Authorization Bypass During JWT Issuer Validation with spring-security
8Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 3.3epss 0.7%
exploitation probability
0.7%top 52% of all CVEs
observed exploitation
nono source reports it
Spring Security versions 5.1.x prior to 5.1.2 contain an authorization bypass vulnerability during JWT issuer validation. In order to be impacted, the same private key for an honest issuer and a malicious user must be used when signing JWTs. In that case, a malicious user could fashion signed JWTs with the malicious issuer URL that may be granted for the honest issuer.
CVSS:3.0/AV:N/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:N
Affected products
Spring by Pivotal · Spring Security