n8n before 2.36.2 Expression Sandbox Bypass via SpreadElement
Impact
n8n versions before 2.36.2 have an expression sandbox bypass vulnerability, allowing authenticated users with workflow-edit permission to mutate host objects. The weakness is due to free identifiers in certain positions resolving against process globals. Changes persist process-wide until restart.
Summarized by @cf/meta/llama-3.3-70b-instruct-fp8-fast. Verify details against the original sources.Affected packages
Affected products
Vendor version evidence. Product records are separate from automatic dependency matching.
n8n-io · VulnCheck
n8n
2 ranges
n8n-io · VulnCheck
n8n
Package identity
pkg:npm/n8nExplore n8n →Identity supplied by VulnCheck. Version matching requires compatible range evidence.
Compare with this publisher’s ranges. This does not inspect your installation.
affected
2.36.0 → before 2.36.2
semver versions
unaffected
2.36.2
semver versions
Other versions: unaffected
n8n-io · VulnCheck
n8n
2 ranges
n8n-io · VulnCheck
n8n
Package identity
pkg:npm/n8nExplore n8n →Identity supplied by VulnCheck. Version matching requires compatible range evidence.
Compare with this publisher’s ranges. This does not inspect your installation.
affected
0 → before 2.35.4
semver versions
unaffected
2.35.4
semver versions
Other versions: unaffected
Original source description
n8n versions before 2.36.2 contain an expression sandbox bypass vulnerability where free identifiers in spread, computed-key, switch-case, or class-extension positions resolve against process globals. Authenticated users with workflow-edit permission can mutate host objects through expression evaluation, with changes persisting process-wide until restart.
Inside the record
Evidence available
Describes the evidence in this view, not whether the product is safe.
Original records
CVE-2026-85165View the latest unmodified CVE JSON from the official source. It may be newer than this imported page.
cve.new JSON →Underlying weaknesses
The source’s classification of what caused the vulnerability.
Environment requirements
These conditions apply together as specified by the publisher. A matching product name alone does not establish exposure.
VulnCheck · platform conditions
Any condition may hold
Vulnerable product
cpe:2.3:a:n8n:n8n:*:*:*:*:*:*:*:*From (inclusive): 2.36.0
Before: 2.36.2
Any condition may hold
Vulnerable product
cpe:2.3:a:n8n:n8n:*:*:*:*:*:*:*:*Before: 2.35.4
Original applicability statements
[
{
"nodes": [
{
"operator": "OR",
"negate": false,
"cpeMatch": [
{
"vulnerable": true,
"criteria": "cpe:2.3:a:n8n:n8n:*:*:*:*:*:*:*:*",
"versionEndExcluding": "2.36.2",
"versionStartIncluding": "2.36.0"
}
]
}
]
},
{
"nodes": [
{
"operator": "OR",
"negate": false,
"cpeMatch": [
{
"vulnerable": true,
"criteria": "cpe:2.3:a:n8n:n8n:*:*:*:*:*:*:*:*",
"versionEndExcluding": "2.35.4"
}
]
}
]
}
]Contributing organizations · 2
Assigning organization
Additional data publisher
What changed
Follow changesLarge field values are marked as truncated previews. Original source snapshots remain retained.