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HPE Telco Service Activator Vulnerability Allows Attackers to Bypass Access Controls

Gbhackers •Mayura Kathir • February 23, 2026

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HPE Telco Service Activator Vulnerability Allows Access Control Bypass A vulnerability in HPE Telco Service Activator, reported on February 19, 2026, allows attackers to bypass access restrictions. The flaw is linked to improper input validation in the Undertow HTTP server core used by the product, specifically failing to validate the Host header. 4 sources 32

Extracted Entities

HPE Telco Service Activator Vulnerability Allows Attackers to Bypass Access Controls

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Extracted Entities

Attack Types (1)

Platforms (1)

Vulnerabilities (1)