CVE-2026-44185

HIGH

7.3

CVSS v3

Description

Buffer Over-read vulnerability in Apache HTTP Server via outbound OCSP requests to an attacker controlled OCSP server This issue affects Apache HTTP Server: from 2.4.0 through 2.4.67. Users are recommended to upgrade to version 2.4.68, which fixes the issue.

CWE-126Buffer Over-read CWE-125Out-of-bounds Read

How to fix

Remediation Available

apache2Debian

Fixed in:2.4.67-1~deb11u3CVE-2026-44185

Fixed in:2.4.68-1~deb12u1CVE-2026-44185

Fixed in:2.4.68-1~deb13u1CVE-2026-44185

Fixed in:2.4.68-1CVE-2026-44185

httpdRed Hat / RHEL

Fixed in:0:2.4.63-1.el10_0.4RHSA-2026:47046

Fixed in:0:2.4.63-13.el10_2.4RHSA-2026:34109

Fixed in:0:2.4.63-1.el10_0.4RHSA-2026:47046

httpdRocky

Fixed in:0:2.4.63-1.el10_0.4RHSA-2026:47046

Fixed in:0:2.4.63-13.el10_2.4RHSA-2026:34109

Fixed in:0:2.4.63-1.el10_0.4RHSA-2026:47046

Fixed in:0:2.4.63-13.el10_2.4RHSA-2026:34109

httpd-coreRed Hat / RHEL

Fixed in:0:2.4.63-1.el10_0.4RHSA-2026:47046

Fixed in:0:2.4.63-13.el10_2.4RHSA-2026:34109

Fixed in:0:2.4.63-1.el10_0.4RHSA-2026:47046

httpd-coreRocky

Fixed in:0:2.4.63-13.el10_2.4RHSA-2026:34109

Fixed in:0:2.4.63-1.el10_0.4RHSA-2026:47046

Fixed in:0:2.4.63-13.el10_2.4RHSA-2026:34109

Fixed in:0:2.4.63-1.el10_0.4RHSA-2026:47046

httpd-core-debuginfoRocky

Fixed in:0:2.4.63-13.el10_2.4RHSA-2026:34109

Fixed in:0:2.4.63-1.el10_0.4RHSA-2026:47046

Fixed in:0:2.4.63-13.el10_2.4RHSA-2026:34109

httpd-core-debuginfoRed Hat / RHEL

Fixed in:0:2.4.63-1.el10_0.4RHSA-2026:47046

Fixed in:0:2.4.63-13.el10_2.4RHSA-2026:34109

Fixed in:0:2.4.63-1.el10_0.4RHSA-2026:47046

Fixed in:0:2.4.63-13.el10_2.4RHSA-2026:34109

httpd-debuginfoRed Hat / RHEL

Fixed in:0:2.4.63-1.el10_0.4RHSA-2026:47046

Fixed in:0:2.4.63-13.el10_2.4RHSA-2026:34109

Fixed in:0:2.4.63-1.el10_0.4RHSA-2026:47046

Fixed in:0:2.4.63-13.el10_2.4RHSA-2026:34109

httpd-debuginfoRocky

Fixed in:0:2.4.63-13.el10_2.4RHSA-2026:34109

Fixed in:0:2.4.63-1.el10_0.4RHSA-2026:47046

Fixed in:0:2.4.63-13.el10_2.4RHSA-2026:34109

Fixed in:0:2.4.63-1.el10_0.4RHSA-2026:47046

Fixed in:0:2.4.63-13.el10_2.4RHSA-2026:34109

Fixed in:0:2.4.63-1.el10_0.4RHSA-2026:47046

