CVE-2023-0836
haproxy: data leak via fcgi requests
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · December 9, 2022
Updated · January 29, 2026
Description
A flaw was found in HAProxy, which could allow a remote attacker to obtain sensitive information caused by improper initialization when encoding the FCGI_BEGIN_REQUEST record. By sending a specially crafted request, an attacker could exploit this vulnerability to obtain sensitive information and use this information to launch further attacks against the affected system.
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
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.1 · 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CWE-459 · Incomplete Cleanup