Medium severity · published Oct 23, 2026
CVE-2026-115725
Chatwoot before 4.17.0 Cross-Account Authorization Bypass via source_id
New
4.2
CVSS
0.2%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N
Attack vector
Network
Complexity
High
Privileges
Low
User interaction
None
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 15% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
CH
chatwoot · chatwoot
before 4.17.0 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-115725
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-115725
github.com
https://github.com/chatwoot/chatwoot/blob/v4.16.2/app/controllers/api/v1/accounts/conversations_controller.rb#L206-L213
github.com
https://github.com/chatwoot/chatwoot/blob/v4.16.2/app/policies/inbox_policy.rb#L22-L27
github.com
https://github.com/chatwoot/chatwoot/commit/2d173978fcd64e6927b407c171095a3a7ceb03dd
github.com
https://github.com/chatwoot/chatwoot/pull/15521
github.com
https://github.com/chatwoot/chatwoot/releases/tag/v4.17.0
www.vulncheck.com
https://www.vulncheck.com/advisories/chatwoot-before-4.17.0-cross-account-authorization-bypass-via-source-id
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