CVE-2026-27577
unknown
CVSS v3
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CVSS v4 NEW
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VIR risk
—
Description
n8n: Expression Sandbox Escape Leads to RCE
Predictions
Exploit likelihood
30%
Patch ETA
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Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
References
- https://github.com/n8n-io/n8n/security/advisories/GHSA-v98v-ff95-f3cp
- https://github.com/n8n-io/n8n/security/advisories/GHSA-vpcf-gvg4-6qwr
- https://nvd.nist.gov/vuln/detail/CVE-2026-27577
- https://github.com/n8n-io/n8n/commit/1479aab2d32fe0ee087f82b9038b1035c98be2f6
- https://github.com/n8n-io/n8n/commit/9e5212ecbc5d2d4e6f340b636a5e84be6369882e
- https://docs.n8n.io/hosting/securing/overview
- https://github.com/n8n-io/n8n
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.