CVE-2026-108602

MediumCVSS 4.3

Published: 10/10/2026(UTC)Updated: 18/10/2026(UTC)Translated: 11/10/2026(UTC)NVD NIST

Exploitation Probability (EPSS)

Low risk

0.21%

11th percentile - higher than 11% of all known CVEs

Summary

Helicone through v2025.08.21-1 contains a server-side request forgery vulnerability in the Jawn webhook sender. Authenticated organization users can create webhooks with public hostnames that resolve or DNS-rebind to loopback or internal addresses, causing blind POST requests to internal HTTPS services.

Risk Assessment

An attacker can reach internal services, potentially leading to data exposure or further exploitation of internal infrastructure.

Recommendation

Update Helicone to a version later than v2025.08.21-1 and restrict the ability to create webhooks pointing to private addresses.

Other vulnerabilities in Helicone

CVE-2026-85178High
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.

Original NVD description (English source)

Helicone through v2025.08.21-1 contains a server-side request forgery vulnerability in the Jawn webhook sender that allows authenticated organization users to reach internal services by using hostnames resolving to private addresses. Attackers can create webhooks with public hostnames that resolve or DNS-rebind to loopback or internal addresses, causing blind POST requests to internal HTTPS services.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS