Auth bypass in Chatwoot
CVE-2026-115725
Chatwoot before 4.17.0 contains an authorization bypass vulnerability that allows authenticated agent bots to access other accounts by supplying a foreign contact inbox source_id. Attackers can call the conversations create endpoint with another account's source_id to create or retrieve conversations and post messages to that account's contacts.
Vulnerability class: IDOR (Insecure Direct Object Reference)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.2 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- github.com/chatwoot/chatwoot/pull/15521 (issue-tracking, patch)
- github.com/chatwoot/chatwoot/commit/2d173978fcd64e6927b407c171095a3a7ceb03dd (patch)
- github.com/chatwoot/chatwoot/releases/tag/v4.17.0 (release-notes)
- github.com/chatwoot/chatwoot/blob/v4.16.2/app/controllers/api/v1/accounts/conve… (technical-description)
- github.com/chatwoot/chatwoot/blob/v4.16.2/app/policies/inbox_policy.rb (technical-description)
- www.vulncheck.com/advisories/chatwoot-before-4.17.0-cross-account-authorization… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-115725?
- CVE-2026-115725 is a medium-severity vulnerability in Chatwoot, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 4.2/10. Published 2026-10-23.
- How severe is CVE-2026-115725?
- Medium severity. CVSS v3 base score is 4.2 out of 10.