CVE-2023-38522

HIGH EPSS 58.0%
Published Jul 26, 20241y ago · Modified Jun 17, 20262w ago
7.5 CVSS 3.1
High
Find Similar
Published Jul 26, 2024 1y ago
Last Modified Jun 17, 2026 2w ago

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.

CVSS Details

Base Score
7.5
Exploitability
3.9
Impact
3.6
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality None
Integrity High
Availability None

Threat Intelligence

EPSS Exploit Probability
58.0% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-444

Affected Products 2

VendorProductVersionRange
apachetraffic_server*≥8.0.0  –  <8.1.11
apachetraffic_server*≥9.0.0  –  <9.2.5

References 2

  • lists.apache.org https://lists.apache.org/thread/c4mcmpblgl8kkmyt56t23543gp8v56m0
    Mailing ListVendor Advisory
  • lists.debian.org https://lists.debian.org/debian-lts-announce/2024/09/msg00040.html

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.