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CVE-2026-24033: CWE-444 Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling') in Apache Software Foundation Apache Traffic Server

0
High
Published: 07/29/2026 (07/29/2026, 08:16:00 UTC)
Source: CVE Database V5
Vendor/Project: Apache Software Foundation
Product: Apache Traffic Server

Description

CVE-2026-24033 is a high-severity vulnerability in Apache Traffic Server involving inconsistent interpretation of HTTP requests, also known as HTTP Request/Response Smuggling. This affects versions from 9.0.0 through 9.2.14 and 10.0.0 through 10.1.3. The vulnerability can lead to partial confidentiality and integrity impacts but does not affect availability. Users are advised to upgrade to versions 9.2.15 or 10.1.4 where the issue is fixed.

CVSS v3.1

Score 7.2high

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N

Affected software

Apache Software Foundation

Apache Traffic Server

Affected versions
>=10.0.0 <=10.1.3>=9.0.0 <=9.2.14

AI-Powered Analysis

Machine-generated threat intelligence

AILast updated: 08/05/2026, 15:17:17 UTC

Technical Analysis

Apache Traffic Server versions 9.0.0 through 9.2.14 and 10.0.0 through 10.1.3 contain a CWE-444 vulnerability related to inconsistent interpretation of HTTP requests, commonly referred to as HTTP Request/Response Smuggling. This flaw allows an attacker to manipulate how HTTP requests and responses are parsed, potentially leading to confidentiality and integrity issues. The CVSS 3.1 base score is 7.2, indicating high severity with network attack vector, low attack complexity, no privileges or user interaction required, and scope changed. The vendor has fixed the issue in versions 9.2.15 and 10.1.4.

Potential Impact

The vulnerability can lead to partial loss of confidentiality and integrity of HTTP communications handled by Apache Traffic Server. There is no impact on availability. The flaw could allow attackers to smuggle HTTP requests or responses, potentially bypassing security controls or causing misrouting of traffic.

Mitigation Recommendations

Users should upgrade affected Apache Traffic Server instances to versions 9.2.15 or 10.1.4, which contain the official fixes for this vulnerability. No other mitigation or temporary workaround is indicated. Patch status is confirmed by the vendor's version recommendations.

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Technical Details

Data Version
5.2
Assigner Short Name
apache
Date Reserved
2026-01-20T18:39:10.877Z
Cvss Version
3.1
State
PUBLISHED

Threat ID: 6a69adc79c2644c7f825aa79

Added to database: 07/29/2026, 07:37:43 UTC

Last enriched: 08/05/2026, 15:17:17 UTC

Last updated: 09/10/2026, 20:00:31 UTC

Views: 57

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