HTTP request smuggling vulnerability in Apache HTTP Server 2.4.52 and earlier
Priority HIGH 65CWE-444Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Partial Red Hat: 32 fixed, 1 without a fix
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat.
Summary
Apache HTTP Server 2.4.52 and earlier fails to close inbound connection when errors are encountered discarding the request body, exposing the server to HTTP Request Smuggling
Why it matters now
EPSS 0.28189 98th percentileScored 2026-11-07
Fix Partial Red Hat: 13 advisoriesRed Hat: 32 fixed, 1 without a fix
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Apache | Apache HTTP Server | Apache HTTP Server 2.4 – 2.4.52 | — | No fix listed | CNA |
- Apache HTTP Server VendorApache Affected Apache HTTP Server 2.4 – 2.4.52 Fixed in — No fix listed CNA
CPE configurations NVD · 22
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:apache:http_server:*:*:*:*:*:*:*:* | up to 2.4.52 | Vulnerable | Apache |
| cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:* | 34 | Vulnerable | Fedoraproject |
| cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:* | 35 | Vulnerable | Fedoraproject |
| cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:* | 36 | Vulnerable | Fedoraproject |
| cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* | 9.0 | Vulnerable | Debian |
| cpe:2.3:a:oracle:enterprise_manager_ops_center:12.4.0.0:*:*:*:*:*:*:* | 12.4.0.0 | Vulnerable | Oracle |
| cpe:2.3:a:oracle:http_server:12.2.1.3.0:*:*:*:*:*:*:* | 12.2.1.3.0 | Vulnerable | Oracle |
| cpe:2.3:a:oracle:http_server:12.2.1.4.0:*:*:*:*:*:*:* | 12.2.1.4.0 | Vulnerable | Oracle |
| cpe:2.3:a:oracle:zfs_storage_appliance_kit:8.8:*:*:*:*:*:*:* | 8.8 | Vulnerable | Oracle |
| cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2020-001:*:*:*:*:*:* | 10.15.7 security_update_2020-001 | Vulnerable | Apple |
- cpe:2.3:a:apache:http_server:*:*:*:*:*:*:*:* Versions up to 2.4.52 Vulnerable ·Apache
- cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:* Versions 34 Vulnerable ·Fedoraproject
- cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:* Versions 35 Vulnerable ·Fedoraproject
- cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:* Versions 36 Vulnerable ·Fedoraproject
- cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* Versions 9.0 Vulnerable ·Debian
- cpe:2.3:a:oracle:enterprise_manager_ops_center:12.4.0.0:*:*:*:*:*:*:* Versions 12.4.0.0 Vulnerable ·Oracle
- cpe:2.3:a:oracle:http_server:12.2.1.3.0:*:*:*:*:*:*:* Versions 12.2.1.3.0 Vulnerable ·Oracle
- cpe:2.3:a:oracle:http_server:12.2.1.4.0:*:*:*:*:*:*:* Versions 12.2.1.4.0 Vulnerable ·Oracle
- cpe:2.3:a:oracle:zfs_storage_appliance_kit:8.8:*:*:*:*:*:*:* Versions 8.8 Vulnerable ·Oracle
- cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2020-001:*:*:*:*:*:* Versions 10.15.7 security_update_2020-001 Vulnerable ·Apple
Show 12 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-001:*:*:*:*:*:* | 10.15.7 security_update_2021-001 | Vulnerable | Apple |
| cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-002:*:*:*:*:*:* | 10.15.7 security_update_2021-002 | Vulnerable | Apple |
| cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-003:*:*:*:*:*:* | 10.15.7 security_update_2021-003 | Vulnerable | Apple |
| cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-004:*:*:*:*:*:* | 10.15.7 security_update_2021-004 | Vulnerable | Apple |
| cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-005:*:*:*:*:*:* | 10.15.7 security_update_2021-005 | Vulnerable | Apple |
| cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-006:*:*:*:*:*:* | 10.15.7 security_update_2021-006 | Vulnerable | Apple |
| cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-007:*:*:*:*:*:* | 10.15.7 security_update_2021-007 | Vulnerable | Apple |
| cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-008:*:*:*:*:*:* | 10.15.7 security_update_2021-008 | Vulnerable | Apple |
| cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2022-001:*:*:*:*:*:* | 10.15.7 security_update_2022-001 | Vulnerable | Apple |
| cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2022-002:*:*:*:*:*:* | 10.15.7 security_update_2022-002 | Vulnerable | Apple |
| cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2022-003:*:*:*:*:*:* | 10.15.7 security_update_2022-003 | Vulnerable | Apple |
| cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:* | before 10.15.7; 11.0 to before 11.6.6; 12.0 – 12.4 | Vulnerable | Apple |
- cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-001:*:*:*:*:*:* Versions 10.15.7 security_update_2021-001 Vulnerable ·Apple
- cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-002:*:*:*:*:*:* Versions 10.15.7 security_update_2021-002 Vulnerable ·Apple
- cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-003:*:*:*:*:*:* Versions 10.15.7 security_update_2021-003 Vulnerable ·Apple
- cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-004:*:*:*:*:*:* Versions 10.15.7 security_update_2021-004 Vulnerable ·Apple
- cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-005:*:*:*:*:*:* Versions 10.15.7 security_update_2021-005 Vulnerable ·Apple
- cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-006:*:*:*:*:*:* Versions 10.15.7 security_update_2021-006 Vulnerable ·Apple
- cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-007:*:*:*:*:*:* Versions 10.15.7 security_update_2021-007 Vulnerable ·Apple
- cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-008:*:*:*:*:*:* Versions 10.15.7 security_update_2021-008 Vulnerable ·Apple
- cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2022-001:*:*:*:*:*:* Versions 10.15.7 security_update_2022-001 Vulnerable ·Apple
- cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2022-002:*:*:*:*:*:* Versions 10.15.7 security_update_2022-002 Vulnerable ·Apple
- cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2022-003:*:*:*:*:*:* Versions 10.15.7 security_update_2022-003 Vulnerable ·Apple
- cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:* Versions before 10.15.7; 11.0 to before 11.6.6; 12.0 – 12.4 Vulnerable ·Apple
Remediation
Red Hat 13 advisories
- RHSA-2022:1389 Released 2022-04-20 · Red Hat rating ImportantRed Hat JBoss Core Services Apache HTTP Server 2.4.37 SP11 security update
- Red Hat JBoss Core Services on RHEL 7 Server jbcs-httpd24-apr-util-1.6.1-91.jbcs.el7, jbcs-httpd24-apr-util-devel-1.6.1-91.jbcs.el7, jbcs-httpd24-apr-util-ldap-1.6.1-91.jbcs.el7 +34
- Red Hat JBoss Core Services on RHEL 8 jbcs-httpd24-apr-util-1.6.1-91.el8jbcs, jbcs-httpd24-apr-util-devel-1.6.1-91.el8jbcs, jbcs-httpd24-apr-util-ldap-1.6.1-91.el8jbcs +34
