CVE-2018-1256

Severity: high (CVSS 8.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.6% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2018-05-07 · updated 2026-06-17

Description

Spring Cloud SSO Connector, version 2.1.2, contains a regression which disables issuer validation in resource servers that are not bound to the SSO service. In PCF deployments with multiple SSO service plans, a remote attacker can authenticate to unbound resource servers which use this version of the SSO Connector with tokens generated from another service plan.

Affected products

Pivotal Spring Cloud SSO Connector: 2.1.2
Pivotal Spring Cloud SSO Connector: 2.1.2

References

https://pivotal.io/security/cve-2018-1256
https://pivotal.io/security/cve-2018-1256

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