CVE-2026-77071
criticalpriority · track · 39EPSS 0.006 · 49 %ileUSEPSS · scored 2026-10-27
n8n before 1.123.69, 2.33.4, and 2.34.1 contains a PostgREST filter injection vulnerability in the Supabase node's Row Get Many, Delete, and Update operations, which built filter queries by concatenating an expression-bindable value without escaping. An attacker could inject a condition that widened the filter to match every row, turning an intended single-row operation into full-table disclosure, deletion, or modification.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · low–critical · 2.9–9.8
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (3)
Products and version ranges known to be affected.
sources
Which sources assert this record, and when.
references (2) nvd
External citations — patches, advisories, analysis.
- https://github.com/n8n-io/n8n/security/advisories/GHSA-f4f3-2g67-4vhmMitigationVendor Advisory
- https://www.vulncheck.com/advisories/n8n-before-postgrest-filter-injection-via-supabaseThird Party Advisory
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