CVE-2026-82244 budibase CVE debrief

Who should care

Budibase server administrators and users with plugin upload privileges should assess exposure and prioritize upgrading to version 3.41.3 or later. Operators managing Budibase deployments, platform security teams, and vulnerability management teams should review the vulnerability and implement necessary mitigations. Security teams should monitor for suspicious plugin activity and review compensating controls for exposed systems.

Why it matters

CVE-2026-82244 is a critical remote code execution vulnerability in Budibase server versions before 3.41.3, allowing authenticated admin users to execute arbitrary code via malicious plugin tarballs. Defenders should prioritize upgrading to version 3.41.3 or later and restrict plugin uploads to trusted sources.

• Remote code execution with root privileges
• Exfiltration of environment variables and credentials
• Potential for lateral movement within the network
• Need for immediate patching and monitoring

Technical summary

The Budibase server vulnerability allows authenticated admin users to execute arbitrary code by uploading a malicious plugin tarball, which is then executed via eval() in the main Node.js process without sandboxing. This enables attackers to exfiltrate environment variables and credentials with root privileges in default deployments. The vulnerability exists in Budibase server versions before 3.41.3 and can be mitigated by upgrading to version 3.41.3 or later and restricting plugin uploads to trusted sources. Defenders should assess exposure and prioritize patching.

Defensive priority

High priority for Budibase server administrators to upgrade to version 3.41.3 or later and restrict plugin uploads to trusted sources.

Recommended defensive actions

• Upgrade Budibase server to version 3.41.3 or later
• Restrict plugin uploads to trusted sources
• Monitor for suspicious plugin activity
• Review compensating controls for exposed systems while remediation is scheduled and verified
• Check relevant monitoring, detection, and logs for exposed assets that need extra review
• Track exceptions, retest remediated assets, and close the item only after evidence is documented
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up

Evidence notes

The CVE record and Budibase advisory confirm the vulnerability in plugin handling, allowing remote code execution via eval() in the main Node.js process. The vulnerability exists in Budibase server versions before 3.41.3. Defenders should verify affected deployments, review official advisories, and assess exposure. Evidence is limited to public CVE and vendor information.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.