CVE-2023-38522
Apache Traffic Server: Incomplete field name check allows request smuggling
- State
- Published
- Severity
- 7.5 High
- Published
- Jul 26, 2024
- Updated
- Nov 3, 2025
- Reserved
- Jul 18, 2023
Description
Apache Traffic Server accepts characters that are not allowed for HTTP field names and forwards malformed requests to origin servers. This can be utilized for request smuggling and may also lead cache poisoning if the origin servers are vulnerable.
This issue affects Apache Traffic Server: from 8.0.0 through 8.1.10, from 9.0.0 through 9.2.4.
Users are recommended to upgrade to version 8.1.11 or 9.2.5, which fixes 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 Smuggling')
Affected Products
| Product | Versions |
|---|---|
Apache Traffic ServerApache Software Foundation |
|
References
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