CVE-2026-123964 (CVSS 4.3)

Description

A vulnerability was detected in OpenBMB Internet of Agents up to 9d78e88e47160eb42ee1ee8538c05e1c2c47877a. This affects the function launch_goal of the file im_client/communication/communication_layer.py of the component Collaboration Layer. Performing a manipulation of the argument max_turns results in infinite loop. The attack may be initiated remotely. The exploit is now public and may be used. This product uses a rolling release model to deliver continuous updates. As a result, specific version information for affected or updated releases is not available. The project was informed of the problem early through an issue report but has not responded yet.

Is your site exposed to CVE-2026-123964?

Run a free security scan — no signup, results in seconds.

CVSS v3.1 Score

4.3

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

EPSS — Exploit Prediction

0.0045

Probability of exploitation

0.40%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-404 CWE-404

CWE-835 CWE-835

References

Other References

https://github.com/OpenBMB/IoA/issues/22 https://vuldb.com/cve/CVE-2026-123964 https://vuldb.com/submit/1033798 https://vuldb.com/vuln/432034 https://vuldb.com/vuln/432034/cti

Frequently Asked Questions

What is CVE-2026-123964? +

A vulnerability was detected in OpenBMB Internet of Agents up to 9d78e88e47160eb42ee1ee8538c05e1c2c47877a. This affects the function launch_goal of the file im_client/communication/communication_layer.py of the component Collaboration Layer. Performing a manipulation of the argument max_turns results in infinite loop. The attack may be initiated remotely. The exploit is now public and may be used. This product uses a rolling release model to deliver continuous updates. As a result, specific version information for affected or updated releases is not available. The project was informed of the problem early through an issue report but has not responded yet. It has a CVSS v3.1 base score of 4.3 (MEDIUM).

How severe is CVE-2026-123964? +

CVE-2026-123964 has a CVSS v3.1 score of 4.3 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance. The EPSS score is 0.0045, placing it in the 0th percentile for exploitation probability.

How do I check if I'm vulnerable to CVE-2026-123964? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

Related Vulnerabilities

CVE-2025-6202

Vulnerability in SK Hynix DDR5 on x86 allows a local attacker to trigger Rowhammer bit flips impacting the Hardware Integrity …

CVE-2026-33275

Improper resource shutdown or release for some Intel(R) PROSet/Wireless Wi-Fi Software for Windows within Ring 3: User Applications may allow …

CVE-2026-45174

Idira Endpoint Privilege Manager Linux Agent versions prior to 26.5 allow a local attacker to potentially compromise the agent daemon …

CVE-2026-17610

In SiSDK v2026.6.0 and earlier, high network traffic loads can cause a dropped ACK leading to a denial of service. …

CVE-2026-11317

A denial of service security issue exists in the affected product. The security issue stems from a fault occurring when …

CVE-2026-90440

Uncaught exception, improper handling of exceptional conditions, improper resource shutdown vulnerability in Apache Thrift D thrift.server.nonblocking.TNonblockingServer. This issue affects Apache …