Prototype Pollution RCE in n8n XML and GSuiteAdmin Nodes
CVE-2026-33696 affects n8n, an open source workflow automation platform. In versions prior to 2.14.1, 2.13.3, and 1.123.27, the XML and GSuiteAdmin nodes contain a prototype pollution flaw in node parameter handling. An authenticated user with permission to create or modify workflows can supply crafted parameters in node configuration that cause attacker-controlled properties to be written onto Object.prototype. Because polluted prototype properties can influence application behavior globally, this condition can be leveraged to achieve remote code execution on the n8n instance.
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Impact, mitigation & remediation
What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
Impact
What an attacker gets, and what they’ve been doing with it.
Object.prototype and escalate that primitive into remote code execution on the affected n8n server. This can result in full compromise of the n8n instance, including arbitrary command or code execution in the context of the application, tampering with workflows and automation logic, access to data processed by n8n, and potential follow-on actions against connected systems and credentials managed by the platform.Mitigation
If you can’t patch tonight, do this now.
n8n-nodes-base.xml to the NODES_EXCLUDE environment variable. These measures are only temporary risk reductions and do not fully eliminate the vulnerability.Remediation
Patch, then assume compromise.
Exploits
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
Affected products & vendors
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
Recent activity
9 sources tracked across advisories and community write-ups. News coverage will land here when it surfaces.
No news coverage yet. Advisories and community discussion only.
The version that knows your environment.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.