Spring Cloud SSO Connector, version 2.1.2, contains a regression which disables issuer…
Priority LOW 38Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- High
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub.
Summary
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.
Why it matters now
EPSS 0.01578 75th percentileScored 2026-11-07
Fix Fixed io.pivotal.spring.cloud:spring-cloud-sso-connector (Maven): 2.1.3.RELEASE
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Pivotal | Spring Cloud SSO Connector | 2.1.2 | — | No fix listed | CNA |
| — | io.pivotal.spring.cloud:spring-cloud-sso-connector (Maven) | 2.1.2.RELEASE to before 2.1.3.RELEASE | 2.1.3.RELEASE | Patch available | GHSA-q4q2-93pw-qwgf |
- Spring Cloud SSO Connector VendorPivotal Affected 2.1.2 Fixed in — No fix listed CNA
- io.pivotal.spring.cloud:spring-cloud-sso-connector (Maven) Vendor— Affected 2.1.2.RELEASE to before 2.1.3.RELEASE Fixed in 2.1.3.RELEASE Patch available GHSA-q4q2-93pw-qwgf
Remediation
- Fix · GHSA-q4q2-93pw-qwgf io.pivotal.spring.cloud:spring-cloud-sso-connector (Maven) Fixed in 2.1.3.RELEASE Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2018-1256
- 2026-10-03 Alias added: GHSA-q4q2-93pw-qwgf
References
More Pivotal vulnerabilities
- TI-2017-05637 Improper input validation in Pivotal Spring Data REST and Spring Boot CVSS 3.0CRITICAL 9.8
- TI-2016-04299 When processing authorization requests using the whitelabel views in Spring Security… CVSS 3.0HIGH 8.8
- TI-2018-01165 Code injection in Pivotal Spring Security OAuth CVSS 3.0CRITICAL 9.8
- TI-2018-11237 DoS Attack via Range Requests CVSS 3.1HIGH 7.5
- TI-2019-02791 Apps Manager unverified SSL certs in Cloud Controller proxy CVSS 3.0CRITICAL 9.8
- TI-2018-11239 On Demand Services SDK Timing Attack Vulnerability CVSS 3.0CRITICAL 9.8
Sources
- CVE-2018-1256 · CVE Program
- CVE-2018-1256 · NVD
- FIRST EPSS
- GHSA-q4q2-93pw-qwgf · GitHub Advisory Database · CC BY 4.0
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