What is CVE-2026-24033?

CVE-2026-24033 is a high-severity vulnerability in Apache Traffic Server, classified under Inconsistent Interpretation of HTTP Requests (HTTP Request/Response Smuggling). CVSS score: 7.2/10. Published 2026-07-29.

How severe is CVE-2026-24033?

High severity. CVSS v3 base score is 7.2 out of 10.

Vulnerability in Apache Traffic Server

CVE-2026-24033

Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling') vulnerability in Apache Traffic Server. This issue affects Apache Traffic Server: from 10.0.0 through 10.1.3, from 9.0.0 through 9.2.14. Users are recommended to upgrade to version 9.2.15 or 10.1.4, which fixes the issue.

Vulnerability class: HTTP Request Smuggling

EPSS: 0.003 (25.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N.

Affected products

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

Weakness classification (CWE)

CWE-444 — Inconsistent Interpretation of HTTP Requests (HTTP Request/Response Smuggling)

References

security@apache.org (vendor-advisory, Mailing List, Vendor Advisory)

Frequently asked questions

What is CVE-2026-24033?: CVE-2026-24033 is a high-severity vulnerability in Apache Traffic Server, classified under Inconsistent Interpretation of HTTP Requests (HTTP Request/Response Smuggling). CVSS score: 7.2/10. Published 2026-07-29.
How severe is CVE-2026-24033?: High severity. CVSS v3 base score is 7.2 out of 10.