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.
History

Fri, 19 Sep 2025 18:15:00 +0000

Type Values Removed Values Added
CPEs cpe:2.3:a:apache:traffic_server:8.0.0:*:*:*:*:*:*:*
cpe:2.3:a:apache:traffic_server:9.0.0:*:*:*:*:*:*:*
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Wed, 28 May 2025 17:00:00 +0000

Type Values Removed Values Added
References

Thu, 22 May 2025 02:30:00 +0000


Mon, 09 Sep 2024 19:00:00 +0000

Type Values Removed Values Added
Weaknesses CWE-20

Tue, 03 Sep 2024 17:00:00 +0000

Type Values Removed Values Added
Weaknesses CWE-20
References
Metrics threat_severity

None

threat_severity

Moderate


Tue, 13 Aug 2024 09:45:00 +0000

Type Values Removed Values Added
Weaknesses CWE-20

Mon, 12 Aug 2024 14:00:00 +0000

Type Values Removed Values Added
First Time appeared Apache
Apache traffic Server
Weaknesses CWE-444
CPEs cpe:2.3:a:apache:traffic_server:*:*:*:*:*:*:*:*
Vendors & Products Apache
Apache traffic Server

cve-icon MITRE

Status: PUBLISHED

Assigner: apache

Published: 2024-07-26T09:11:20.419Z

Updated: 2025-09-19T18:11:15.344Z

Reserved: 2023-07-18T19:58:23.902Z

Link: CVE-2023-38522

cve-icon Vulnrichment

Updated: 2024-08-02T17:46:55.187Z

cve-icon NVD

Status : Modified

Published: 2024-07-26T10:15:01.923

Modified: 2025-09-19T18:15:35.140

Link: CVE-2023-38522

cve-icon Redhat

Severity : Moderate

Publid Date: 2024-07-25T00:00:00Z

Links: CVE-2023-38522 - Bugzilla