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Status published
High
CVE-2021-37148
Request Smuggling - transfer encoding validation
Vulnerability Description
Improper input validation vulnerability in header parsing of Apache Traffic Server allows an attacker to smuggle requests. This issue affects Apache Traffic Server 8.0.0 to 8.1.2 and 9.0.0 to 9.0.1.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:
- Apache Traffic Server would like to thank Mattias Grenfeldt and Asta Olofsson for reporting this issue
References
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Affected Vendor
Apache Software Foundation
View all reports →Affected Software
Apache Traffic Server
Vulnerable Versions:
8.0.0 to 8.1.2 and 9.0.0 to 9.0.1
Timeline
Official Publish:
November 3rd, 2021
Last Modified:
August 4th, 2024
Added to House:
July 21st, 2026
CVSS Vectors
V3:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N