What is CVE-2026-42356?

CVE-2026-42356 is a low-severity vulnerability in Apache Software Foundation HTTP Server, classified under CWE-430. CVSS score: 3.7/10. Published 2026-10-01.

How severe is CVE-2026-42356?

Low severity. CVSS v3 base score is 3.7 out of 10.

Vulnerability in Apache Software Foundation HTTP Server

CVE-2026-42356

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.

Published 2026-10-01 · last modified 2026-10-01.

CVSS v3 metric

CVSS v3 base score 3.7 (Low). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Apache Software Foundation HTTP Server

Weakness classification (CWE)

CWE-430

References

httpd.apache.org/security/vulnerabilities_24.html (vendor-advisory)
af854a3a-2127-422b-91ae-364da2661108

Frequently asked questions

What is CVE-2026-42356?: CVE-2026-42356 is a low-severity vulnerability in Apache Software Foundation HTTP Server, classified under CWE-430. CVSS score: 3.7/10. Published 2026-10-01.
How severe is CVE-2026-42356?: Low severity. CVSS v3 base score is 3.7 out of 10.