Is CVE-2026-65100 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-65100?

CVE-2026-65100 has a CVSS v3 severity of MEDIUM (4.8).

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CVE-2026-65100

Description

Apache Traffic Server updates the HTTP/2 HPACK dynamic table before confirming the header block encoded successfully, so an encode failure leaves the encoder out of sync with the peer decoder and corrupts subsequent header blocks on the connection. This issue affects Apache Traffic Server: from 8.0.0 through 8.1.9, 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.