VulnerabilityModified
CVE-2026-23918
Double Free and possible RCE vulnerability in Apache HTTP Server with the HTTP/2 protocol.
HIGH 8.8EPSS 49.7%
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 49.7%, higher than 99% of all known CVEs. Patch or mitigate before the next change window.
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.
- CVSS 3.1
- 8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 49.73% probability · 99th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-415, CWE-1341
- Affected
- apache/http server
- Source
- security@apache.org
References
- https://httpd.apache.org/security/vulnerabilities_24.htmlVendor Advisory
- http://www.openwall.com/lists/oss-security/2026/05/04/19Mailing List, Third Party Advisory
- https://access.redhat.com/errata/RHSA-2026:13938
- https://access.redhat.com/security/cve/CVE-2026-23918
- https://bugzilla.redhat.com/show_bug.cgi?id=2465304
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-23918.json
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.