CVE-2026-4957

Name: CVE-2026-4957
Creator: NVD / NIST
Published: 2026-03-27T15:17:03.563+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

LOWCVSS 2/10EPSS 0.28%

Last modified Jun 17, 2026

CVE-2026-4957 is a low-severity vulnerability rated 2/10 on the CVSS scale. A flaw has been found in OpenBMB XAgent 1.0.0. The impacted element is the function FunctionHandler.handle_tool_call of the file XAgent/function_handler.py of the component API Key Handler. EPSS estimates a 0.28% chance of exploitation in the next 30 days.

Description

A flaw has been found in OpenBMB XAgent 1.0.0. The impacted element is the function FunctionHandler.handle_tool_call of the file XAgent/function_handler.py of the component API Key Handler. This manipulation of the argument api_key causes sensitive information in log files. The attack may be initiated remotely. The exploit has been published and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

Metrics

CVSS 3.1

2.7/10

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

CVSS 4.0

2/10

CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS Probability

0.28%

19.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Openbmb	Xagent	1.0.0

References

https://gist.github.com/YLChen-007/6279f3de0c2dff7732eaaf820843b562Exploit, Third Party Advisory
https://vuldb.com/?ctiid.353834Permissions Required, VDB Entry
https://vuldb.com/?id.353834Permissions Required, VDB Entry
https://vuldb.com/?submit.777615Issue Tracking, Third Party Advisory

Timeline

Published: Mar 27, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-4957?

How severe is CVE-2026-4957?

CVE-2026-4957 has a CVSS score of 2/10 (LOW severity). The EPSS model estimates a 0.28% probability of exploitation in the next 30 days.

How do I fix CVE-2026-4957?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-4957?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST