What is CVE-2026-33267?

CVE-2026-33267 is a critical-severity vulnerability in Apache Software Foundation Traffic Server, classified under Improper Input Validation. CVSS score: 10.0/10. Published 2026-07-29.

How severe is CVE-2026-33267?

Critical severity. CVSS v3 base score is 10.0 out of 10.

Improper input validation in Apache Software Foundation Traffic Server

CVE-2026-33267

Improper Input Validation vulnerability in Apache Traffic Server. This issue affects Apache Traffic Server: from 9.2.0 through 9.2.14, from 10.1.0 through 10.1.3. Users are recommended to upgrade to version 9.2.15 or 10.1.4, which fixes…

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

CVSS v3 metric

CVSS v3 base score 10.0 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N.

Affected products

Apache Software Foundation Traffic Server — versions 9.2.0, 10.1.0

Weakness classification (CWE)

CWE-20 — Improper Input Validation

References

security@apache.org (vendor-advisory)

Frequently asked questions

What is CVE-2026-33267?: CVE-2026-33267 is a critical-severity vulnerability in Apache Software Foundation Traffic Server, classified under Improper Input Validation. CVSS score: 10.0/10. Published 2026-07-29.
How severe is CVE-2026-33267?: Critical severity. CVSS v3 base score is 10.0 out of 10.