CVE-2026-4959 describes a missing authentication vulnerability in OpenBMB XAgent version 1.0.0, specifically impacting the ShareServer WebSocket Endpoint's check_user function. Rated high severity (CVSS 7.3), this flaw allows unauthenticated remote attackers to bypass authentication by manipulating the 'interaction_id' argument, leading to potential unauthorized access and low impact on confidentiality, integrity, and availability. While the exploit has been publicly disclosed, there is no evidence of active exploitation, nor are there readily available exploits in common frameworks like Metasploit, and community discussion remains minimal.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
1.0.0CPE matchmatch criteria | cpe:2.3:a:openbmb:xagent:1.0.0:*:*:*:*:*:*:* |
CVSS version used by this source: 4.0
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/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
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.