CVE-2026-33930 — Apache Traffic Server: Buffer overflow via Host field that has a long string value
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…
Published: 2026-07-29 · CVSS: 8.2 · CVSS 4.0
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7