CVE-2026-54305

CRITICALNVD 9.99.9—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.9 under NVD CVSS v3. EPSS exploit probability: 0.3%, top 74% 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, nvd
9.9
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 9.9Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

n8n is an open source workflow automation platform. Prior to 1.123.55, 2.25.7, and 2.26.2, three EE endpoints used by the Dynamic Credentials feature accepted any authenticated n8n session without performing per-resource ownership or scope checks on the target workflow or credential. An authenticated user with no project membership or credential sharing relationship could enumerate credential identifiers, names, and types referenced by any private workflow in the instance, initiate an OAuth authorization flow against another user's credential to overwrite its stored tokens with tokens bound to an account they control, or revoke another user's stored credential tokens entirely. Workflows relying on a hijacked credential would subsequently execute under the attacker's OAuth identity, enabling data exfiltration to attacker-controlled external services and persistent takeover of integrations. Token revocation would break affected workflows. This vulnerability is fixed in 1.123.55, 2.25.7, and 2.26.2.

CVSS v3
9.9
EG Score
9.9(medium)
EPSS
26.3%
KEV
Not listed

Published

June 16, 2026

Last Modified

June 26, 2026

Advisory Details (1)

Auto-updated Jul 4, 2026
Patch available. Sources: github.
github Patch Available

Cross-Tenant Credential Takeover via Dynamic Credentials EE Endpoints · Advisory · n8n-io/n8n · GitHub

https://github.com/n8n-io/n8n/security/advisories/GHSA-2j5h-858j-5mpf

Vendor Advisories for CVE-2026-54305(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)
PackageVulnerable rangeFixed inDependents
n8n—2.25.7—

Weakness Classification(2)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 46× in last 7d / 130× 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.

Showing the most recent 100 of 130 total refreshes for this CVE.

  1. 2026-07-07 02:49 UTCEG score recompute
  2. 2026-07-06 22:56 UTCEG score recompute
  3. 2026-07-06 07:34 UTCEG score recompute
  4. 2026-07-06 03:41 UTCEG score recompute
  5. 2026-07-06 02:23 UTCEPSS rescore
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  1. 2026-07-03 04:56 UTCEG score recompute
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  26. 2026-06-29 14:06 UTCEPSS rescore
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  40. 2026-06-28 04:35 UTCEG score recompute
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  52. 2026-06-26 11:48 UTCEG score recompute▲ 1.00
  53. 2026-06-26 03:53 UTCNVD updateCVSS v3 → 9.9 · severity → CRITICAL
  54. 2026-06-25 20:03 UTCEG score recompute
  55. 2026-06-25 13:49 UTCEPSS rescore
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  59. 2026-06-24 08:40 UTCEG score recompute
  60. 2026-06-23 20:53 UTCEG score recompute▼ 1.00
  61. 2026-06-23 17:34 UTCNVD updateCVSS v3 → 8.9 · CVSS v4 → 8.9
  62. 2026-06-23 17:12 UTCEG score recompute
  63. 2026-06-23 13:28 UTCEG score recompute
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  73. 2026-06-21 23:48 UTCEG score recompute
  74. 2026-06-21 20:08 UTCEG score recompute
  75. 2026-06-21 16:16 UTCEG score recompute

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-54305?
CVE-2026-54305 is a critical vulnerability published on June 16, 2026. n8n is an open source workflow automation platform. Prior to 1.123.55, 2.25.7, and 2.26.2, three EE endpoints used by the Dynamic Credentials feature accepted any authenticated n8n session without performing per-resource ownership or scope checks on the target workflow or credential. An…
When was CVE-2026-54305 disclosed?
CVE-2026-54305 was first published in the National Vulnerability Database on June 16, 2026, with the most recent update on June 26, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-54305 actively exploited?
CVE-2026-54305 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 26.3% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-54305?
CVE-2026-54305 has a CVSS v3 base score of 9.9 (NVD).
How do I remediate CVE-2026-54305?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-54305, 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

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