Vulnerability · Published Jun 1, 2026 · Assigned by vmware
CVE-2026-40965
Critical 10.0
In plain English
A critical-severity information exposure in CF Deployment from Cloud Foundry Foundation. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 28% of all known vulnerabilities).
Official description
Cloud Foundry UAA versions v76.12.0 through v78.12.0 are vulnerable to a private key exposure. The server contains a vulnerability where EC (Elliptic Curve) private keys are inadvertently exposed through the public /token_keys endpoint. This endpoint is designed to provide public key material for JWT token verification but incorrectly exposes private key components for EC keys. The vulnerability affects deployments using EC keys for JWT token signing. The vulnerability does not affect RSA key configurations, only deployments using EC keys for JWT signing. Affected versions: - uaa_release: v76.12.0 through v78.12.0 (inclusive); fixed in v78.13.0 or later - CF Deployment: v30.0.0 through v56.0.0 (inclusive); fixed in v56.1.0 or later (bundles uaa_release v78.13.0)
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Cloud Foundry Foundation | uaa_release | 76.12.0 – before 78.13.0 |
| Cloud Foundry Foundation | CF Deployment | 30.0.0 – before 56.1.0 |
Weakness: CWE-200 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:L