CVE-2026-23918 EXPLOIT
8.8
HIGH · CVSS 3.1 · EPSS 49.7% (pctl 99)
Patch early
A public exploit exists.
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.
Scoring
| CVSS | 8.8 (HIGH, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| EPSS | 49.73% — more likely to be exploited than 99% of all CVEs |
| Weakness | CWE-415 |
| On CISA KEV | no |
| Public exploit | yes |
| Published | 2026-05-04 |
| Last modified | 2026-07-15 |
Affected (1)
| Vendor | Product |
|---|---|
| apache | http server |
Public exploits
| Source | Title | Date |
|---|---|---|
| exploit-db | Apache HTTP Server 2.4.66 - 'mod_http2' Double-Free Denial of Service | 2026-05-26 |
References
- https://httpd.apache.org/security/vulnerabilities_24.html
- http://www.openwall.com/lists/oss-security/2026/05/04/19
- 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
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