// For flags

CVE-2024-38311

Apache Traffic Server: Request smuggling via pipelining after a chunked message body

Severity Score

6.3
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Track
*SSVC
Descriptions

Improper Input Validation vulnerability in Apache Traffic Server. This issue affects Apache Traffic Server: from 8.0.0 through 8.1.11, from 9.0.0 through 9.2.8, from 10.0.0 through 10.0.3. Users are recommended to upgrade to version 9.2.9 or 10.0.4, which fixes the issue.

Several vulnerabilities were discovered in Apache Traffic Server, a reverse and forward proxy server, which could result in denial of service, HTTP request smuggling, cache poisoning or incomplete dropping of privileges.

*Credits: Ben Kallus
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
Low
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
None
Integrity
Partial
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:Track
Exploitation
None
Automatable
No
Tech. Impact
Partial
* Organization's Worst-case Scenario
Timeline
  • 2024-06-13 CVE Reserved
  • 2025-03-06 CVE Published
  • 2025-03-06 CVE Updated
  • 2025-08-03 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-20: Improper Input Validation
CAPEC
References (1)
URL Tag Source
URL Date SRC
URL Date SRC
URL Date SRC
https://lists.apache.org/thread/btofzws2yqskk2n7f01r3l1819x01023 2025-03-06
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Apache Software Foundation
Search vendor "Apache Software Foundation"
 Apache Traffic Server
Search vendor "Apache Software Foundation" for product "Apache Traffic Server"
 >= 8.0.0 <= 8.1.11
Search vendor "Apache Software Foundation" for product "Apache Traffic Server" and version " >= 8.0.0 <= 8.1.11"
en
Affected
Apache Software Foundation
Search vendor "Apache Software Foundation"
 Apache Traffic Server
Search vendor "Apache Software Foundation" for product "Apache Traffic Server"
 >= 9.0.0 <= 9.2.8
Search vendor "Apache Software Foundation" for product "Apache Traffic Server" and version " >= 9.0.0 <= 9.2.8"
en
Affected
Apache Software Foundation
Search vendor "Apache Software Foundation"
 Apache Traffic Server
Search vendor "Apache Software Foundation" for product "Apache Traffic Server"
 >= 10.0.0 <= 10.0.3
Search vendor "Apache Software Foundation" for product "Apache Traffic Server" and version " >= 10.0.0 <= 10.0.3"
en
Affected