CVE-2026-49975
Apache HTTP Server: mod_http2 denial of service
7.5
HIGH
CVSS 3.1
Description
Memory Allocation with Excessive Size Value vulnerability in Apache HTTP Server's mod_http leads to denial of service via malicious HTTP requests. This issue affects Apache HTTP Server: from 2.4.17 through 2.4.67.
How to fix CVE-2026-49975
To remediate CVE-2026-49975, upgrade the affected package to a fixed version below.
- Alpine/nginx—upgrade to 1.28.3-r3 or later
- Bitnami/apache—upgrade to 2.4.68 or later
- —upgrade to 2.4.67-1~deb11u2 or later
Is CVE-2026-49975 being exploited?
No exploitation signal available. Neither CISA KEV nor a current EPSS score has been published for CVE-2026-49975.
Affected packages (3)
- from 0, < 1.28.3-r3
- >= 2.4.17, < 2.4.68
- from 0, < 2.4.67-1~deb11u2
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |