What is the CVSS score of CVE-2026-27471?

CVE-2026-27471 has a CVSS 3.1 base score of 9.1 (Critical). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N. EPSS exploitation probability: 0.0%.

Which versions of Erpnext are affected by CVE-2026-27471?

A critical vulnerability in ERP versions up to 16.6.0 allows unauthorized users to access sensitive business documents without proper authentication, potentially exposing confidential financial, HR,…. A patch is available.

How to fix or mitigate CVE-2026-27471?

Within 24 hours: Identify all systems running ERP versions 15.98.0, 16.0.0-rc.1 through 16.6.0 and isolate from production if possible; notify your legal and compliance teams. Within 7 days: Apply the available vendor patch to all affected instances and verify patch deployment. Within 30 days: Conduct access logs review for unauthorized document access during the vulnerability window and document findings for incident response procedures.

Erpnext CVE-2026-27471

CRITICAL

Improper Access Control (CWE-284)

2026-02-21 security-advisories@github.com

Authentication Bypass Erpnext

9.1

CVSS 3.1 · GitHub Advisory

Severity by source

GitHub Advisory PRIMARY

9.1 CRITICAL

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Primary rating from GitHub Advisory · only source for this CVE.

CVSS VectorGitHub Advisory

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

None

Lifecycle Timeline

Analysis Generated

Mar 12, 2026 - 22:04 vuln.today

Patch released

Feb 24, 2026 - 14:52 nvd

Patch available

CVE Published

Feb 21, 2026 - 07:16 nvd

CRITICAL 9.1

DescriptionGitHub Advisory

ERP is a free and open source Enterprise Resource Planning tool. In versions up to 15.98.0 and 16.0.0-rc.1 and through 16.6.0, certain endpoints lacked access validation which allowed for unauthorized document access. This issue has been fixed in versions 15.98.1 and 16.6.1.