What is CVE-2026-48913?

CVE-2026-48913 is a high-severity vulnerability in Apache Http_server, classified under Use After Free. CVSS score: 7.3/10. Published 2026-06-08.

How severe is CVE-2026-48913?

High severity. CVSS v3 base score is 7.3 out of 10.

Use After Free in Apache Http_server

CVE-2026-48913

Use After Free vulnerability in Apache HTTP Server module mod_http2 when file handles are already exhausted. This issue affects Apache HTTP Server: from 2.4.55 through 2.4.67.

Vulnerability class: Use-After-Free

EPSS: 0.005 (38.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.3 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L.

Affected products

Apache Http_server
Apache Software Foundation Http Server — versions 2.4.55

Weakness classification (CWE)

CWE-416 — Use After Free

References

security@apache.org (vendor-advisory, Vendor Advisory)
af854a3a-2127-422b-91ae-364da2661108 (Mailing List, Third Party Advisory)

Frequently asked questions

What is CVE-2026-48913?: CVE-2026-48913 is a high-severity vulnerability in Apache Http_server, classified under Use After Free. CVSS score: 7.3/10. Published 2026-06-08.
How severe is CVE-2026-48913?: High severity. CVSS v3 base score is 7.3 out of 10.