Summary
The httpd packages provide the Apache HTTP Server, a powerful, efficient, and extensible web server.
Security Fix(es):
* httpd: insufficient escaping of user-supplied data in mod_ssl (CVE-2024-47252)
* httpd: mod_ssl: access control bypass by trusted clients is possible using TLS 1.3 session resumption (CVE-2025-23048)
* httpd: mod_proxy_http2: untrusted input from a client causes an assertion to fail in the Apache mod_proxy_http2 module (CVE-2025-49630)
* httpd: HTTP Session Hijack via a TLS upgrade (CVE-2025-49812)
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 12
| Release | Package | Fixed in |
|---|---|---|
| AlmaLinux · 8 | httpd | 2.4.37-65.module_el8.10.0+4044+ea5f78b1.5 |
| AlmaLinux · 8 | httpd-devel | 2.4.37-65.module_el8.10.0+4044+ea5f78b1.5 |
| AlmaLinux · 8 | httpd-filesystem | 2.4.37-65.module_el8.10.0+4044+ea5f78b1.5 |
| AlmaLinux · 8 | httpd-manual | 2.4.37-65.module_el8.10.0+4044+ea5f78b1.5 |
| AlmaLinux · 8 | httpd-tools | 2.4.37-65.module_el8.10.0+4044+ea5f78b1.5 |
| 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+4044+ea5f78b1.5 |
| AlmaLinux · 8 | mod_md | 1:2.0.8-8.module_el8.6.0+2872+fe0ff7aa |
| AlmaLinux · 8 | mod_md | 1:2.0.8-8.module_el8.6.0+3031+fb177b09 |
| AlmaLinux · 8 | mod_proxy_html | 1:2.4.37-65.module_el8.10.0+4044+ea5f78b1.5 |
| AlmaLinux · 8 | mod_session | 2.4.37-65.module_el8.10.0+4044+ea5f78b1.5 |
| AlmaLinux · 8 | mod_ssl | 1:2.4.37-65.module_el8.10.0+4044+ea5f78b1.5 |
Vulnerabilities 4
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Critical 9.1CVE-2025-23048 Public exploit
Apache HTTP Server: mod_ssl access control bypass with session resumption
In some mod_ssl configurations on Apache HTTP Server 2.4.35 through to 2.4.63, an access control bypass by trusted clients is possible using TLS 1.3 session resumption. Configurations are affected when mod_ssl is configured for multiple virtual hosts, with ea…
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High 7.5
Apache HTTP Server: mod_ssl error log variable escaping
Insufficient escaping of user-supplied data in mod_ssl in Apache HTTP Server 2.4.63 and earlier allows an untrusted SSL/TLS client to insert escape characters into log files in some configurations. In a logging configuration where CustomLog is used with "%{va…
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High 7.5
Apache HTTP Server: mod_proxy_http2 denial of service
In certain proxy configurations, a denial of service attack against Apache HTTP Server versions 2.4.26 through to 2.4.63 can be triggered by untrusted clients causing an assertion in mod_proxy_http2. Configurations affected are a reverse proxy is configured f…
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High 7.4CVE-2025-49812 Public exploit
Apache HTTP Server: mod_ssl TLS upgrade attack
In some mod_ssl configurations on Apache HTTP Server versions through to 2.4.63, an HTTP desynchronisation attack allows a man-in-the-middle attacker to hijack an HTTP session via a TLS upgrade. Only configurations using "SSLEngine optional" to enable TLS upg…
References
-
report
https://access.redhat.com/security/cve/CVE-2024-47252
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report
https://access.redhat.com/security/cve/CVE-2025-23048
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report
https://access.redhat.com/security/cve/CVE-2025-49630
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report
https://access.redhat.com/security/cve/CVE-2025-49812
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report
https://bugzilla.redhat.com/2374571
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report
https://bugzilla.redhat.com/2374576
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report
https://bugzilla.redhat.com/2374578
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report
https://bugzilla.redhat.com/2374580
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advisory
https://errata.almalinux.org/8/ALSA-2025-15123.html