd: mod_proxy_uwsgi HTTP response splitting
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · March 7, 2023
Updated · September 21, 2026
Description
An HTTP Response Smuggling vulnerability was found in the Apache HTTP Server via mod_proxy_uwsgi. This security issue occurs when special characters in the origin response header can truncate or split the response forwarded to the client.
Statement
The HTTP Response Smuggling vulnerability in Apache HTTP Server via mod_proxy_uwsgi has been categorized as moderate severity for Red Hat Enterprise Linux due to several technical factors. While the potential impact of this vulnerability is significant, its exploitation requires specific conditions, including the presence of mod_proxy_uwsgi and the ability to inject specially crafted headers into requests. Additionally, successful exploitation depends on the specific configuration of the server and the network environment. Furthermore, the vulnerability primarily affects the integrity and reliability of HTTP responses, rather than directly leading to remote code execution or unauthorized access. Therefore, the likelihood of exploitation and the potential impact on affected systems have been evaluated as moderate, warranting attention and remediation but not categorized as important.
CVSS score applicability
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
Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.
CVSS / CWE
CVSS 3.1 · 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
CWE-113 · Improper Neutralization of CRLF Sequences in HTTP Headers ('HTTP Request/Response Splitting')