CVE-2026-58188
Apache Software Foundation · Apache Traffic Server
Multiple experimental plugins in Apache Traffic Server contain memory-safety and limit-bypass errors that can be triggered by unauthenticated users.
Executive summary
Memory-safety and limit-bypass flaws in experimental Apache Traffic Server plugins present a high-severity risk of unauthorized access and system instability.
Vulnerability
The software suffers from out-of-bounds write vulnerabilities (CWE-787) within various experimental plugins. These flaws are accessible to unauthenticated attackers and can lead to memory corruption or the bypassing of configured limits.
Business impact
These vulnerabilities allow for both service disruption and potential security bypasses, which could be leveraged to gain unauthorized access to system resources. With a CVSS score of 8.2, this vulnerability is a high-priority risk that threatens the integrity and availability of the Traffic Server environment.
Remediation
Immediate Action: Update to the latest version of Apache Traffic Server to ensure all experimental plugins are patched.
Proactive Monitoring: Review plugin configurations and monitor for unexpected behaviors or errors in the logs related to experimental functionality.
Compensating Controls: Disable all unused or experimental plugins to reduce the attack surface and mitigate the risk of exploitation.
Exploitation status
Public Exploit Available: No
Analyst recommendation
Organizations should urgently apply vendor-supplied updates. Furthermore, it is recommended to review the necessity of experimental plugins and disable any that are not essential to maintain a hardened production environment.