Vulnerabilities
Misconfiguration
Compliance
CVE Vulnerabilities

CVE-2026-33007

NULL Pointer Dereference

Published: May 04, 2026 | Modified: Jun 17, 2026
CVSS 3.x
N/A
Source:
NVD
CVSS 2.x
RedHat/V2
RedHat/V3
5.3 MODERATE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Ubuntu
LOW
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Additional information
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2026-33007
CWEhttps://cwe.mitre.org/data/definitions/476.html

A NULL pointer dereference in the mod_authn_socache in Apache HTTP Server 2.4.66 and earlier allows an unauthenticated remote user to crash a child process in a caching forward proxy configuration.

Users are recommended to upgrade to version 2.4.67, which fixes this issue.

Weakness

The product dereferences a pointer that it expects to be valid but is NULL.

Affected Software

NameVendorStart VersionEnd Version
Http_serverApache2.4.0 (including)2.4.67 (excluding)
JBoss Core Services for RHEL 8RedHatjbcs-httpd24-httpd-0:2.4.62-13.el8jbcs*
JBoss Core Services on RHEL 7RedHatjbcs-httpd24-httpd-0:2.4.62-13.el7jbcs*
Red Hat Enterprise Linux 10RedHathttpd-0:2.4.63-13.el10_2.1*
Red Hat Enterprise Linux 8RedHathttpd:2.4-8100020260519200905.489197e6*
Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update SupportRedHathttpd:2.4-8040020260702193120.522a0ee4*
Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-OnRedHathttpd:2.4-8040020260702193120.522a0ee4*
Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update SupportRedHathttpd:2.4-8060020260702195216.ad008a3a*
Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-OnRedHathttpd:2.4-8060020260702195216.ad008a3a*
Red Hat Enterprise Linux 8.8 Telecommunications Update ServiceRedHathttpd:2.4-8080020260702200145.63b34585*
Red Hat Enterprise Linux 8.8 Update Services for SAP SolutionsRedHathttpd:2.4-8080020260702200145.63b34585*
Red Hat Enterprise Linux 9RedHathttpd-0:2.4.62-13.el9_8.1*
Red Hat JBoss Core Services 2.4.62.SP4RedHatmod_authn_socache.so*
Red Hat Hardened ImagesRedHathttpd-main-2.4.67-0.1.hum1*
Apache2Ubuntudevel*
Apache2Ubuntuesm-infra/xenial*
Apache2Ubuntujammy*
Apache2Ubuntunoble*
Apache2Ubuntuquesting*
Apache2Ubunturesolute*
Apache2Ubuntuupstream*

Potential Mitigations

References

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