Description
HTTP Response splitting in multiple modules in Apache HTTP Server allows an attacker that can inject malicious response headers into backend applications to cause an HTTP desynchronization attack.
Users are recommended to upgrade to version 2.4.59, which fixes this issue.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Apache Software Foundation | Apache HTTP Server | 2.4.0 – ≤ 2.4.58 | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | apache2 | 2.4.59-1 | — |
| Debian 14 | uwsgi | No fix yet | — |
| Debian 13 | apache2 | 2.4.59-1 | — |
| Debian 13 | uwsgi | No fix yet | — |
| Debian 12 | apache2 | 2.4.59-1~deb12u1 | DSA-5662-1 |
| Debian 12 | uwsgi | No fix yet | — |
| Debian 11 | apache2 | 2.4.59-1~deb11u1 | DSA-5662-1 |
| Debian 10 | apache2 | 2.4.59-1~deb10u1 | DLA-3818-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 24.04 LTS | apache2 | 2.4.58-1ubuntu8.1 | USN-6729-3 |
| Ubuntu 22.04 LTS | apache2 | 2.4.52-1ubuntu4.9 | USN-6729-1 |
| Ubuntu 20.04 LTS | apache2 | 2.4.41-4ubuntu3.17 | USN-6729-1 |
Show 4 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 20.04 LTS | apache2 | 2.4.41-4ubuntu3.23+esm3 | USN-8338-1 |
| Ubuntu Pro 18.04 LTS | apache2 | 2.4.29-1ubuntu4.27+esm2 | USN-8338-1, USN-6729-2 |
| Ubuntu Pro 16.04 LTS | apache2 | 2.4.18-2ubuntu3.17+esm12 | USN-8338-1, USN-6729-2 |
| Ubuntu Pro 14.04 LTS | apache2 | 2.4.7-1ubuntu4.22+esm12 | USN-8338-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 9 | httpd +8 | 2.4.62-1.el9 | RHSA-2024:9306 |
| RHEL 9 | mod_ssl +1 | 1:2.4.62-1.el9 | RHSA-2024:9306 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Red Hat JBoss Core Services 1 | jbcs-httpd24-httpd +6 | 2.4.62-5.el7jbcs | RHSA-2025:3452 |
| Red Hat JBoss Core Services 1 | jbcs-httpd24-mod_http2 | 2.0.29-3.el7jbcs | RHSA-2025:3452 |
| Red Hat JBoss Core Services 1 | jbcs-httpd24-mod_ssl +1 | 1:2.4.62-5.el7jbcs | RHSA-2025:3452 |
| Red Hat JBoss Core Services 1 | jbcs-httpd24-openssl +4 | 1:1.1.1k-19.el7jbcs | RHSA-2025:3452 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 9 | httpd +8 | 2.4.62-1.el9 | ALSA-2024:9306 |
| AlmaLinux 9 | mod_ssl +1 | 1:2.4.62-1.el9 | ALSA-2024:9306 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 9 | httpd | 2.4.62-1.el9 | RLSA-2024:9306 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP6 | apache2 | 2.4.51-150400.6.17.1 | SUSE-SU-2024:1963-1, SUSE-SU-2024:1868-1 |
| SLES 15 SP6 | apache2-devel +4 | 2.4.58-150600.5.3.1 | SUSE-SU-2024:1963-1 |
| SLES 15 SP6 | uwsgi | 2.0.19.1-150300.3.3.1 | SUSE-SU-2024:3861-1, SUSE-SU-2024:3853-1 |
| SLES 15 SP5 | apache2 | 2.4.51-150400.6.17.1 | SUSE-SU-2026:2686-1, SUSE-SU-2024:1868-1 |
| SLES 15 SP5 | uwsgi | 2.0.19.1-150300.3.3.1 | SUSE-SU-2024:3861-1, SUSE-SU-2024:3853-1 |
| SLES 15 SP4 | apache2 | 2.4.51-150400.6.17.1 | SUSE-SU-2026:2686-1, SUSE-SU-2024:1868-1 |
| SLES 15 SP3 | apache2 | 2.4.51-150200.3.62.1 | SUSE-SU-2024:1788-1 |
| SLES 15 SP2 | apache2 | 2.4.51-150200.3.62.1 | SUSE-SU-2024:1788-1 |
Show 13 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP5 | apache2 +1 | 2.4.51-35.41.1 | SUSE-SU-2024:1627-1 |
| SLES for SAP 15 SP5 | apache2 | 2.4.66-150400.6.57.1 | SUSE-SU-2026:2686-1 |
| SLES for SAP 15 SP4 | apache2 | 2.4.51-150400.6.17.1 | SUSE-SU-2026:2686-1, SUSE-SU-2024:1868-1 |
| SLES for SAP 15 SP3 | apache2 | 2.4.51-150200.3.62.1 | SUSE-SU-2024:1788-1 |
| SLES for SAP 15 SP2 | apache2 | 2.4.51-150200.3.62.1 | SUSE-SU-2024:1788-1 |
| SLES for SAP 12 SP5 | apache2 +1 | 2.4.51-35.41.1 | SUSE-SU-2024:1627-1 |
| SLE HPC 15 SP5 | apache2 | 2.4.66-150400.6.57.1 | SUSE-SU-2026:2686-1 |
| SLE HPC 15 SP4 | apache2 | 2.4.51-150400.6.17.1 | SUSE-SU-2026:2686-1, SUSE-SU-2024:1868-1 |
| SLE HPC 15 SP3 | apache2 | 2.4.51-150200.3.62.1 | SUSE-SU-2024:1788-1 |
| SLE HPC 15 SP2 | apache2 | 2.4.51-150200.3.62.1 | SUSE-SU-2024:1788-1 |
| SUSE Manager Server 4.3 | apache2 | 2.4.51-150400.6.17.1 | SUSE-SU-2024:1868-1 |
| SUSE Manager Proxy 4.3 | apache2 | 2.4.51-150400.6.17.1 | SUSE-SU-2024:1868-1 |
| SUSE Enterprise Storage 7.1 | apache2 | 2.4.51-150200.3.62.1 | SUSE-SU-2024:1788-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | uwsgi | 2.0.28-1.1 | openSUSE-SU-2024:14463-1 |
