CVE WatchJul 30, 2026

CVE-2026-54363

CentreStack before 17.5 contains a hardcoded cryptographic key vulnerability that allows unauthenticated attackers to forge arbitrary encryp

CVSS

9.1

Critical

EPSS

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KEV

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Exploit Today

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0-100

Published: Jul 30, 2026 · Last modified: Jul 30, 2026 · CWE-321

EPSS · 30d

Not enough EPSS history yet.

Technical description

CentreStack before 17.5 contains a hardcoded cryptographic key vulnerability that allows unauthenticated attackers to forge arbitrary encrypted tokens by exploiting a static SysNumber value used as entropy for AccessTicket.Encrypt() and AccessTicket.Decrypt() across all installations. Attackers can use the hardcoded key to craft valid x-glad-auth headers and call privileged API endpoints such as acquiretenantbackuptoken to obtain a domain administrator IdentityTicket, enabling a complete unauthenticated remote code execution chain.

Official references

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