CVE-2026-58179

Analyzed Analyzed - Analysis Complete

Stack Overflow in Apache Traffic Server regex_remap Plugin

Publication date: 2026-07-29

Last updated on: 2026-07-31

Assigner: Apache Software Foundation

Description

The Apache Traffic Server regex_remap plugin overflows the stack and integers from substitution input. 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

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Meta Information

Published

2026-07-29

Last Modified

2026-07-31

Generated

2026-08-19

AI Q&A

2026-07-30

EPSS Evaluated

2026-08-18

NVD

CVE-2026-58179

Affected Vendors & Products

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

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-121	A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function).

Attack-Flow Graph

Executive Summary

This vulnerability involves a stack and integer overflow in the Apache Traffic Server's regex_remap plugin. It occurs when processing substitution input, potentially allowing attackers to execute arbitrary code or cause denial of service by overwriting memory or corrupting data.

Detection Guidance

This vulnerability is specific to Apache Traffic Server versions 8.0.0 through 10.1.3. Detection involves checking the installed version of Apache Traffic Server. Use commands like 'traffic_server -v' or 'apachectl -v' to verify the version. If the version falls within the affected range, the system is vulnerable.

Impact Analysis

If exploited, this flaw could lead to system crashes, unauthorized code execution, or data corruption. Attackers might gain control over affected systems, steal sensitive information, or disrupt services relying on Apache Traffic Server.

Compliance Impact

This vulnerability could potentially lead to unauthorized access or data breaches due to stack and integer overflows in the regex_remap plugin. Such breaches may violate GDPR's data protection requirements or HIPAA's safeguards for protected health information, depending on the data processed by Apache Traffic Server.

Mitigation Strategies

Upgrade Apache Traffic Server to version 9.2.15 or 10.1.4 or later to fix the issue.

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