CVE-2026-58157
Received Received - Intake

Improper Session Reuse in Apache Traffic Server

Publication date: 2026-07-29

Last updated on: 2026-07-30

Assigner: Apache Software Foundation

Description
Apache Traffic Server can reuse server sessions and tunnels improperly, exposing data across client connections. 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.

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Meta Information

Published
2026-07-29
Last Modified
2026-07-30
Generated
2026-07-30
AI Q&A
2026-07-30
EPSS Evaluated
N/A
NVD
CVE-2026-58157

Affected Vendors & Products

Showing 5 associated CPEs
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

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Exploitability

CWE
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KEV
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CWE ID Description
CWE-200 The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.

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Executive Summary

Apache Traffic Server improperly reuses server sessions and tunnels, allowing data to be exposed across different client connections. This means sensitive information intended for one user could be accessible to another user.

Impact Analysis

If you use Apache Traffic Server versions 8.0.0 through 10.1.3, your data could be leaked between users. Attackers might intercept or access sensitive information meant for others, leading to privacy breaches or data theft.

Compliance Impact

This vulnerability could lead to unauthorized data exposure, violating GDPR's data protection requirements and HIPAA's safeguards for protected health information. Non-compliance may result in legal penalties and reputational damage.

Mitigation Strategies

Upgrade Apache Traffic Server to version 9.2.15 or 10.1.4, which contain fixes for this issue. The affected versions are 8.0.0 through 8.1.9, 9.0.0 through 9.2.14, and 10.0.0 through 10.1.3.

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