Is CVE-2026-64623 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-64623?

CVE-2026-64623 has a CVSS v3 severity of HIGH (8.6).

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CVE-2026-64623

Description

Network-AI before 5.13.4 contains an improper cryptographic signature verification vulnerability in APSAdapter where the default local verifier accepts any non-empty string as valid. Unauthenticated attackers can submit forged APS delegation payloads with arbitrary scopes to bypass signature verification and obtain signed permission-grant tokens for sensitive resources including SHELL_EXEC.