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TI-2024-28481 Aliases CVE-2024-42516GHSA-5j7h-7m92-jgh4

Apache HTTP Server: HTTP response splitting

Priority MEDIUM 40CWE-20Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
None · High · None
Fix status
Partial Red Hat: 12 fixed, 1 without a fix

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA and Red Hat.

Summary

HTTP response splitting in the core of Apache HTTP Server allows an attacker who can manipulate the Content-Type response headers of applications hosted or proxied by the server can split the HTTP response. This vulnerability was described as CVE-2023-38709 but the patch included in Apache HTTP Server 2.4.59 did not address the issue. Users are recommended to upgrade to version 2.4.64, which fixes this issue.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00818 57th percentileScored 2026-11-07
Fix Partial Red Hat: 11 advisoriesRed Hat: 12 fixed, 1 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
ApacheApache HTTP Server2.4.0 – 2.4.63—No fix listedCNA
  • Apache HTTP Server VendorApache Affected 2.4.0 – 2.4.63 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:apache:http_server:*:*:*:*:*:*:*:*2.4.0 to before 2.4.64VulnerableApache
  • cpe:2.3:a:apache:http_server:*:*:*:*:*:*:*:* Versions 2.4.0 to before 2.4.64 Vulnerable ·Apache

Remediation

Red Hat 11 advisories

  • RHSA-2026:92590 Released 2026-10-29 · Red Hat rating Important
    httpd security update
    • Red Hat Enterprise Linux Server (v. 7 ELS) httpd-2.4.6-99.el7_9.8, mod_ssl-1:2.4.6-99.el7_9.8
    • Red Hat Enterprise Linux Server Optional (v. 7 ELS) mod_proxy_html-1:2.4.6-99.el7_9.8
  • RHSA-2026:67152 Released 2026-09-14 · Red Hat rating Important
    httpd security update
    • Red Hat Enterprise Linux AppStream E4S (v.9.2) httpd-2.4.53-11.el9_2.15, httpd-core-2.4.53-11.el9_2.15, mod_ldap-2.4.53-11.el9_2.15 +2
  • RHSA-2026:66323 Released 2026-09-10 · Red Hat rating Important
    httpd security update
    • Red Hat Enterprise Linux AppStream E4S (v.9.4) httpd-2.4.57-11.el9_4.5, httpd-core-2.4.57-11.el9_4.5, mod_ldap-2.4.57-11.el9_4.5 +2
Show 8 more Red Hat advisories
  • RHSA-2026:62165 Released 2026-09-01 · Red Hat rating Important
    httpd security update
    • Red Hat Enterprise Linux AppStream EUS (v.9.6) httpd-2.4.62-4.el9_6.6, httpd-core-2.4.62-4.el9_6.6, httpd-devel-2.4.62-4.el9_6.6 +8
  • RHSA-2026:56868 Released 2026-08-19 · Red Hat rating Important
    Red Hat JBoss Core Services Apache HTTP Server 2.4.62 SP5 security update
    • Red Hat JBoss Core Services on RHEL 8 jbcs-httpd24-httpd-2.4.62-16.el8jbcs, jbcs-httpd24-httpd-devel-2.4.62-16.el8jbcs, jbcs-httpd24-httpd-manual-2.4.62-16.el8jbcs +7
  • RHSA-2026:56869 Released 2026-08-19 · Red Hat rating Important
    Red Hat JBoss Core Services Apache HTTP Server 2.4.62 SP5 security update
    • Red Hat JBoss Core Services 2.4.62.SP5
  • RHSA-2026:53371 Released 2026-08-11 · Red Hat rating Important
    Insights proxy Container Image
    • Red Hat Insights proxy 1.5 registry.redhat.io/insights-proxy/insights-proxy-container-rhel9
  • RHSA-2026:47046 Released 2026-07-28 · Red Hat rating Important
    httpd security update
    • Red Hat Enterprise Linux AppStream EUS (v. 10.0) httpd-2.4.63-1.el10_0.4, httpd-core-2.4.63-1.el10_0.4, httpd-devel-2.4.63-1.el10_0.4 +8
  • RHSA-2026:42828 Released 2026-07-21 · Red Hat rating Important
    httpd:2.4 security, bug fix, and enhancement update
    • Red Hat Enterprise Linux AppStream (v. 8) httpd-2.4.37-65.module+el8.10.0+24521+219dcfc5.9.aarch64::httpd:2.4, httpd-2.4.37-65.module+el8.10.0+24521+219dcfc5.9.ppc64le::httpd:2.4, httpd-2.4.37-65.module+el8.10.0+24521+219dcfc5.9.s390x::httpd:2.4 +38
  • RHSA-2026:41906 Released 2026-07-20 · Red Hat rating Important
    httpd security, bug fix, and enhancement update
    • Red Hat Enterprise Linux AppStream (v. 9) httpd-2.4.62-13.el9_8.5, httpd-core-2.4.62-13.el9_8.5, httpd-devel-2.4.62-13.el9_8.5 +8
  • RHSA-2026:34109 Released 2026-07-01 · Red Hat rating Important
    httpd security, bug fix, and enhancement update
    • Red Hat Enterprise Linux AppStream (v. 10) httpd-2.4.63-13.el10_2.4, httpd-core-2.4.63-13.el10_2.4, httpd-devel-2.4.63-13.el10_2.4 +8

