CVE-2026-33930

Apache Traffic Server copies the client Host header into a fixed-size stack buffer without a bound during redirect handling, so an over-long Host header overflows the stack when redirect following is enabled. This issue affects Apache Traffic Server: from 8.0.0 through 8.1.11, from 9.0.0 through 9.2.14, from 10.0.0 through 10.1.3. Users are recommended to upgrade to version 9.2.15 or 10.1.4, which fix the issue.

Score
CVSS 4.0 8.2 High
Status
Modified - security@apache.org
Published
2026-07-29
Last modified
2026-10-01
Weaknesses
CWE-121

Affected products

References

 
 
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