CVE-2026-23918
High · CVSS 8.8Apache HTTP Server — Double Free RCE via HTTP/2 protocol
- CVSS
- 8.8
- nvd
- EPSS
- —
- KEV
- No
- Class
- other
- CWE-415, CWE-1341
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.
Search profile — drives PoC discovery
Symbols mod_http2h2_sessionh2_streamnghttp2double_freeHTTP/2ap_http2h2_connh2_task
Keywords CVE-2026-23918Apache HTTP ServerhttpdHTTP/2double freeRCECWE-415CWE-13412.4.662.4.67mod_http2Apache httpd PoCApache HTTP/2 double free exploit
Versions: 2.4.66
Ranked PoCs (15) — best first
Heuristic ranking — not yet expert-vetted. Scored on structure + provenance, not execution.
- ★ 29
- ★ 7
- ★ 0
- ★ 0recent activitygh_search · Go
- ★ 20
- ★ 6
- ★ 4
- ★ 1
- ★ 0
- ★ 0recent activitygh_search · Python
- ★ 0
- ★ 0
- ★ 0
- ★ 0
- ★ 0
Recall-favoring discovery; ranking by the Stage-4 scorer (Adam's rubric). Scanner/aggregator repos are hidden.
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
Status: enriched · ingested 2026-06-30T06:00:22.000Z · profiled 2026-06-30T18:30:14.000Z