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux 6AffectedNo fix planned: Out of support scope
Red Hat Enterprise Linux AppStream (v. 10)Fixed RHSA-2026:34109
Red Hat Enterprise Linux AppStream (v. 8)Fixed RHSA-2026:42828
Red Hat Enterprise Linux AppStream (v. 9)Fixed RHSA-2026:41906
Red Hat Enterprise Linux AppStream E4S (v.9.2)Fixed RHSA-2026:67152
Red Hat Enterprise Linux AppStream E4S (v.9.4)Fixed RHSA-2026:66323
Red Hat Enterprise Linux AppStream EUS (v. 10.0)Fixed RHSA-2026:47046
Red Hat Enterprise Linux AppStream EUS (v.9.6)Fixed RHSA-2026:62165
Red Hat Enterprise Linux Server (v. 7 ELS)Fixed RHSA-2026:92590
Red Hat Enterprise Linux Server Optional (v. 7 ELS)Fixed RHSA-2026:92590
Red Hat Insights proxy 1.5Fixed RHSA-2026:53371
Red Hat JBoss Core Services 2.4.62.SP5Fixed RHSA-2026:56869
Red Hat JBoss Core Services on RHEL 8Fixed RHSA-2026:56868
Not affected: 6 products
  • Red Hat Enterprise Linux AppStream E4S (v.9.2)
  • Red Hat Enterprise Linux AppStream E4S (v.9.4)
  • Red Hat Enterprise Linux Server (v. 7 ELS)
  • Red Hat Enterprise Linux Server Optional (v. 7 ELS)
  • Red Hat Hardened Images
  • Red Hat JBoss Core Services on RHEL 8

Timeline

  1. 2026-10-02 Threatist record created from CVE-2024-42516
  2. 2026-10-03 Alias added: GHSA-5j7h-7m92-jgh4
  3. 2026-10-09 Fix available: RHSA-2026:56869 · Red Hat
  4. 2026-10-09 Fix available: Red Hat JBoss Core Services 2.4.62.SP5 · Red Hat
  5. 2026-10-16 Affected versions changed · Red Hat
  6. 2026-10-30 Fix available: RHSA-2026:92590 · Red Hat
  7. 2026-10-30 Fix available: Red Hat Enterprise Linux Server (v. 7 ELS), Red Hat Enterprise Linux Server Optional (v. 7 ELS) · Red Hat

References

Advisory 1

  • 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
See all 349 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences