VULNERABILITY INTELLIGENCE

CVE-2023-38522

CVSS score7.5 HIGH
EPSS probability0.99%
CISA KEVNot currently listed
Published2024-07-26
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

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.

Weakness classification

  • security@apache.org: CWE-444
  • nvd@nist.gov: CWE-444

Primary references