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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 thr…

Critical CVSS 10.0
CVECVE-2026-40965
First seen2026-07-22 18:15 UTC
Disclosed2026-06-01 22:16 UTC
Last updated2026-07-22 19:15 UTC
Channel statusauto

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 c…

In-depth triage · Auto channel

No in-depth report has been generated yet (DR-003 v2 AI pipeline is under construction).

Lint boundary warnings (1)

The following non-blocking warnings were raised during the lint phase of this triage (e.g. reference URLs not yet on the allowlist). They do not affect entry usability and are disclosed for transparency (see DR-002).

  • REF_URL_NOT_ALLOWLISTED url not in allowlist: https://www.cloudfoundry.org/blog/cve-2026-40965-uaa-ec-private-key-disclosure/

Sources

  • NVD DATABASE

Original Links

Timeline

  1. nvd_ingest NVD