CVE-2026-57834

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

CVSS v3 10.0 CRITICAL

10.0^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 6.0

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact LOW

Scope CHANGED

References

Link	Resource
https://lists.apache.org/thread/5prl9glcm9g2swnq9hqxvnokylm1gr6d	Mailing List Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:apache:traffic_server::::::::
	cpe:2.3:a:apache:traffic_server::::::::
	cpe:2.3:a:apache:traffic_server::::::::

History

01 Oct 2026, 17:17

Type	Values Removed	Values Added
References	~~() https://lists.apache.org/thread/5prl9glcm9g2swnq9hqxvnokylm1gr6d - Vendor Advisory, Mailing List~~	() https://lists.apache.org/thread/5prl9glcm9g2swnq9hqxvnokylm1gr6d - Mailing List, Vendor Advisory
Summary	(en) Apache Traffic Server allows request smuggling if chunked messages are malformed. 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.	(en) Apache Traffic Server allows request smuggling if chunked messages are malformed. 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.

Information

Published : 2026-07-29 08:16

Updated : 2026-10-01 17:17

NVD link : CVE-2026-57834

Mitre link : CVE-2026-57834

CVE.ORG link : CVE-2026-57834

JSON object : View

Products Affected

apache

traffic_server

CWE

CWE-444

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

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