ALSA-2025:23732 — Important: httpd:2.4 security update

Summary

The httpd packages provide the Apache HTTP Server, a powerful, efficient, and extensible web server.

Security Fix(es):

* httpd: Apache HTTP Server: CGI environment variable override (CVE-2025-65082)
* mod_md: Apache HTTP Server: mod_md (ACME), unintended retry intervals (CVE-2025-55753)
* httpd: Apache HTTP Server: mod_userdir+suexec bypass via AllowOverride FileInfo (CVE-2025-66200)
* httpd: Apache HTTP Server: Server Side Includes adds query string to #exec cmd=... (CVE-2025-58098)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Fixed packages 11

Release	Package	Fixed in
AlmaLinux · 8	httpd	2.4.37-65.module_el8.10.0+4088+57f011c1.7
AlmaLinux · 8	httpd-devel	2.4.37-65.module_el8.10.0+4088+57f011c1.7
AlmaLinux · 8	httpd-filesystem	2.4.37-65.module_el8.10.0+4088+57f011c1.7
AlmaLinux · 8	httpd-manual	2.4.37-65.module_el8.10.0+4088+57f011c1.7
AlmaLinux · 8	httpd-tools	2.4.37-65.module_el8.10.0+4088+57f011c1.7
AlmaLinux · 8	mod_http2	1.15.7-10.module_el8.10.0+4044+ea5f78b1.4
AlmaLinux · 8	mod_ldap	2.4.37-65.module_el8.10.0+4088+57f011c1.7
AlmaLinux · 8	mod_md	1:2.0.8-8.module_el8.10.0+4088+57f011c1.2
AlmaLinux · 8	mod_proxy_html	1:2.4.37-65.module_el8.10.0+4088+57f011c1.7
AlmaLinux · 8	mod_session	2.4.37-65.module_el8.10.0+4088+57f011c1.7
AlmaLinux · 8	mod_ssl	1:2.4.37-65.module_el8.10.0+4088+57f011c1.7

Vulnerabilities 4

High 8.3

CVE-2025-58098 Public exploit

Apache HTTP Server: Server Side Includes adds query string to #exec cmd=...

Apache HTTP Server 2.4.65 and earlier with Server Side Includes (SSI) enabled and mod_cgid (but not mod_cgi) passes the shell-escaped query string to #exec cmd="..." directives. This issue affects Apache HTTP Server before 2.4.66. Users are recommended to upg…

Apache Software Foundation Apache HTTP Server apache2 apache2 Debian Ubuntu Azure Linux Alpine

Dec 5, 2025
High 7.5

CVE-2025-55753

Apache HTTP Server: mod_md (ACME), unintended retry intervals

An integer overflow in the case of failed ACME certificate renewal leads, after a number of failures (~30 days in default configurations), to the backoff timer becoming 0. Attempts to renew the certificate then are repeated without delays until it succeeds. T…

Apache Software Foundation Apache HTTP Server apache2 apache2 Debian Ubuntu Azure Linux Alpine

Dec 5, 2025
Medium 6.5

CVE-2025-65082

Apache HTTP Server: CGI environment variable override

Improper Neutralization of Escape, Meta, or Control Sequences vulnerability in Apache HTTP Server through environment variables set via the Apache configuration unexpectedly superseding variables calculated by the server for CGI programs. This issue affects A…

Apache Software Foundation Apache HTTP Server apache2 apache2 Debian Ubuntu Azure Linux Alpine

Dec 5, 2025
Medium 5.4

CVE-2025-66200

Apache HTTP Server: mod_userdir+suexec bypass via AllowOverride FileInfo

mod_userdir+suexec bypass via AllowOverride FileInfo vulnerability in Apache HTTP Server. Users with access to use the RequestHeader directive in htaccess can cause some CGI scripts to run under an unexpected userid. This issue affects Apache HTTP Server: fro…

Apache Software Foundation Apache HTTP Server apache2 apache2 Debian Ubuntu Azure Linux Alpine

Dec 5, 2025

References

report
https://access.redhat.com/security/cve/CVE-2025-55753
report
https://access.redhat.com/security/cve/CVE-2025-58098
report
https://access.redhat.com/security/cve/CVE-2025-65082
report
https://access.redhat.com/security/cve/CVE-2025-66200
report
https://bugzilla.redhat.com/2419139
report
https://bugzilla.redhat.com/2419140
report
https://bugzilla.redhat.com/2419262
report
https://bugzilla.redhat.com/2419365
advisory
https://errata.almalinux.org/8/ALSA-2025-23732.html