CVE-2026-85178Public exploitNetwork attack vectorHinoki check available

Cross-tenant provider key disclosure via missing organization check

Published Sep 3, 2026 · Updated Sep 3, 2026

Authorization bypass in Helicone allows remote authenticated users with organization-admin access to retrieve other tenants' provider keys. VaultManager.getDecryptedProviderKeyById() accepts a providerKeyId from GET /v1/vault/key/{providerKeyId} without matching the requester's organization to the key's organization. Admin or owner access in any organization is sufficient to disclose plaintext OpenAI, Anthropic, or Bedrock credentials from another tenant.

CVSS severity8.3
High
EPSS probability0.24%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Authorization bypass in Helicone allows remote authenticated users with organization-admin access to retrieve other tenants' provider keys. VaultManager.getDecryptedProviderKeyById() accepts a providerKeyId from GET /v1/vault/key/{providerKeyId} without matching the requester's organization to the key's organization. Admin or owner access in any organization is sufficient to disclose plaintext OpenAI, Anthropic, or Bedrock credentials from another tenant.

The record

CVE
CVE-2026-85178
Published
Sep 3, 2026
Updated
Sep 3, 2026
Vendor
Helicone
Product
Helicone
Classifications
CWE-639, T1555
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 3, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 3, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

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  1. Affected versionversion=0 <ca34549ea56f7ed587843f82d9cc19baa1f36ba4

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Helicone · Heliconeversion=0 <ca34549ea56f7ed587843f82d9cc19baa1f36ba4

Published CVSS scores

7.7VulnCheckCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
8.3VulnCheckCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-639Authorization Bypass Through User-Controlled Key
T1555Credentials from Password Stores

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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