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5.9 Medium

CVE-2026-33930 Apache Traffic Server copies the client Host header into a fixed-size stack buffer without a bound during redirect…

Description

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.

Affected products and versions

Product Affected versions Fixed in
Apache Traffic Server 10.0 10.0.0 → 10.1.3 No fix stated
Apache Traffic Server 9.0 9.0.0 → 9.2.14 No fix stated
Apache Traffic Server 8.0 8.0.0 → 8.1.11 No fix stated

References

Timeline

  1. Published
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