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TI-2026-19399 Aliases CVE-2026-24072GHSA-9pw3-5ggm-c92r

Apache HTTP Server: mod_rewrite elevation of privileges via ap_expr

Priority MEDIUM 41CWE-269Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Privilege escalation
Confidentiality · integrity · availability
High · High · High
Fix status
Partial Red Hat: 6 fixed, 3 without a fix

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA and Red Hat. Impact type from CWE-269.

Summary

An escalation of privilege bug in various modules in Apache HTTP 2.4.66 and earlier allows local .htaccess authors to read files with the privileges of the httpd user. Users are recommended to upgrade to version 2.4.67, which fixes this issue.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00654 51st percentileScored 2026-11-07
Fix Partial Red Hat: 6 advisoriesRed Hat: 6 fixed, 3 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

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 Serverup to 2.4.66—No fix listedCNA
  • Apache HTTP Server VendorApache Affected up to 2.4.66 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:apache:http_server:*:*:*:*:*:*:*:*before 2.4.67VulnerableApache
  • cpe:2.3:a:apache:http_server:*:*:*:*:*:*:*:* Versions before 2.4.67 Vulnerable ·Apache

Remediation

Red Hat 6 advisories

  • 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
Show 3 more Red Hat advisories
  • 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
  • RHSA-2026:13938 Released 2026-05-06 · Red Hat rating Important
    Red Hat Hardened Images RPMs bug fix and enhancement update
    • Red Hat Hardened Images httpd-2.4.67-0.1.hum1@aarch64, httpd-2.4.67-0.1.hum1@src, httpd-2.4.67-0.1.hum1@x86_64 +10

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 7AffectedNo fix planned: Out of support scope
Red Hat Enterprise Linux 8AffectedNo fix yet: Fix deferred
Red Hat Enterprise Linux AppStream (v. 10)Fixed RHSA-2026:34109
Red Hat Enterprise Linux AppStream (v. 9)Fixed RHSA-2026:41906
Red Hat Hardened ImagesFixed RHSA-2026:13938
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: 2 products
  • Red Hat Hardened Images
  • Red Hat JBoss Core Services on RHEL 8

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-24072
  2. 2026-10-03 Alias added: GHSA-9pw3-5ggm-c92r
  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. 2026-10-13 EPSS moved to the 50th–90th percentile
  6. 2026-10-16 Affected versions changed · Red Hat

References

Advisory 2

  • 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

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