What is CVE-2026-65324?

CVE-2026-65324 is a high-severity vulnerability in Apache Software Foundation Traffic Server, classified under Uncontrolled Resource Consumption. CVSS score: 7.5/10. Published 2026-07-29.

How severe is CVE-2026-65324?

High severity. CVSS v3 base score is 7.5 out of 10.

Resource exhaustion in Apache Software Foundation Traffic Server

CVE-2026-65324

Apache Traffic Server drops the per-stream buffer cap when dechunking HTTP/2 or HTTP/3 responses, letting a slow client exhaust server memory. This issue affects Apache Traffic Server: from 8.0.0 through 8.1.9, from 9.0.0 through 9.2.14…

Vulnerability class: DoS (Denial of Service)

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Apache Software Foundation Traffic Server — versions 8.0.0, 9.0.0, 10.0.0

Weakness classification (CWE)

CWE-400 — Uncontrolled Resource Consumption

References

security@apache.org (vendor-advisory)

Frequently asked questions

What is CVE-2026-65324?: CVE-2026-65324 is a high-severity vulnerability in Apache Software Foundation Traffic Server, classified under Uncontrolled Resource Consumption. CVSS score: 7.5/10. Published 2026-07-29.
How severe is CVE-2026-65324?: High severity. CVSS v3 base score is 7.5 out of 10.