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Apache Traffic Server Vulnerabilities Let Attackers Trigger DoS Attack

Cybersecuritynews •Abinaya • April 6, 2026

The Apache Software Foundation has released emergency security updates to address two severe vulnerabilities in the Apache Traffic Server (ATS). ATS operates as a high-performance web proxy cache that improves network efficiency and handles massive volumes of enterprise web traffic. These newly discovered flaws stem from how the server processes HTTP requests with message bodies. […]

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This article is one source in a clustered incident — the cluster page carries the summary, timeline and every other outlet covering it.

Apache Traffic Server Vulnerabilities Enable Denial-of-Service Attacks The Apache Software Foundation has issued critical security updates for two vulnerabilities in Apache Traffic Server (ATS), disclosed on April 2, 2026. These flaws allow remote attackers to trigger denial-of-service (DoS) conditions or execute HTTP request smuggling attacks. The vulnerabilities arise from the server's handling of HTTP requests that contain body data. Organizations using ATS for web proxy caching and traffic management are particularly at risk. The updates aim to mitigate potential exploitation of these vulnerabilities. No specific CVEs were mentioned in the articles. The current status is that patches have been released to address these issues. Security teams are advised to implement these updates promptly to safeguard their systems. 2 sources 74

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Apache Traffic Server Vulnerabilities Let Attackers Trigger DoS Attack

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Attack Types (1)

MITRE ATT&CK (1)

Platforms (1)