Medium 4.2Published Oct 23, 2026

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

Updated under an hour ago (Oct 28, 2026, 8:20 AM ET)

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No exploitation reported and no EPSS estimate yet.

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Exploited in the last 30 days

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: 4.2 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N
Weakness (CWE): CWE-639
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: VulnCheck
NVD analysis: Deferred
Record last updated: Oct 23, 2026
First seen by InfoSec Signals: Oct 23, 2026

Affected products

Affected products

chatwoot chatwoot chatwoot:chatwoot (from the name)	before 4.17.0	CNA record

References

References

https://github.com/chatwoot/chatwoot/pull/15521	issue-tracking, patch
https://github.com/chatwoot/chatwoot/commit/2d173978fcd64e6927b407c171095a3a7ceb03dd	patch
https://github.com/chatwoot/chatwoot/releases/tag/v4.17.0	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
https://www.vulncheck.com/advisories/chatwoot-before-4.17.0-cross-account-authorization-bypass-via-source-id	third-party-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.