CVE-2026-64623

HIGH 8.6

Network-AI before 5.13.4 Cryptographic Signature Verification Bypass

CVSS Score

8.6

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-347
Vendor	jovancoding
Product	network-ai
Published	Jul 20, 2026
Last Updated	Jul 20, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:L

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

High

Availability

Low

Affected Versions

Jovancoding / Network-AI

0 < 5.13.4

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/Jovancoding/Network-AI/security/advisories/GHSA-3jf7-33vc-hgf4 vulncheck.com: https://www.vulncheck.com/advisories/network-ai-before-cryptographic-signature-verification-bypass

Credits

🔍 EQSTLab useworld