CVE-2026-84856— rowboatlabs rowboat Composio Webhook Endpoint route.ts req.json denial of service
Quick assessment
Affected
rowboatlabs rowboat
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.
在 rowboatlabs 的 rowboat 0.9.1 及更早版本中检测到一处漏洞。受影响的是 Composio Webhook 端点组件中文件 里的 / 函数。对请求数据的操控可能导致拒绝服务（DoS）攻击。该攻击可远程发起。此漏洞的利用方式已公开，可能已被利用。升级到 0.9.2 版本即可解决该问题，建议升级受影响组件。在 0.9.2 版本中，旧版 Next.js 应用被直接移除而非修补，因此未留下任何安全控制机制。
Possible ATT&CK Techniques 2 AI
T1059 · Command and Scripting Interpreter T1499 · Endpoint Denial of ServiceAffected Version Matrix 3
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| rowboatlabs | rowboat | 0.9.0 |
affected |
0.9.1 |
affected | ||
0.9.2 |
unaffected |
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I. Basic Information for CVE-2026-84856
Vulnerability Information
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Vulnerability Title
rowboatlabs rowboat Composio Webhook Endpoint route.ts req.json denial of service
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability was detected in rowboatlabs rowboat up to 0.9.1. The impacted element is the function request.text/req.json of the file apps/rowboat/app/api/composio/webhook/route.ts of the component Composio Webhook Endpoint. The manipulation results in denial of service. It is possible to launch the attack remotely. The exploit is now public and may be used. Upgrading to version 0.9.2 is sufficient to resolve this issue. Upgrading the affected component is recommended. The legacy Next.js app was deleted at 0.9.2 rather than patched, leaving no security control behind.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
不恰当的资源关闭或释放
Source: CVE Program / CVE List V5
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| rowboatlabs | rowboat | 0.9.0 |
cpe:2.3:a:rowboatlabs:rowboat:*:*:*:*:*:*:*:*
|
|
II. Public POCs for CVE-2026-84856
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2026-84856 (2)
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🔗 CVE-2026-84856 in rowboat third-party-advisory
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🔗 Submit #886260: Rowboat Labs Rowboat 0.1.0 Denial of Service Read full article third-party-advisory
Proof of Concept for CVE-2026-84856 (1)
Vendor Pages for CVE-2026-84856 (1)
Other References for CVE-2026-84856 (1)
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🔗 CVE-2026-84856 rowboatlabs rowboat Composio Webhook Endpoint route.ts req.json denial of service vdb-entry technical-description
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V. Comments for CVE-2026-84856
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