CVE-2018-1256

Name: CVE-2018-1256
Creator: NVD / NIST
Published: 2018-05-07T16:22:00.217+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.1/10EPSS 1.59%

Last modified Jun 17, 2026

CVE-2018-1256 is a high-severity vulnerability rated 8.1/10 on the CVSS scale. 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.. EPSS estimates a 1.59% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

8.1/10

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

EPSS Probability

1.59%

72.5th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Vmware	Spring Cloud Sso Connector	2.1.2

References

https://pivotal.io/security/cve-2018-1256Mitigation, Vendor Advisory
https://pivotal.io/security/cve-2018-1256Mitigation, Vendor Advisory

Timeline

Published: May 7, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-1256?

How severe is CVE-2018-1256?

CVE-2018-1256 has a CVSS score of 8.1/10 (HIGH severity). The EPSS model estimates a 1.59% probability of exploitation in the next 30 days.

How do I fix CVE-2018-1256?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2018-1256?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST