CVE-2026-108602: Helicone through v2025.08.21-1 SSRF via Jawn Webhook Sender DNS Resolution
Medium · CVSS 4.3 (CVSS 3.1)EPSS 0.21%, 12th percentilePublished Updated Assigner: VulnCheck
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.
Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N · CWE-918
Tracked companies
Mapped from the CVE’s affected-product data, NVD CPE matches, vendor advisories or package feeds. A mapping means the vendor’s software is named, not that its hosted service was exposed.
Status incidents that name it
No tracked status incident names this CVE.
Affected vendors and products
Helicone: helicone
References
- CVE record on cve.org (opens in new tab)
- NVD entry (opens in new tab)
- github.com/Helicone/helicone (opens in new tab)
- github.com/Helicone/helicone/blob/067d9290acb4f1fc9320e902fc67b4b399b50363/valha… (opens in new tab)
- github.com/Helicone/helicone/blob/067d9290acb4f1fc9320e902fc67b4b399b50363/valha… (opens in new tab)
- hackmd.io/@haind/helicone-webhook-dns-ssrf (opens in new tab)
- www.vulncheck.com/advisories/helicone-through-2025.08.21-1-ssrf-via-jawn-webhook-sender… (opens in new tab)
- CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (opens in new tab)
- This product uses data from the NVD API but is not endorsed or certified by the NVD. (opens in new tab)
- Known Exploited Vulnerabilities catalog from CISA. (opens in new tab)
- EPSS scores from FIRST (Exploit Prediction Scoring System). (opens in new tab)