| openSUSE Leap 15.6 | apache2 +6 | 2.4.58-150600.5.3.1 | SUSE-SU-2024:1963-1 |
| openSUSE Leap 15.6 | uwsgi | 2.0.19.1-150400.8.3.1 | SUSE-SU-2024:3861-1 |
| openSUSE Leap 15.5 | apache2 | 2.4.51-150400.6.17.1 | SUSE-SU-2024:1868-1 |
| openSUSE Leap 15.5 | uwsgi | 2.0.19.1-150400.8.3.1 | SUSE-SU-2024:3861-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | apache2 | 2.4.59-r0 | — |
| Alpine v3.23 | apache2 | 2.4.59-r0 | — |
| Alpine v3.22 | apache2 | 2.4.59-r0 | — |
| Alpine v3.21 | apache2 | 2.4.59-r0 | — |
| Alpine v3.20 | apache2 | 2.4.59-r0 | — |
Show 4 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | apache2 | 2.4.59-r0 | — |
| Alpine v3.18 | apache2 | 2.4.59-r0 | — |
| Alpine v3.17 | apache2 | 2.4.59-r0 | — |
| Alpine v3.16 | apache2 | 2.4.59-r0 | — |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2023 | httpd +8 | 2.4.59-2.amzn2023 | ALAS2023-2024-607 |
| Amazon Linux 2023 | mod_ssl +1 | 1:2.4.59-2.amzn2023 | ALAS2023-2024-607 |
| Amazon Linux 2 | httpd +7 | 2.4.59-1.amzn2 | ALAS2-2024-2532 |
| Amazon Linux 2 | mod_ssl +1 | 1:2.4.59-1.amzn2 | ALAS2-2024-2532 |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 3 | httpd | 2.4.61-1 | — |
| Azure Linux 2 (CBL-Mariner) | httpd | 2.4.59-1 | — |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 9 | httpd +8 | 2.4.62-1.0.1.el9 | ELSA-2024-9306 |
| Oracle Linux 9 | mod_ssl +1 | 1:2.4.62-1.0.1.el9 | ELSA-2024-9306 |
Advisories 28
- WID-SEC-2024-0801 Apache HTTP Server: Mehrere Schwachstellen ermöglichen Manipulation von Daten BSI CERT-Bund (WID) · Nov 11, 2026
- ALSA-2024:9306 Moderate: httpd security update AlmaLinux Security Advisories · Oct 29, 2026
- RHSA-2025:3452 Red Hat Security Advisory: Red Hat JBoss Core Services Apache HTTP Server 2.4.62 security update Red Hat Security Advisories (RHSA) · Oct 9, 2026
- RHSA-2024:9306 Red Hat Security Advisory: httpd security update Red Hat Security Advisories (RHSA) · Sep 21, 2026
- SUSE-SU-2026:2686-1 Security update for apache2 SUSE / openSUSE Security Updates · Jul 1, 2026
- USN-6729-2 apache2 vulnerabilities Ubuntu Security Notices (USN) · Jun 25, 2026
- USN-8338-1 apache2 vulnerabilities Ubuntu Security Notices (USN) · May 29, 2026
- USN-6729-3 apache2 vulnerabilities Ubuntu Security Notices (USN) · Apr 27, 2026
- USN-6729-1 apache2 vulnerabilities Ubuntu Security Notices (USN) · Apr 27, 2026
- DSA-5662-1 apache2 - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-3818-1 apache2 - security update Debian Security (DSA / DLA) · Mar 9, 2026
- RLSA-2024:9306 Moderate: httpd security update Rocky Linux Security Advisories · Feb 5, 2026
- SUSE-SU-2024:3861-1 Security update for uwsgi SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:1788-1 Security update for apache2 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:3853-1 Security update for uwsgi SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:1963-1 Security update for apache2 SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:14463-1 apache2-mod_uwsgi-2.0.28-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:1868-1 Security update for apache2 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:1627-1 Security update for apache2 SUSE / openSUSE Security Updates · Feb 4, 2026
- WID-SEC-2024-1725 Apple macOS: Mehrere Schwachstellen BSI CERT-Bund (WID) · Jan 11, 2026
- WID-SEC-2024-1248 Xerox FreeFlow Print Server: Mehrere Schwachstellen BSI CERT-Bund (WID) · Nov 21, 2024
- ELSA-2024-9306 Moderate: httpd security update (Oracle Linux 9) Oracle Linux Security Advisories (ELSA) · Nov 14, 2024
- NCSC-2024-0433 Kwetsbaarheden verholpen in Siemens producten NCSC-NL (Netherlands) · Nov 12, 2024
- SSA-331112 SSA-331112: Multiple Vulnerabilities in SINEC NMS Before V3.0 SP1 Siemens ProductCERT · Nov 12, 2024
- ICSA-24-319-04 Siemens SINEC NMS CISA ICS & IT advisories · Nov 12, 2024
- NCSC-2024-0320 Kwetsbaarheden verholpen in Apple MacOS NCSC-NL (Netherlands) · Jul 30, 2024
- ALAS2023-2024-607 Moderate: httpd security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · Apr 25, 2024
- ALAS2-2024-2532 Moderate: httpd security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Apr 24, 2024
References
- https://httpd.apache.org/security/vulnerabilities_24.html vendor-advisory