CVE-2026-33267highCWE-20

CVE-2026-33267: high-severity vulnerability in Apache Traffic Server

Apache Traffic Server: Untrusted @ headers can spoof ATS internal metadata

Published · Updated

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41Vexday Risk Score

No sign of exploitation. It has a public proof of concept.

ssvc Attendcvss 7.7epss 0.6%
from disclosure to weapon14 days
Published on NVDJul 29
1st PoC+14d
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 the issue.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:N/SI:H/SA:N
Affected products
Apache Software Foundation · Apache Traffic Server
⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
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