redhat http-server CVE-2026-42356 in Red Hat and Apache Products
Published on October 1, 2026

Apache HTTP Server: limited RCE for some internal redirects to non-CGI files in CGI directories

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Deployment of wrong handler vulnerability in Apache HTTP Server allows the target of some internal redirects from CGI programs to also be treated as CGI and executed. The target must already be in a directory enabled for CGI and have no other extension understood by mod_mime. This issue affects Apache HTTP Server: from 2.4.60 through 2.4.68.

Vendor Advisory NVD

Vulnerability Analysis

CVE-2026-42356 is exploitable with network access, and does not require authorization privileges or user interaction. This vulnerability is consided to have a high level of attack complexity. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality, with no impact on integrity, and no impact on availability.

Attack Vector:
NETWORK
Attack Complexity:
HIGH
Privileges Required:
NONE
User Interaction:
NONE
Scope:
UNCHANGED
Confidentiality Impact:
NONE
Integrity Impact:
LOW
Availability Impact:
NONE

Timeline

reported

fixed in 2.4.x by r1938650 181 days later.

2.4.69 released

Weakness Type

Deployment of Wrong Handler

The wrong "handler" is assigned to process an object. An example of deploying the wrong handler would be calling a servlet to reveal source code of a .JSP file, or automatically "determining" type of the object even if it is contradictory to an explicitly specified type.


Products Associated with CVE-2026-42356

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Red Hat Http Server
 
Apache HTTP Server
 

Affected Versions

Apache Software Foundation Apache HTTP Server: