CVE-2022-48279
mod_security: incorrect parsing of HTTP multipart requests leads to web application firewall bypass
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · January 20, 2023
Updated · September 21, 2026
Description
A vulnerability was found in ModSecurity. This issue occurs when HTTP multipart requests are incorrectly parsed and could bypass the Web Application Firewall. NOTE: This is related to CVE-2022-39956, but can be considered independent changes to the ModSecurity (C language) codebase.
Statement
Red Hat rates this vulnerability as Moderate impact as a result of how mod_security is configured to be used in Red Hat products. When running with default configurations the affected program will have limited privileges and thus the impact of this flaw will be restricted beyond what the Web Application Firewall is also restricting.
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 do not 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:H/I:N/A:N
CWE-1389 · Incorrect Parsing of Numbers with Different Radices