httpd-debugsourceRocky

Fixed in:0:2.4.63-1.el10_0.4RHSA-2026:47046

Fixed in:0:2.4.63-13.el10_2.4RHSA-2026:34109

Fixed in:0:2.4.63-1.el10_0.4RHSA-2026:47046

Fixed in:0:2.4.63-13.el10_2.4RHSA-2026:34109

Fixed in:0:2.4.63-1.el10_0.4RHSA-2026:47046

httpd-debugsourceRed Hat / RHEL

Fixed in:0:2.4.63-13.el10_2.4RHSA-2026:34109

Fixed in:0:2.4.63-1.el10_0.4RHSA-2026:47046

Fixed in:0:2.4.63-13.el10_2.4RHSA-2026:34109

Fixed in:0:2.4.63-1.el10_0.4RHSA-2026:47046

Fixed in:0:2.4.63-13.el10_2.4RHSA-2026:34109

Fixed in:0:2.4.63-1.el10_0.4RHSA-2026:47046

httpd-develRed Hat / RHEL

Fixed in:0:2.4.63-13.el10_2.4RHSA-2026:34109

Fixed in:0:2.4.63-1.el10_0.4RHSA-2026:47046

Fixed in:0:2.4.63-13.el10_2.4RHSA-2026:34109

Fixed in:0:2.4.63-1.el10_0.4RHSA-2026:47046

Fixed in:0:2.4.63-13.el10_2.4RHSA-2026:34109

Fixed in:0:2.4.63-1.el10_0.4RHSA-2026:47046

Fixed in:0:2.4.63-13.el10_2.4RHSA-2026:34109

httpd-develRocky

Fixed in:0:2.4.63-1.el10_0.4RHSA-2026:47046

Fixed in:0:2.4.63-13.el10_2.4RHSA-2026:34109

Fixed in:0:2.4.63-1.el10_0.4RHSA-2026:47046

Fixed in:0:2.4.63-13.el10_2.4RHSA-2026:34109

Fixed in:0:2.4.63-1.el10_0.4RHSA-2026:47046

Fixed in:0:2.4.63-13.el10_2.4RHSA-2026:34109

httpd-filesystemRed Hat / RHEL

Fixed in:0:2.4.63-1.el10_0.4RHSA-2026:47046

Fixed in:0:2.4.63-13.el10_2.4RHSA-2026:34109

Fixed in:0:2.4.37-65.module+el8.10.0+24521+219dcfc5.9.noarch::httpd:2.4RHSA-2026:42828

Fixed in:0:2.4.62-13.el9_8.5RHSA-2026:41906

httpd-filesystemRocky

Fixed in:0:2.4.63-1.el10_0.4RHSA-2026:47046

Fixed in:0:2.4.63-13.el10_2.4RHSA-2026:34109

Fixed in:0:2.4.37-65.module+el8.10.0+24521+219dcfc5.9.noarch::httpd:2.4RHSA-2026:42828

Fixed in:0:2.4.62-13.el9_8.5RHSA-2026:41906

httpd-manualRed Hat / RHEL

Fixed in:0:2.4.63-1.el10_0.4RHSA-2026:47046

Fixed in:0:2.4.63-13.el10_2.4RHSA-2026:34109

Fixed in:0:2.4.37-65.module+el8.10.0+24521+219dcfc5.9.noarch::httpd:2.4RHSA-2026:42828

Fixed in:0:2.4.62-13.el9_8.5RHSA-2026:41906

httpd-manualRocky

Fixed in:0:2.4.63-1.el10_0.4RHSA-2026:47046

Fixed in:0:2.4.63-13.el10_2.4RHSA-2026:34109

Fixed in:0:2.4.37-65.module+el8.10.0+24521+219dcfc5.9.noarch::httpd:2.4RHSA-2026:42828

