RHSA-2026:47046: httpd security update

RHSA-2026:47046, released June 24, 2026, fixes 12 CVEs in httpd (version 2.4.63-1.el10_0.4). None of them is reported as exploited. Patch Radar priority: High.

High

CVEs closed

None rated Critical

Exploited

None reported

Highest CVSS

9.8

Base score, 0 to 10

Highest EPSS

0.0138

72nd percentile

Priority of the 12 CVEs

Patch now 0
                                Urgent 0
                                High 12
                                Routine 0

Fixed package versions

Product	Release	Fixed in
httpd	RHEL 10	2.4.63-1.el10_0.4

CVEs this fix closes

Priority	CVE	Title	CVSS	EPSS	Exploitation
High	CVE-2026-28780	httpd: Heap-based Buffer Overflow vulnerability in mod_proxy_ajp of Apache HTTP Server. If mod_proxy_ajp connects to a malic...	9.8	0.0138	None reported
High	CVE-2026-34355	Apache HTTP Server: mod_proxy_html buffer overflow	7.7	0.0116	None reported
High	CVE-2026-42536	Apache HTTP Server: mod_xml2enc heap overflow	7.7	0.0102	None reported
High	CVE-2024-42516	Apache HTTP Server: HTTP response splitting	7.7	0.0082	None reported
High	CVE-2026-44185	Apache HTTP Server: Stack Buffer Over-Read in mod_ssl OCSP `send_request`	7.7	0.0074	None reported
High	CVE-2026-34356	Apache HTTP Server: ProxyPassReverseCookieMap buffer overflow	7.7	0.0071	None reported
High	CVE-2026-29169	Apache HTTP Server: mod_dav_lock indirect lock crash	7.7	0.0059	None reported
High	CVE-2026-33007	Apache HTTP Server: mod_authn_socache crash	8.2	0.0051	None reported
High	CVE-2026-44631	Apache HTTP Server: Heap Underflow in `ap_regname` via Signed Char Overflow	9.8	0.0050	None reported
High	CVE-2026-34032	Apache HTTP Server: mod_proxy_ajp: Heap Buffer Over-Read Due to Missing Null-Termination Check (ajp_msg_get_string)	8.2	0.0049	None reported
High	CVE-2026-34059	Apache HTTP Server: mod_proxy_ajp: Heap Over-Read and memory disclosure in ajp_parse_data()	8.2	0.0039	None reported
High	CVE-2026-33857	Apache HTTP Server: Off-by-one OOB reads in AJP getter functions	8.2	0.0039	None reported

Also fixes CVE-2026-28780

SUSE-SU-2026:22209-1
apache2, apache2-devel, apache2-event and 4 more on sles 16.0
OPENSUSE-SU-2026:21115-1
apache2, apache2-devel, apache2-event and 4 more on opensuse-leap 16.0
apache2 2.4.66-2ubuntu2.1
apache2 on Ubuntu 26.04.1 LTS (resolute)
apache2-bin 2.4.66-2ubuntu2.1
apache2-bin on Ubuntu 26.04.1 LTS (resolute)
apache2-data 2.4.66-2ubuntu2.1
apache2-data on Ubuntu 26.04.1 LTS (resolute)
apache2-suexec-custom 2.4.66-2ubuntu2.1
apache2-suexec-custom on Ubuntu 26.04.1 LTS (resolute)
apache2-suexec-pristine 2.4.66-2ubuntu2.1
apache2-suexec-pristine on Ubuntu 26.04.1 LTS (resolute)
apache2-utils 2.4.66-2ubuntu2.1
apache2-utils on Ubuntu 26.04.1 LTS (resolute)

Vendor advisory

https://access.redhat.com/errata/RHSA-2026:47046

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