Apache TS Improper Session/Tunnel Reuse Exposes Data (8.0.010.1.3)
CVE-2026-58157 Published on July 29, 2026
Apache Traffic Server: Improper server-session reuse can expose data across client connections
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.
Vulnerability Analysis
CVE-2026-58157 can be exploited with network access, and does not require authorization privileges or user interaction. This vulnerability is consided to have a high level of attack complexity. The potential impact of an exploit of this vulnerability is considered to have a high impact on confidentiality and integrity, and no impact on availability.
Weakness Type
What is an Information Disclosure Vulnerability?
The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.
CVE-2026-58157 has been classified to as an Information Disclosure vulnerability or weakness.
Products Associated with CVE-2026-58157
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Affected Versions
Apache Software Foundation Apache Traffic Server:- Version 8.0.0, <= 8.1.9 is affected.
- Version 9.0.0, <= 9.2.14 is affected.
- Version 10.0.0, <= 10.1.3 is affected.