Fixed in:0:2.4.62-13.el9_8.5RHSA-2026:41906

httpd-toolsRed Hat / RHEL

Fixed in:0:2.4.63-1.el10_0.4RHSA-2026:47046

Fixed in:0:2.4.63-13.el10_2.4RHSA-2026:34109

Fixed in:0:2.4.63-1.el10_0.4RHSA-2026:47046

Fixed in:0:2.4.63-13.el10_2.4RHSA-2026:34109

httpd-toolsRocky

Fixed in:0:2.4.63-13.el10_2.4RHSA-2026:34109

Fixed in:0:2.4.63-1.el10_0.4RHSA-2026:47046

httpd-tools-debuginfoRocky

Fixed in:0:2.4.63-13.el10_2.4RHSA-2026:34109

Fixed in:0:2.4.63-1.el10_0.4RHSA-2026:47046

Fixed in:0:2.4.63-13.el10_2.4RHSA-2026:34109

Fixed in:0:2.4.63-1.el10_0.4RHSA-2026:47046

Fixed in:0:2.4.63-13.el10_2.4RHSA-2026:34109

httpd-tools-debuginfoRed Hat / RHEL

Fixed in:0:2.4.63-1.el10_0.4RHSA-2026:47046

Fixed in:0:2.4.63-13.el10_2.4RHSA-2026:34109

Fixed in:0:2.4.63-1.el10_0.4RHSA-2026:47046

Fixed in:0:2.4.63-13.el10_2.4RHSA-2026:34109

Fixed in:0:2.4.63-1.el10_0.4RHSA-2026:47046

mod_http2Rocky

Fixed in:0:1.15.7-10.module+el8.10.0+24521+219dcfc5.7.x86_64::httpd:2.4RHSA-2026:42828

Fixed in:0:1.15.7-10.module+el8.10.0+24521+219dcfc5.7.src::httpd:2.4RHSA-2026:42828

Fixed in:0:1.15.7-10.module+el8.10.0+24521+219dcfc5.7.aarch64::httpd:2.4RHSA-2026:42828

Fixed in:0:1.15.7-10.module+el8.10.0+24521+219dcfc5.7.s390x::httpd:2.4RHSA-2026:42828

Fixed in:0:1.15.7-10.module+el8.10.0+24521+219dcfc5.7.ppc64le::httpd:2.4RHSA-2026:42828

mod_http2Red Hat / RHEL

Fixed in:0:1.15.7-10.module+el8.10.0+24521+219dcfc5.7.s390x::httpd:2.4RHSA-2026:42828

Fixed in:0:1.15.7-10.module+el8.10.0+24521+219dcfc5.7.src::httpd:2.4RHSA-2026:42828

Fixed in:0:1.15.7-10.module+el8.10.0+24521+219dcfc5.7.x86_64::httpd:2.4RHSA-2026:42828

Fixed in:0:1.15.7-10.module+el8.10.0+24521+219dcfc5.7.ppc64le::httpd:2.4RHSA-2026:42828

Fixed in:0:1.15.7-10.module+el8.10.0+24521+219dcfc5.7.aarch64::httpd:2.4RHSA-2026:42828

mod_http2-debuginfoRocky

Fixed in:0:1.15.7-10.module+el8.10.0+24521+219dcfc5.7.aarch64::httpd:2.4RHSA-2026:42828

Fixed in:0:1.15.7-10.module+el8.10.0+24521+219dcfc5.7.s390x::httpd:2.4RHSA-2026:42828

Fixed in:0:1.15.7-10.module+el8.10.0+24521+219dcfc5.7.ppc64le::httpd:2.4RHSA-2026:42828

Fixed in:0:1.15.7-10.module+el8.10.0+24521+219dcfc5.7.x86_64::httpd:2.4RHSA-2026:42828

mod_http2-debuginfoRed Hat / RHEL

Fixed in:0:1.15.7-10.module+el8.10.0+24521+219dcfc5.7.s390x::httpd:2.4RHSA-2026:42828

Fixed in:0:1.15.7-10.module+el8.10.0+24521+219dcfc5.7.x86_64::httpd:2.4RHSA-2026:42828

Fixed in:0:1.15.7-10.module+el8.10.0+24521+219dcfc5.7.aarch64::httpd:2.4RHSA-2026:42828

Fixed in:0:1.15.7-10.module+el8.10.0+24521+219dcfc5.7.ppc64le::httpd:2.4RHSA-2026:42828

mod_http2-debugsourceRocky

Fixed in:0:1.15.7-10.module+el8.10.0+24521+219dcfc5.7.ppc64le::httpd:2.4RHSA-2026:42828

Fixed in:0:1.15.7-10.module+el8.10.0+24521+219dcfc5.7.aarch64::httpd:2.4RHSA-2026:42828

Fixed in:0:1.15.7-10.module+el8.10.0+24521+219dcfc5.7.x86_64::httpd:2.4RHSA-2026:42828

Fixed in:0:1.15.7-10.module+el8.10.0+24521+219dcfc5.7.s390x::httpd:2.4RHSA-2026:42828

mod_http2-debugsourceRed Hat / RHEL

Fixed in:0:1.15.7-10.module+el8.10.0+24521+219dcfc5.7.ppc64le::httpd:2.4RHSA-2026:42828

Fixed in:0:1.15.7-10.module+el8.10.0+24521+219dcfc5.7.s390x::httpd:2.4RHSA-2026:42828

Fixed in:0:1.15.7-10.module+el8.10.0+24521+219dcfc5.7.aarch64::httpd:2.4RHSA-2026:42828

Fixed in:0:1.15.7-10.module+el8.10.0+24521+219dcfc5.7.x86_64::httpd:2.4RHSA-2026:42828

mod_ldapRocky

Fixed in:0:2.4.63-13.el10_2.4RHSA-2026:34109

Fixed in:0:2.4.63-1.el10_0.4RHSA-2026:47046

Fixed in:0:2.4.63-13.el10_2.4RHSA-2026:34109

Fixed in:0:2.4.63-1.el10_0.4RHSA-2026:47046

Fixed in:0:2.4.63-13.el10_2.4RHSA-2026:34109

mod_ldapRed Hat / RHEL

Fixed in:0:2.4.63-13.el10_2.4RHSA-2026:34109

Fixed in:0:2.4.63-1.el10_0.4RHSA-2026:47046

Fixed in:0:2.4.63-13.el10_2.4RHSA-2026:34109

Fixed in:0:2.4.63-1.el10_0.4RHSA-2026:47046

Fixed in:0:2.4.63-13.el10_2.4RHSA-2026:34109

mod_ldap-debuginfoRocky

Fixed in:0:2.4.63-1.el10_0.4RHSA-2026:47046

Fixed in:0:2.4.63-13.el10_2.4RHSA-2026:34109

Fixed in:0:2.4.63-1.el10_0.4RHSA-2026:47046

Fixed in:0:2.4.63-13.el10_2.4RHSA-2026:34109

Fixed in:0:2.4.63-1.el10_0.4RHSA-2026:47046

This vulnerability affects an unusually large number of packages. The highest-confidence fixes are shown above; the full list is longer. Check the referenced advisories for complete coverage.

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityLow

IntegrityLow

AvailabilityLow

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

Exploit Intelligence

0.71%probability of exploitation in 30 days

51stpercentile

Moderate risk: more likely to be exploited than 51% of all known CVEs.

References

Vendor Advisory1

httpd.apache.org

Third-Party Advisory1

openwall.com

Other references9

Related Vulnerabilities

Other CWE-126 (Buffer Over-read) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2023-49285	High	8.6	89%	-	Fix
CVE-2017-7668	High	7.5	57%	-	Fix
CVE-2025-21277	High	7.5	39%	-	Fix
CVE-2024-38071	High	7.5	36%	-	Fix
CVE-2009-2495	Medium	6.5	34%	-	-
CVE-2024-20290	High	7.5	34%	-	Fix

Common questions

How do I fix CVE-2026-44185?

Published advisories record a fix for 73 affected products. The "How to fix" section on this page lists the fixed version and source advisory for each one, so apply the entry matching what you actually run.

Is CVE-2026-44185 being actively exploited?

Not that we know of. CVE-2026-44185 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 0.71% is the estimated probability that it will be exploited in the next 30 days. That is higher than 51% of all scored CVEs.

How severe is CVE-2026-44185?

CVE-2026-44185 has a CVSS v3 base score of 7.3, rated important. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

What does CVE-2026-44185 affect?

Published advisories record a fix for apache2 (Debian), httpd (Red Hat / RHEL), httpd (Rocky), httpd-core (Red Hat / RHEL), and 69 more. Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

Embed a live status badge for CVE-2026-44185

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-08-11.