CVE-2026-18972
Critical · 9.6CVSS
9.6
EPSS
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Published
Aug 11, 2026
CISA due date
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The record
An authenticated attacker can spoof another GUI user's identity by sending their request with the custom header \"Grpc-Metadata-USER\". This can lead to an account takeover attack from a user with low privileges to administrator.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
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