- RHSA-2022:1390 Released 2022-04-20 · Red Hat rating ImportantRed Hat JBoss Core Services Apache HTTP Server 2.4.37 SP11 security update
- Red Hat JBoss Core Services
- RHSA-2022:1173 Released 2022-04-04 · Red Hat rating Importanthttpd security update
- Red Hat Enterprise Linux Server (v. 6 ELS) httpd-2.2.15-70.el6_10, httpd-devel-2.2.15-70.el6_10, httpd-manual-2.2.15-70.el6_10 +2
Show 10 more Red Hat advisories
- RHSA-2022:1136 Released 2022-04-01 · Red Hat rating Importanthttpd security update
- Red Hat Enterprise Linux Server AUS (v. 7.6) httpd-2.4.6-89.el7_6.4, httpd-devel-2.4.6-89.el7_6.4, httpd-manual-2.4.6-89.el7_6.4 +3
- Red Hat Enterprise Linux Server E4S (v. 7.6) httpd-2.4.6-89.el7_6.4, httpd-devel-2.4.6-89.el7_6.4, httpd-manual-2.4.6-89.el7_6.4 +3
- Red Hat Enterprise Linux Server Optional AUS (v. 7.6) mod_ldap-2.4.6-89.el7_6.4, mod_proxy_html-1:2.4.6-89.el7_6.4
- Red Hat Enterprise Linux Server Optional E4S (v. 7.6) mod_ldap-2.4.6-89.el7_6.4, mod_proxy_html-1:2.4.6-89.el7_6.4
- Red Hat Enterprise Linux Server Optional TUS (v. 7.6) mod_ldap-2.4.6-89.el7_6.4, mod_proxy_html-1:2.4.6-89.el7_6.4
- Red Hat Enterprise Linux Server TUS (v. 7.6) httpd-2.4.6-89.el7_6.4, httpd-devel-2.4.6-89.el7_6.4, httpd-manual-2.4.6-89.el7_6.4 +3
- RHSA-2022:1139 Released 2022-04-01 · Red Hat rating Importanthttpd security update
- Red Hat Enterprise Linux Server AUS (v. 7.3) httpd-2.4.6-45.el7_3.8, httpd-devel-2.4.6-45.el7_3.8, httpd-manual-2.4.6-45.el7_3.8 +2
- Red Hat Enterprise Linux Server Optional AUS (v. 7.3) mod_ldap-2.4.6-45.el7_3.8, mod_proxy_html-1:2.4.6-45.el7_3.8, mod_session-2.4.6-45.el7_3.8
- RHSA-2022:1137 Released 2022-04-01 · Red Hat rating Importanthttpd security update
- Red Hat Enterprise Linux Server AUS (v. 7.7) httpd-2.4.6-90.el7_7.3, httpd-devel-2.4.6-90.el7_7.3, httpd-manual-2.4.6-90.el7_7.3 +3
- Red Hat Enterprise Linux Server E4S (v. 7.7) httpd-2.4.6-90.el7_7.3, httpd-devel-2.4.6-90.el7_7.3, httpd-manual-2.4.6-90.el7_7.3 +3
- Red Hat Enterprise Linux Server Optional AUS (v. 7.7) mod_ldap-2.4.6-90.el7_7.3, mod_proxy_html-1:2.4.6-90.el7_7.3
- Red Hat Enterprise Linux Server Optional E4S (v. 7.7) mod_ldap-2.4.6-90.el7_7.3, mod_proxy_html-1:2.4.6-90.el7_7.3
- Red Hat Enterprise Linux Server Optional TUS (v. 7.7) mod_ldap-2.4.6-90.el7_7.3, mod_proxy_html-1:2.4.6-90.el7_7.3
- Red Hat Enterprise Linux Server TUS (v. 7.7) httpd-2.4.6-90.el7_7.3, httpd-devel-2.4.6-90.el7_7.3, httpd-manual-2.4.6-90.el7_7.3 +3
- RHSA-2022:1138 Released 2022-04-01 · Red Hat rating Importanthttpd security update
- Red Hat Enterprise Linux Server AUS (v. 7.4) httpd-2.4.6-67.el7_4.9, httpd-devel-2.4.6-67.el7_4.9, httpd-manual-2.4.6-67.el7_4.9 +3
- Red Hat Enterprise Linux Server Optional AUS (v. 7.4) mod_ldap-2.4.6-67.el7_4.9, mod_proxy_html-1:2.4.6-67.el7_4.9
- RHSA-2022:1102 Released 2022-03-29 · Red Hat rating Importanthttpd:2.4 security update
- Red Hat Enterprise Linux AppStream EUS (v. 8.2) httpd-2.4.37-21.module+el8.2.0+14532+bd4c0f23.4.aarch64::httpd:2.4, httpd-2.4.37-21.module+el8.2.0+14532+bd4c0f23.4.ppc64le::httpd:2.4, httpd-2.4.37-21.module+el8.2.0+14532+bd4c0f23.4.s390x::httpd:2.4 +38
- RHSA-2022:1080 Released 2022-03-28 · Red Hat rating Importanthttpd:2.4 security update
- Red Hat Enterprise Linux AppStream E4S (v. 8.1) httpd-2.4.37-16.module+el8.1.0+14533+ac5a4716.4.ppc64le::httpd:2.4, httpd-2.4.37-16.module+el8.1.0+14533+ac5a4716.4.src::httpd:2.4, httpd-2.4.37-16.module+el8.1.0+14533+ac5a4716.4.x86_64::httpd:2.4 +19
