Helicone's VaultManager.getDecryptedProviderKeyById() function in the GET /v1/vault/key/{providerKeyId} endpoint fails to validate the requester's organization against the vault key's organization identifier. Attackers with admin or owner privileges in any organization can retrieve decrypted upstream provider credentials for other tenants, including plaintext OpenAI, Anthropic, and Bedrock API keys.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
Low
Basic privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
High
Complete data leak
Integrity
None
No data modification
Availability
None
No disruption
CVSS Vector v4.0
Weakness Type (CWE)
References 4
https://github.com/Helicone/helicone
disclosure@vulncheck.com
https://github.com/Helicone/helicone/commit/ca34549ea56f7ed587843f82d9cc19baa1f…
disclosure@vulncheck.com
https://github.com/Helicone/helicone/issues/5712
disclosure@vulncheck.com
https://www.vulncheck.com/advisories/helicone-cross-tenant-provider-key-disclos…
disclosure@vulncheck.com