CVE-2026-23918 | BDVDB-2026-330299 Detail

ApacheApache HTTP Server

Description#

Double Free and possible RCE vulnerability in Apache HTTP Server with the HTTP/2 protocol. This issue affects Apache HTTP Server: 2.4.66. Users are recommended to upgrade to version 2.4.67, which fixes the issue.

Impact#

Per CVSS v3.1: confidentiality impact high, integrity impact high, availability impact high. Attack vector: network.

Weaknesses#

CWE-415 Double Free
CWE-1341 Multiple Releases of Same Resource or Handle

References#

Exploit#

No public exploit known

History#

Version 12026-05-04Record published in the CVE List.
Version 22026-07-15Most recent update recorded in the CVE List.

Published

Published: 2026-05-04
Last modified: 2026-07-15

Vendor information

Vendor: Apache
Product: Apache HTTP Server

All Apache vulnerabilities

Score

8.8 High

EPSS

49.7%, Moderate

Estimated chance of exploitation in the next 30 days. EPSS percentile: 98.9.

KEV

Not listed in the CISA Known Exploited Vulnerabilities catalog.

Impact

Memory Corruption

Action

No specific action is recorded in the source data. Check the references for vendor guidance.

Affected Systems

Vulnerable
2.4.66
Fixed
Not stated

Scoring System

CVSS v4.0

Not available

CVSS v3.1

8.8 High

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

Metric breakdown
Attack Vector	Network
Attack Complexity	Low
Privileges Required	Low
User Interaction	None
Scope	Unchanged
Confidentiality	High
Integrity	High
Availability	High

CVSS v3.0

Not available

CVSS v2

Not available

Source: CVE List v5 (record); CISA KEV (kev, action); FIRST EPSS (epss).