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Erpnext CVE-2026-27471

CRITICAL
Improper Access Control (CWE-284)
2026-02-21 security-advisories@github.com
9.1
CVSS 3.1 · GitHub Advisory
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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain

  1. Access
    Access vulnerable ERP endpoint
  2. Exploit
    Bypass missing access validation
  3. Execution
    Retrieve unauthorized documents
  4. Impact
    Exfiltrate sensitive data

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A01:2025 - Broken Access Control
ASVS 5.0
V8 - Authorization Access control enforcement
MITRE ATT&CK

1 technique across 1 tactic: Defense Evasion

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

Exploitation Conditions

No special conditions — remote unauthenticated exploitation against default ERP installations versions 15.98.0, 16.0.0-rc.1 through 16.6.0 with unpatched endpoints lacking access validation.

Impact

CVSS 9.1.

Exploit ScenarioDerived

Access ERP endpoints without authorization.

Act Now Prioritize within 24-48h. Why: CRITICAL severity.
Patch available 0.0% exploitation probability (EPSS)

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AnalysisAIv1 – Mar 12, 2026

Missing authorization in ERPNext ERP before 15.98.0/16.6.0. Patch available.

Earlier versions of this analysis (1)
v1 Mar 12, 2026 - 22:04 CVSS 9.1

Missing auth in ERPNext.

RemediationAI

Update ERPNext.

Affects your stack

Find out whether the stacks and servers you run are on an affected version.

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

CWE-284.

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  • Exploit and PoC references, threat intelligence from 22 sources

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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

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
None

Lifecycle Timeline

2
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.

Executive ViewAI

Why It Matters

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, and operational data. All organizations running affected versions face immediate risk of data breach and regulatory compliance violations.

Business Impact: Severe
Compensating Controls

Apply vendor patch. If patching is delayed: implement WAF rules to restrict access to vulnerable endpoints, enable detailed logging on document access endpoints, enforce network segmentation to limit ERP access to authorized users only, and disable document export features until patch is applied.

Threat Intelligence Overview

EPSS Score
0.0%
Top 88% exploitable
Data Quality
4 sources
Confidence: Medium

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity CRITICAL
CISA KEV No
Public POC No
EPSS 0.0%
Patch available Yes
Active threat No
Deciding rule
CRITICAL severity
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Out-of-Cycle
Exploitation· derived
None
System Exposure· derived
Open
Automatable· derived
Yes
Human Impact
Very High

Priority Score

46
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +46
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Authentication bypass attacks exploit flaws in the verification mechanisms that control access to systems and applications.

Affected Products (CPE)GitHub Advisory

cpe:2.3:a:frappe:erpnext:*:*:*:*:*:*:*:*
cpe:2.3:a:frappe:erpnext:*:*:*:*:*:*:*:*
cpe:2.3:a:frappe:erpnext:16.0.0:-:*:*:*:*:*:*
cpe:2.3:a:frappe:erpnext:16.0.0:rc1:*:*:*:*:*:*
cpe:2.3:a:frappe:erpnext:16.0.0:rc2:*:*:*:*:*:*
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Frappe Framework ERPNext 13.4.0 contains a sandbox escape vulnerability in RestrictedPython that allows authenticated us

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