Veracode Vulnerability DatabaseVERACODE:44323Json Web Token (JWT) Bypass
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
7.2 High
AI Score
Confidence
High
0.0005 Low
EPSS
Percentile
18.0%
json-web-token is vulnerable to Json Web Token (JWT) Bypass. The vulnerability is due to an insecure mechanism used while verifying the signature of a JWT. The library blindly trusts the algorithm listed in the token without further verification. An attacker can forge a token using the HS256 algorithm, resulting in an authentication bypass.
| CPE | Name | Operator | Version |
|---|---|---|---|
| json-web-token | le | 3.2.0 | |
| json-web-token | le | 3.2.0 |
Related
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
7.2 High
AI Score
Confidence
High
0.0005 Low
EPSS
Percentile
18.0%