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CVE-2026-108602— Helicone through v2025.08.21-1 SSRF via Jawn Webhook Sender DNS Resolution

Quick assessment

Affected
Helicone helicone
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Helicone 在版本 v2025.08.21-1 及之前存在一个服务器端请求伪造（SSRF）漏洞，该漏洞位于 Jawn 的 Webhook 发送器中。经过身份验证的组织用户可以利用解析为私有地址的主机名访问内部服务。攻击者可以创建包含公共主机名的 Webhook，这些主机名可通过 DNS 重绑定技术解析为环回地址或内部地址，从而向内部的 HTTPS 服务发送盲 POST 请求。

CVSS 4.3 · Medium EPSS 0.21% · P11

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 1

VendorProduct Version RangeStatus
Helicone helicone ≤ v2025.08.21-1 affected
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I. Basic Information for CVE-2026-108602

Vulnerability Information
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Vulnerability Title
Helicone through v2025.08.21-1 SSRF via Jawn Webhook Sender DNS Resolution
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
服务端请求伪造(SSRF)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Helicone helicone 0 ~ v2025.08.21-1 -

II. Public POCs for CVE-2026-108602

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2026-108602

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Patches & Fixes for CVE-2026-108602 (1)

Vendor Advisories for CVE-2026-108602 (1)

Other References for CVE-2026-108602 (2)

IV. Related Vulnerabilities

Same product: helicone
Same vendor: Helicone
Same weakness: CWE-918

V. Comments for CVE-2026-108602

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