- RHSA-2022:1072 Released 2022-03-28 · Red Hat rating Importanthttpd:2.4 security update
- Red Hat Enterprise Linux AppStream EUS (v.8.4) httpd-2.4.37-39.module+el8.4.0+14531+e1b94dfe.4.aarch64::httpd:2.4, httpd-2.4.37-39.module+el8.4.0+14531+e1b94dfe.4.ppc64le::httpd:2.4, httpd-2.4.37-39.module+el8.4.0+14531+e1b94dfe.4.s390x::httpd:2.4 +38
- RHSA-2022:1075 Released 2022-03-28 · Red Hat rating Importanthttpd24-httpd security update
- Red Hat Software Collections for RHEL Workstation(v. 7) httpd24-httpd-2.4.34-23.el7.2, httpd24-httpd-devel-2.4.34-23.el7.2, httpd24-httpd-manual-2.4.34-23.el7.2 +5
- Red Hat Software Collections for RHEL(v. 7) httpd24-httpd-2.4.34-23.el7.2, httpd24-httpd-devel-2.4.34-23.el7.2, httpd24-httpd-manual-2.4.34-23.el7.2 +5
- RHSA-2022:1049 Released 2022-03-24 · Red Hat rating Importanthttpd:2.4 security update
- Red Hat Enterprise Linux AppStream (v. 8) httpd-2.4.37-43.module+el8.5.0+14530+6f259f31.3.aarch64::httpd:2.4, httpd-2.4.37-43.module+el8.5.0+14530+6f259f31.3.ppc64le::httpd:2.4, httpd-2.4.37-43.module+el8.5.0+14530+6f259f31.3.s390x::httpd:2.4 +38
- RHSA-2022:1045 Released 2022-03-24 · Red Hat rating Importanthttpd security update
- Red Hat Enterprise Linux Client Optional (v. 7) httpd-2.4.6-97.el7_9.5, httpd-devel-2.4.6-97.el7_9.5, httpd-manual-2.4.6-97.el7_9.5 +5
- Red Hat Enterprise Linux ComputeNode Optional (v. 7) httpd-2.4.6-97.el7_9.5, httpd-devel-2.4.6-97.el7_9.5, httpd-manual-2.4.6-97.el7_9.5 +5
- Red Hat Enterprise Linux Server (v. 7) httpd-2.4.6-97.el7_9.5, httpd-devel-2.4.6-97.el7_9.5, httpd-manual-2.4.6-97.el7_9.5 +3
- Red Hat Enterprise Linux Server Optional (v. 7) mod_ldap-2.4.6-97.el7_9.5, mod_proxy_html-1:2.4.6-97.el7_9.5
- Red Hat Enterprise Linux Workstation (v. 7) httpd-2.4.6-97.el7_9.5, httpd-devel-2.4.6-97.el7_9.5, httpd-manual-2.4.6-97.el7_9.5 +3
- Red Hat Enterprise Linux Workstation Optional (v. 7) mod_ldap-2.4.6-97.el7_9.5, mod_proxy_html-1:2.4.6-97.el7_9.5
Vendor assessments
Red Hat
Red Hat rating: Important. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat JBoss Enterprise Application Platform 6 | Affected | No fix planned: Out of support scope |
| Red Hat Enterprise Linux AppStream (v. 8) | Fixed | RHSA-2022:1049 |
| Red Hat Enterprise Linux AppStream E4S (v. 8.1) | Fixed | RHSA-2022:1080 |
| Red Hat Enterprise Linux AppStream EUS (v. 8.2) | Fixed | RHSA-2022:1102 |
| Red Hat Enterprise Linux AppStream EUS (v.8.4) | Fixed | RHSA-2022:1072 |
| Red Hat Enterprise Linux Client Optional (v. 7) | Fixed | RHSA-2022:1045 |
| Red Hat Enterprise Linux ComputeNode Optional (v. 7) | Fixed | RHSA-2022:1045 |
| Red Hat Enterprise Linux Server (v. 6 ELS) | Fixed | RHSA-2022:1173 |
| Red Hat Enterprise Linux Server (v. 7) | Fixed | RHSA-2022:1045 |
| Red Hat Enterprise Linux Server AUS (v. 7.3) | Fixed | RHSA-2022:1139 |
| Red Hat Enterprise Linux Server AUS (v. 7.4) | Fixed | RHSA-2022:1138 |
| Red Hat Enterprise Linux Server AUS (v. 7.6) | Fixed | RHSA-2022:1136 |
| Red Hat Enterprise Linux Server AUS (v. 7.7) | Fixed | RHSA-2022:1137 |
| Red Hat Enterprise Linux Server E4S (v. 7.6) | Fixed | RHSA-2022:1136 |
| Red Hat Enterprise Linux Server E4S (v. 7.7) | Fixed | RHSA-2022:1137 |
| Red Hat Enterprise Linux Server Optional (v. 7) | Fixed | RHSA-2022:1045 |
