What’s Vulnerable › Vulnerabilities

CVE-2026-85178: Helicone Cross-Tenant Provider Key Disclosure via Missing Organization Filter

• Severity: high (CVSS 7.7 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-03 · updated 2026-09-24
• Weakness: CWE-639

Description

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.

References

• https://github.com/Helicone/helicone
• https://github.com/Helicone/helicone/commit/ca34549ea56f7ed587843f82d9cc19baa1f36ba4
• https://github.com/Helicone/helicone/issues/5712
• https://www.vulncheck.com/advisories/helicone-cross-tenant-provider-key-disclosure-via-missing-organization-filter
• https://github.com/Helicone/helicone/issues/5712

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