Advisory severityLow3.7Red Hat Linux

Low [CVE-2026-42356] arbitrary code execution via incorrect handler assignment during internal CGI redirects

This low-severity Red Hat Linux advisory covers CVE-2026-42356; related products: Red Hat Hardened Images, Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 9.

Aggregated and source-linked by VulniPulse. Data sources, validation and limitations.

CVE-2026-42356 Source published Oct 1, 2026Source updated Oct 1, 2026

VulniPulse record published Oct 2, 2026Record updated Oct 3, 2026

CVE-2026-42356

Monitor future Red Hat Linux CVEs from your phone.

Choose a whole vendor or a precise platform, then receive matching security advisories by phone notification, email, or both. Coverage follows 32 official vendor sources and 160+ reviewed platform categories.

Matching phone alertsOptional email delivery

Get CVE alerts See app features

Summary

arbitrary code execution via incorrect handler assignment during internal CGI redirects. Red Hat rates this low (CVSS 3.7).

Weakness: CWE-430. Red Hat lists fixing advisory RHSA-2026:74858 with package httpd-main-2.4.69-1.hum1.

Affected products named by the advisory: Red Hat Hardened Images; Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 9; Red Hat package: httpd.

Affected versions

No affected-version range was extracted from the source record. The vendor advisory is authoritative — check it before change work.

Official advisory · high-confidence parse· fetched 4 days ago·verify at source

Fixed versions

httpd-main-2.4.69-1.hum1
RHSA-2026:74858

Official advisory · high-confidence parse· fetched 4 days ago·verify at source

Mitigation checklist

Recommended fix / mitigation

If CGI functionality is not required, disable CGI execution by commenting out `mod_cgi` or `mod_cgid` in the Apache configuration (for example, in `/etc/httpd/conf.modules.d/01-cgi.conf`), or by removing `ExecCGI` from `Options` directives in `/etc/httpd/conf/httpd.conf`. Apply the changes to the running service: systemctl reload httpd Caveats: Disabling CGI modules or execution options will prevent any existing CGI applications from functioning. Warning: Reloading or restarting the httpd service may temporarily disrupt active connections.

Official advisory · high-confidence parse· fetched 4 days ago·verify at source

Discussion(0)

No comments yet. Share field notes, upgrade gotchas, or questions — verify against the vendor advisory before acting on community advice.