| Red Hat Enterprise Linux Server Optional AUS (v. 7.3) | Fixed | RHSA-2022:1139 |
| Red Hat Enterprise Linux Server Optional AUS (v. 7.4) | Fixed | RHSA-2022:1138 |
| Red Hat Enterprise Linux Server Optional AUS (v. 7.6) | Fixed | RHSA-2022:1136 |
| Red Hat Enterprise Linux Server Optional AUS (v. 7.7) | Fixed | RHSA-2022:1137 |
| Red Hat Enterprise Linux Server Optional E4S (v. 7.6) | Fixed | RHSA-2022:1136 |
| Red Hat Enterprise Linux Server Optional E4S (v. 7.7) | Fixed | RHSA-2022:1137 |
| Red Hat Enterprise Linux Server Optional TUS (v. 7.6) | Fixed | RHSA-2022:1136 |
| Red Hat Enterprise Linux Server Optional TUS (v. 7.7) | Fixed | RHSA-2022:1137 |
| Red Hat Enterprise Linux Server TUS (v. 7.6) | Fixed | RHSA-2022:1136 |
| Red Hat Enterprise Linux Server TUS (v. 7.7) | Fixed | RHSA-2022:1137 |
| Red Hat Enterprise Linux Workstation (v. 7) | Fixed | RHSA-2022:1045 |
| Red Hat Enterprise Linux Workstation Optional (v. 7) | Fixed | RHSA-2022:1045 |
| Red Hat JBoss Core Services | Fixed | RHSA-2022:1390 |
| Red Hat JBoss Core Services on RHEL 7 Server | Fixed | RHSA-2022:1389 |
| Red Hat JBoss Core Services on RHEL 8 | Fixed | RHSA-2022:1389 |
| Red Hat Software Collections for RHEL Workstation(v. 7) | Fixed | RHSA-2022:1075 |
| Red Hat Software Collections for RHEL(v. 7) | Fixed | RHSA-2022:1075 |
Not affected: 1 product
- Red Hat Enterprise Linux 9
Timeline
- 2026-10-02 Threatist record created from CVE-2022-22720
- 2026-10-03 Alias added: GHSA-2hwm-6xjf-3xmx
- 2026-10-09 Fix available: RHSA-2022:1390 · Red Hat
- 2026-10-09 Fix available: Red Hat JBoss Core Services · Red Hat
References
Advisory 15
- https://httpd.apache.org/security/vulnerabilities_24.html
- [oss-security] 20220314 CVE-2022-22720: HTTP request smuggling vulnerability in Apache HTTP Server 2.4.52 and earlier
- FEDORA-2022-b4103753e9
- [debian-lts-announce] 20220322 [SECURITY] [DLA 2960-1] apache2 security update
- FEDORA-2022-21264ec6db
- FEDORA-2022-78e3211c55
- https://security.netapp.com/advisory/ntap-20220321-0001/
- 20220516 APPLE-SA-2022-05-16-4 Security Update 2022-004 Catalina
- 20220516 APPLE-SA-2022-05-16-3 macOS Big Sur 11.6.6
- 20220516 APPLE-SA-2022-05-16-2 macOS Monterey 12.4
- https://www.oracle.com/security-alerts/cpujul2022.html
- https://support.apple.com/kb/HT213257
- https://support.apple.com/kb/HT213256
- https://support.apple.com/kb/HT213255
- GLSA-202208-20
More Apache Http Server vulnerabilities
- TI-2021-18535 Path Traversal and Remote Code Execution in Apache HTTP Server 2.4.49 and 2.4.50 (incomplete fix of CVE-2021-41773) KEVCVSS 3.1CRITICAL 9.8
- TI-2021-18417 Path traversal and file disclosure vulnerability in Apache HTTP Server 2.4.49 KEVCVSS 3.1CRITICAL 9.8
- TI-2024-25716 Apache HTTP Server weakness in mod_rewrite when first segment of substitution matches filesystem path. KEVCVSS 3.1CRITICAL 9.1
- TI-2021-17490 mod_proxy SSRF KEVCVSS 3.1CRITICAL 9.0
- TI-2019-00184 Use after free in Apache HTTP Server KEVCVSS 3.1HIGH 7.8
- TI-2009-03392 The TLS protocol, and the SSL protocol 3.0 and possibly earlier, as used in Microsoft… CVSS 3.1CRITICAL 9.8
Sources
- CVE-2022-22720 · CVE Program
- CVE-2022-22720 · NVD
- FIRST EPSS
- GHSA-2hwm-6xjf-3xmx · GitHub Advisory Database · CC BY 4.0
- CVE-2022-22720 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences