Memory Safety and Limit-Bypass Flaws in Apache Traffic Server

Publication date: 2026-07-29

Last updated on: 2026-07-29

Assigner: Apache Software Foundation

Description

Several Apache Traffic Server experimental plugins have memory-safety and limit-bypass errors. 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 Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published

2026-07-29

Last Modified

2026-07-29

Generated

2026-07-30

AI Q&A

2026-07-30

EPSS Evaluated

N/A

NVD

CVE-2026-58188

Affected Vendors & Products

Vendor	Product	Version / Range
apache	traffic_server	From 8.0.0 (inc) to 8.1.9 (inc)
apache	traffic_server	From 9.0.0 (inc) to 9.2.14 (inc)
apache	traffic_server	From 10.0.0 (inc) to 10.1.3 (inc)
apache	traffic_server	9.2.15
apache	traffic_server	10.1.4

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-787	The product writes data past the end, or before the beginning, of the intended buffer.

Attack-Flow Graph

Executive Summary

This vulnerability involves memory-safety and limit-bypass errors in several experimental plugins of Apache Traffic Server. It affects versions from 8.0.0 through 8.1.9, 9.0.0 through 9.2.14, and 10.0.0 through 10.1.3.

Impact Analysis

The vulnerability could allow attackers to bypass limits or cause memory corruption, potentially leading to crashes or unauthorized actions. The CVSS score indicates high impact on availability and integrity.

Mitigation Strategies

Upgrade Apache Traffic Server to version 9.2.15 or 10.1.4, which address the memory-safety and limit-bypass errors in experimental plugins.

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