CVE•Published 2026-10-28•Modified 2026-10-28•0 articles on news•3 live references•NVD data
CVE-2026-118646
Vulnerability data via NVD (ingested)
CVSS v3.1
6.5
MEDIUM
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS percentile
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Weaknesses (CWE)
Description
n8n before 1.123.85, 2.43.5, and 2.44.1 contains a regular expression denial of service vulnerability that allows authenticated members to block the event loop via crafted glob patterns. Attackers who can create and run workflows can submit a wildcard-heavy File(s) Selector pattern causing exponential backtracking, making the UI, API, webhooks, and health checks unresponsive until restart.
Timeline
Published 2026-10-28
Modified 2026-10-28
External references
Search for exposed instances
Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).
Shodan · vuln tag0 hosts
vuln:CVE-2026-118646Hosts Shodan has explicitly fingerprinted as vulnerable.
More intel sources (5)
Shodan report
vuln:CVE-2026-118646Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2026-118646Censys host search filtered to this CVE id.
grep.app
CVE-2026-118646Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2026-118646GitHub code search for direct mentions.
Google dork
"CVE-2026-118646" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.
Known PoCs on GitHub
No public proof-of-concept repositories found for CVE-2026-118646 on GitHub.
We haven't classified any articles referencing CVE-2026-118646 yet. The external references above still apply.