CVE-2026-84856
rowboatlabs rowboat Composio Webhook Endpoint route.ts req.json denial of service
CVSS Score
5.3
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-404 |
| Vendor | rowboatlabs |
| Product | rowboat |
| Published | Sep 2, 2026 |
| Last Updated | Sep 3, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
rowboatlabs / rowboat
0.9.0 0.9.1
References
vuldb.com: https://vuldb.com/vuln/398131 vuldb.com: https://vuldb.com/vuln/398131/cti vuldb.com: https://vuldb.com/cve/CVE-2026-84856 vuldb.com: https://vuldb.com/submit/886260 github.com: https://github.com/hackerguopeng/cve/tree/main/Rowboat_PreAuth_Body_Buffer_DoS_Report github.com: https://github.com/rowboatlabs/rowboat/releases/tag/v0.9.2
Credits
🔍 hackerguopeng (VulDB User) VulDB CNA Team