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CVE-2026-27471

Frappe Erpnext authentication bypass

9.1 CRITICALEPSS 0.44%
  1. Published21 Feb 2026

Description

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.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Affected products

Frappe Erpnext> 16.0.0 < 16.6.1 · < 15.98.1 · 16.0.0

Remediation

Fixed in
Frappe Erpnext≥ 16.6.1

References

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Frequently asked

Is CVE-2026-27471 being actively exploited?

CVE-2026-27471 is not in the CISA KEV catalog. Its EPSS exploit probability is 0.44%.

How severe is CVE-2026-27471?

CVE-2026-27471 has a CVSS 3.1 base score of 9.1, rated critical. EPSS estimates a 0.44% probability of exploitation.

Which products are affected by CVE-2026-27471?

Affected products include Frappe Erpnext.

How do I fix CVE-2026-27471?

Upgrade affected software to a fixed version, for example Frappe Erpnext 16.6.1 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2026-27471 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.