Bug 2536031 (CVE-2026-92960)

Summary: CVE-2026-92960 vm2: vm2 before 3.11.6 Process-wide State Exposure via os and dns
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: high Docs Contact:
Priority: high    
Version: unspecifiedCC: abarbaro, alizardo, dschmidt, ikhan, jchui, jhe, jlanda, kshier, ktsao, nboldt, oaljalju, psrna, rbobbitt, simaishi, stcannon, yguenane
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in vm2. In configurations allowing built-in modules, vm2 fails to restrict access to the host operating system and Domain Name System (DNS) modules. An attacker who can execute code inside the sandbox can exploit this flaw to hijack the host process DNS resolver, redirecting outbound network queries to an attacker-controlled server. Additionally, this flaw allows the attacker to obtain sensitive host system information, such as process credentials and network topology, or alter process execution priorities.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Description OSIDB Bzimport 2026-09-17 13:58:39 UTC 
vm2 before 3.11.6 fails to restrict access to os and dns builtins under the builtin: ['*'] configuration, allowing sandbox code to read host process identity and network topology. Attackers can invoke dns.setServers() to hijack the host process DNS resolver globally, redirecting all subsequent host DNS queries through an attacker-controlled resolver.