TI-2026-29616 Aliases CVE-2026-40965 GHSA-qc5f-2h9q-7m2g

Information disclosure in Cloud Foundry Foundation uaa_release

MEDIUM 49CWE-200Published 2026-06-01 · Updated 2026-06-03

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Attack requirements: None
Impact type: Information disclosure
Confidentiality · integrity · availability: High · High · Low
Fix status: Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-200.

Summary

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)

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00346 28th percentileScored 2026-11-07

Fix Fixed uaa_release (Cloud Foundry Foundation): 78.13.0CF Deployment (Cloud Foundry Foundation): 56.1.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: Yes
Technical impact: Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Cloud Foundry Foundation	uaa_release	76.12.0 to before 78.13.0	78.13.0	Patch available	CNA
Cloud Foundry Foundation	CF Deployment	30.0.0 to before 56.1.0	56.1.0	Patch available	CNA

uaa_release VendorCloud Foundry Foundation Affected 76.12.0 to before 78.13.0 Fixed in 78.13.0 Patch available CNA
CF Deployment VendorCloud Foundry Foundation Affected 30.0.0 to before 56.1.0 Fixed in 56.1.0 Patch available CNA

Remediation

Fix · CNA uaa_release (Cloud Foundry Foundation) Fixed in 78.13.0
Fix · CNA CF Deployment (Cloud Foundry Foundation) Fixed in 56.1.0

Timeline

2026-10-02 Threatist record created from CVE-2026-40965
2026-10-03 Alias added: GHSA-qc5f-2h9q-7m2g

References

Other 1

https://www.cloudfoundry.org/blog/cve-2026-40965-uaa-ec-private-key-disclosure/

TI-2026-35291 Federated OIDC Users Can Bypass externalGroupsWhitelist to Gain uaa.admin CVSS 4.0CRITICAL 9.2
TI-2026-29615 Improper authentication in Cloud Foundry Foundation log-cache_release CVSS 3.1HIGH 7.5
TI-2026-35283 Incorrect Permission Assignment Allows Local Privilege Escalation to SYSTEM via Executable Overwrite CVSS 4.0HIGH 8.5
TI-2026-35280 CVE-2026-47827 – BOSH CLI Powershell Injection CVSS 3.1HIGH 7.5
TI-2026-29662 OS command injection in Cloud Foundry Foundation BOSH CVSS 4.0HIGH 8.7
TI-2026-29661 OS command injection in Cloud Foundry Foundation BOSH Director CVSS 4.0HIGH 8.7

See all 12 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences