CVE-2025-65114

Apache Traffic Server: Malformed chunked message body allows request smuggling

State: Published
Severity: 7.5 High
Published: Apr 2, 2026
Updated: Apr 2, 2026
Reserved: Nov 18, 2025

Description

Apache Traffic Server allows request smuggling if chunked messages are malformed.

This issue affects Apache Traffic Server: from 9.0.0 through 9.2.12, from 10.0.0 through 10.1.1.

Users are recommended to upgrade to version 9.2.13 or 10.1.2, which fix the issue.

Scores

CVSS	Score	Vector	Source
3.1	7.5 High	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N	CISA-ADP

Weaknesses

CWE-444 Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')

Affected Products

Product	Versions
Apache Traffic ServerApache Software Foundation	9.0.0 through 9.2.12Affected 10.0.0 through 10.1.1Affected

References

https://lists.apache.org/thread/2s11roxlv1j8ph6q52rqo1klvl01n14qvendor-advisory

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