Prototype Pollution in n8n HTTP Request Node Pagination Handling
CVE-2026-44789 is a critical prototype pollution vulnerability in the n8n workflow automation platform affecting the HTTP Request node. The issue is caused by improper validation of pagination parameters in the node's pagination handling logic, allowing a low-privileged authenticated user with workflow creation or modification permissions to inject attacker-controlled properties into JavaScript object prototypes. Because the pollution occurs at a global prototype level, the flaw can influence application behavior beyond the immediate request context. The available reporting indicates this can be leveraged in combination with other techniques or vulnerable nodes to achieve arbitrary code execution on the host running n8n. Affected versions are reported as n8n versions below 1.123.43, 2.20.7, and 2.22.1.
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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.
Mitigation
If you can’t patch tonight, do this now.
n8n-nodes-base.httpRequest to the NODES_EXCLUDE environment variable. These measures reduce exposure but do not fully eliminate the underlying risk.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
4 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
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.