Medium severity4.3NVD Advisory· Published Oct 10, 2026· Updated Oct 10, 2026
CVE-2026-108602
CVE-2026-108602
Description
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.
Affected products
1Patches
Vulnerability mechanics
References
4- github.com/Helicone/helicone/blob/067d9290acb4f1fc9320e902fc67b4b399b50363/valhalla/jawn/src/controllers/public/webhookController.tsnvd
- github.com/Helicone/helicone/blob/067d9290acb4f1fc9320e902fc67b4b399b50363/valhalla/jawn/src/lib/clients/webhookSender.tsnvd
- hackmd.io/@haind/helicone-webhook-dns-ssrfnvd
- www.vulncheck.com/advisories/helicone-through-2025.08.21-1-ssrf-via-jawn-webhook-sender-dns-resolutionnvd
News mentions
0No linked articles in our index yet.