Cloud Foundry Container Runtime allows a user to bypass security policy when talking to ETCD
Priority LOW 39CWE-284Published · Updated
Key facts
- Attack vector
- Adjacent network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.0 · CNA. Fix status from CNA. Impact type from CWE-284.
Summary
Cloud Foundry Container Runtime, versions prior to 0.29.0, deploys Kubernetes clusters utilize the same CA (Certificate Authority) to sign and trust certs for ETCD as used by the Kubernetes API. This could allow a user authenticated with a cluster to request a signed certificate leveraging the Kubernetes CSR capability to obtain a credential that could escalate privilege access to ETCD.
Why it matters now
EPSS 0.00668 52nd percentileScored 2026-11-07
Fix Fixed Cloud Foundry Container Runtime (CFCR) (Cloud Foundry): v0.29.0
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 |
|---|---|---|---|---|---|
| Cloud Foundry | Cloud Foundry Container Runtime (CFCR) | All to before v0.29.0 | v0.29.0 | Patch available | CNA |
- Cloud Foundry Container Runtime (CFCR) VendorCloud Foundry Affected All to before v0.29.0 Fixed in v0.29.0 Patch available CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:cloudfoundry:container_runtime:*:*:*:*:*:*:*:* | before 0.29.0 | Vulnerable | CloudFoundry Foundation |
- cpe:2.3:a:cloudfoundry:container_runtime:*:*:*:*:*:*:*:* Versions before 0.29.0 Vulnerable ·CloudFoundry Foundation
Remediation
- Fix · CNA Cloud Foundry Container Runtime (CFCR) (Cloud Foundry) Fixed in v0.29.0
Timeline
- 2026-10-02 Threatist record created from CVE-2019-3779
- 2026-10-03 Alias added: GHSA-pw4q-58pr-v79g
References
More Cloud Foundry vulnerabilities
- TI-2018-11240 UAA Privilege Escalation CVSS 3.0CRITICAL 9.9
- TI-2018-01169 Log Cache logs UAA client secret on startup CVSS 3.0CRITICAL 9.8
- TI-2018-07868 Cloud Foundry UAA MFA does not prevent brute force of MFA code CVSS 3.0CRITICAL 9.8
- TI-2026-18259 Cloud Foundry UAA SAML 2.0 Signature Bypass CVSS 3.1HIGH 8.6
- TI-2019-02813 Java Projects using HTTP to fetch dependencies CVSS 3.1CRITICAL 9.8
- TI-2024-24613 Authentication bypass by spoofing in Cloud Foundry haproxy-boshrelease CVSS 3.1CRITICAL 9.1
Sources
- CVE-2019-3779 · CVE Program
- CVE-2019-3779 · NVD
- FIRST EPSS
- GHSA-pw4q-58pr-v79g · GitHub Advisory Database · CC BY 4.0
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