# CVE-2026-123881: OpenBMB Internet of Agents Message app.py fetch_chat_record access control

Status: published. Published: 2026-11-07. Updated: 2026-11-07.

A vulnerability was found in OpenBMB Internet of Agents up to 9d78e88e47160eb42ee1ee8538c05e1c2c47877a. This issue affects the function fetch_chat_record of the file im_server/app.py of the component Message Handler. The manipulation of the argument comm_id results in improper access controls. The attack may be performed from remote. The exploit has been made public and could be used. The project was informed of the problem early through an issue report but has not responded yet.

## Remediation

No remediation reported in collected sources

## Affected products and versions

- OpenBMB / Internet of Agents: 9d78e88e47160eb42ee1ee8538c05e1c2c47877a (affected). Source: CNA: VulDB

## Severity and prioritization

- CVSS 4.0: 6.9 (medium); CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P; source: CNA: VulDB

- CVSS 3.1: 7.3 (high); CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:C; source: CNA: VulDB

- CVSS 3.0: 7.3 (high); CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:C; source: CNA: VulDB

- CVSS 2.0: 7.5 (high); AV:N/AC:L/Au:N/C:P/I:P/A:P/E:POC/RL:ND/RC:C; source: CNA: VulDB

- CISA KEV: No listing in collected sources

- EPSS: Not available

- SSVC: Not available

- Weaknesses: CWE-284, CWE-266

## Exploit evidence

- exploit: https://github.com/OpenBMB/IoA/issues/20 (CNA: VulDB)

## References

- https://vuldb.com/vuln/432019 (CNA: VulDB; vdb-entry, technical-description)

- https://vuldb.com/vuln/432019/cti (CNA: VulDB; signature, permissions-required)

- https://vuldb.com/cve/CVE-2026-123881 (CNA: VulDB; third-party-advisory)

- https://vuldb.com/submit/1033651 (CNA: VulDB; third-party-advisory)

- https://github.com/OpenBMB/IoA/issues/20 (CNA: VulDB; exploit, issue-tracking)

## Provenance

- CNA: VulDB: https://www.cve.org/CVERecord?id=CVE-2026-123881; retrieved 2026-11-07; source updated 2026-11-07

Revision: 76102aec3a9d509c8467e8ad1faa37b39fd2e2cae22161ea8d67b4148656a6ae

Canonical: https://y2.dev/cve/CVE-2026-123881

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