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Home/CWEs/CWE-347
Common Weakness Enumeration

CWE-347: Improper Verification of Cryptographic Signature

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The product does not verify, or incorrectly verifies, the cryptographic signature for data.

Abstraction
Base
Related CVEs
32

▪ References & documentation

MITRE CWE definitionNVD CWE listing

▪ How attackers exploit CWE-347

MITRE ATT&CK techniques associated with this weakness class (mapped via MITRE CAPEC). A vulnerability of this type could let an adversary carry out:

T1036MasqueradingstealthT1553Subvert Trust Controlsdefense-impairment

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CVE-2026-102271High

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CVE-2026-48523Medium

Security vulnerability in pyjwt

CVE-2026-48523Medium

Security vulnerability in pyjwt

CVE-2026-48523Medium

Security vulnerability in pyjwt

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