Pivotal Concourse allows malicious redirect urls on login
Priority LOW 36CWE-601Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Spoofing
- Confidentiality · integrity · availability
- Low · Low · High
- Fix status
- Fixed
Attack profile from CVSS 3.0 · CNA. Fix status from CNA and GitHub. Impact type from CWE-601.
Summary
Pivotal Concourse Release, versions 4.x prior to 4.2.2, login flow allows redirects to untrusted websites. A remote unauthenticated attacker could convince a user to click on a link using the oAuth redirect link with an untrusted website and gain access to that user's access token in Concourse.
Why it matters now
EPSS 0.01145 66th percentileScored 2026-11-07
Fix Fixed Concourse (Pivotal): 4.2.2github.com/concourse/concourse (Go): 5.2.8, 5.5.10, 5.8.1
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 | Concourse | 4.x to before 4.2.2 | 4.2.2 | Patch available | CNA |
| — | github.com/concourse/concourse (Go) | before 5.2.8 | 5.2.8 | Patch available | GHSA-9689-rx4v-cqgc |
| — | github.com/concourse/concourse (Go) | 5.3.0 to before 5.5.10 | 5.5.10 | Patch available | GHSA-9689-rx4v-cqgc |
| — | github.com/concourse/concourse (Go) | 5.6.0 to before 5.8.1 | 5.8.1 | Patch available | GHSA-9689-rx4v-cqgc |
- Concourse VendorPivotal Affected 4.x to before 4.2.2 Fixed in 4.2.2 Patch available CNA
- github.com/concourse/concourse (Go) Vendor— Affected before 5.2.8 Fixed in 5.2.8 Patch available GHSA-9689-rx4v-cqgc
- github.com/concourse/concourse (Go) Vendor— Affected 5.3.0 to before 5.5.10 Fixed in 5.5.10 Patch available GHSA-9689-rx4v-cqgc
- github.com/concourse/concourse (Go) Vendor— Affected 5.6.0 to before 5.8.1 Fixed in 5.8.1 Patch available GHSA-9689-rx4v-cqgc
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:pivotal_software:concourse:*:*:*:*:*:*:*:* | 4.0.0 to before 4.2.2 | Vulnerable | Spring by Pivotal |
- cpe:2.3:a:pivotal_software:concourse:*:*:*:*:*:*:*:* Versions 4.0.0 to before 4.2.2 Vulnerable ·Spring by Pivotal
Remediation
- Fix · CNA Concourse (Pivotal) Fixed in 4.2.2
- Fix · GHSA-9689-rx4v-cqgc github.com/concourse/concourse (Go) Fixed in 5.2.8 Advisory →
- Fix · GHSA-9689-rx4v-cqgc github.com/concourse/concourse (Go) Fixed in 5.5.10 Advisory →
- Fix · GHSA-9689-rx4v-cqgc github.com/concourse/concourse (Go) Fixed in 5.8.1 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2018-15798
- 2026-10-03 Alias added: GHSA-9689-rx4v-cqgc
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-2018-15798 · CVE Program
- CVE-2018-15798 · NVD
- FIRST EPSS
- GHSA-9689-rx4v-cqgc · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences