n8n is an open source workflow automation platform. Prior to 1.123.76, 2.37.7, and 2.38.2, the Git node clone operation matched an attacker-controlled destination path against the default N8N_BLOCK_FILE_PATTERNS regular expression. The pattern ^(./).git(/.)$ allowed catastrophic backtracking and ran synchronously in the main n8n process. An authenticated workflow editor could therefore freeze the instance with one workflow execution; the affected default is declared in packages/@n8n/config/src/configs/security.config.ts. This issue is fixed in versions 1.123.76, 2.37.7 and 2.38.2.
CVE-2026-86081
HIGHPre-NVD 7.17.1—
EchelonGraph scoreMEDIUM confidence
This high-severity CVE scores 7.1 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.3%, top 75% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
Triggered by: NVD CVSS baseline
Sources: epss, secondary
7.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
- High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.1Exploit: None knownExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 7.1
- EG Score
- 7.1(medium)
- EG Risk
- 47(Track)EG Risk 47/100SSVC: Track
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity71% × 45%Exploitation0% × 40%Automatability100% × 15%Action: Routine — remediate on your standard cadence. - EPSS PROB
- 0%
- EPSS %ILE
- 25%
- KEV
- Not listed
Published
September 8, 2026
Last Modified
September 9, 2026
Advisory Details (4)
Auto-updated Sep 8, 2026Patch available. Sources: github, github_release.
github_release Patch Available
[email protected]
Patch available: n8n-io/n8n [email protected] (pre-release)
https://github.com/n8n-io/n8n/releases/tag/[email protected]github_release Patch Available
[email protected]
Patch available: n8n-io/n8n [email protected]
https://github.com/n8n-io/n8n/releases/tag/[email protected]github_release Patch Available
[email protected]
Patch available: n8n-io/n8n [email protected]
https://github.com/n8n-io/n8n/releases/tag/[email protected]github Patch Available
Regular Expression Denial of Service in the Default Blocked-File-Pattern Match via a Git Node Clone Path · Advisory · n8n-io/n8n · GitHub
https://github.com/n8n-io/n8n/security/advisories/GHSA-j535-v25q-vx3qVendor Advisories for CVE-2026-86081(1)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Affected Packages
(1 across 1 ecosystem)
npm(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| n8n | — | 1.123.76 | — |
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 13× in last 7d / 22× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-09-19 01:14 UTCEG score recompute
- 2026-09-18 19:28 UTCEPSS rescore
- 2026-09-18 03:09 UTCEG score recompute
- 2026-09-17 19:32 UTCEPSS rescore
- 2026-09-16 18:15 UTCEG score recompute
- 2026-09-16 14:09 UTCEPSS rescore
- 2026-09-16 06:27 UTCEG score recompute
- 2026-09-16 05:15 UTCEPSS rescore
- 2026-09-15 08:32 UTCEG score recompute
- 2026-09-15 03:12 UTCEPSS rescore
- 2026-09-15 03:12 UTCEPSS rescore
- 2026-09-13 23:31 UTCEG score recompute
- 2026-09-13 01:34 UTCEG score recompute
- 2026-09-11 16:40 UTCEG score recompute
- 2026-09-11 14:53 UTCEPSS rescore
- 2026-09-11 14:53 UTCEPSS rescore
- 2026-09-10 18:44 UTCEG score recompute
- 2026-09-09 14:29 UTCEG score recompute
- 2026-09-09 13:50 UTCEG score recompute
- 2026-09-08 22:31 UTCEG score recompute
- 2026-09-08 21:30 UTCEG score recompute
- 2026-09-08 21:29 UTCMITRE cvelistV5first tracked
Related CVEs(same CWE)
Frequently asked(5)
What is CVE-2026-86081?
CVE-2026-86081 is a high vulnerability published on September 8, 2026. n8n is an open source workflow automation platform. Prior to 1.123.76, 2.37.7, and 2.38.2, the Git node clone operation matched an attacker-controlled destination path against the default N8NBLOCKFILE_PATTERNS regular expression. The pattern ^(./).git(/.)$ allowed catastrophic backtracking and ran…
When was CVE-2026-86081 disclosed?
CVE-2026-86081 was first published in the National Vulnerability Database on September 8, 2026, with the most recent update on September 9, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-86081 actively exploited?
CVE-2026-86081 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 74.5% of all scored CVEs.
What is the CVSS score of CVE-2026-86081?
CVE-2026-86081 has a CVSS v3 base score of 7.1 (NVD).
How do I remediate CVE-2026-86081?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-86081, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.
Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-86081
Is Your Infrastructure Affected by CVE-2026-86081?
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.