Vulnerability · Published Oct 23, 2026 · Assigned by VulnCheck

CVE-2026-115725Chatwoot before 4.17.0 Cross-Account Authorization Bypass via source_id

Medium 4.2

In plain English

A medium-severity authorization bypass via user-controlled key in chatwoot from chatwoot. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 15% of all known vulnerabilities).

Severity (CVSS 3.1)4.2Medium

Exploit odds (30 days)0.2%top 84.8% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

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.

Affected products (as reported)

Vendor	Product	Versions
chatwoot	chatwoot	0 – before 4.17.0

Weakness: CWE-639 · Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N

References

https://github.com/chatwoot/chatwoot/pull/15521 issue-tracking, patch
https://github.com/chatwoot/chatwoot/commit/2d173978fcd64e6927b407c171095a3a7ceb03dd patch
chatwoot v4.17.0 Release Notes release-notes
https://github.com/chatwoot/chatwoot/blob/v4.16.2/app/controllers/api/v1/accounts/conversations_controller.rb#L206-L213 technical-description
https://github.com/chatwoot/chatwoot/blob/v4.16.2/app/policies/inbox_policy.rb#L22-L27 technical-description
VulnCheck Advisory: Chatwoot before 4.17.0 Cross-Account Authorization Bypass via source_id third-party-advisory