CVE-2026-84856

CVE-2026-84856

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.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-84856?
CVE-2026-84856 is a medium-severity vulnerability, classified under Improper Resource Shutdown or Release. CVSS score: 5.3/10. Published 2026-09-02.
How severe is CVE-2026-84856?
Medium severity. CVSS v3 base score is 5.3 out of 10.