CVE-2026-58187

The Apache Traffic Server multiplexer plugin overruns its chunk-decode buffer on upstream input, enabling denial of service. This issue affects Apache Traffic Server: from 8.0.0 through 8.1.9, from 9.0.0 through 9.2.14, from 10.0.0 through 10.1.3. Users are recommended to upgrade to version 9.2.15 or 10.1.4, which fix the issue.

CVSS v3 3.7 LOW

3.7^/10

CVSS v3 : LOW

Vector :

Exploitability : 2.2 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact LOW

Scope UNCHANGED

References

Link	Resource
https://lists.apache.org/thread/5prl9glcm9g2swnq9hqxvnokylm1gr6d	Mailing List Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:apache:traffic_server::::::::
	cpe:2.3:a:apache:traffic_server::::::::
	cpe:2.3:a:apache:traffic_server::::::::

History

31 Jul 2026, 20:51

Type	Values Removed	Values Added
First Time		Apache traffic Server Apache
References	~~() https://lists.apache.org/thread/5prl9glcm9g2swnq9hqxvnokylm1gr6d -~~	() https://lists.apache.org/thread/5prl9glcm9g2swnq9hqxvnokylm1gr6d - Mailing List, Vendor Advisory
CPE		cpe:2.3:a:apache:traffic_server::::::::

29 Jul 2026, 10:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-07-29 10:16

Updated : 2026-07-31 20:51

NVD link : CVE-2026-58187

Mitre link : CVE-2026-58187

CVE.ORG link : CVE-2026-58187

JSON object : View

Products Affected

apache

traffic_server

CWE

CWE-787

Out-of-bounds Write

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