CVE-2026-65974Network attack vector

Low-privilege RCE via unguarded render_template

Published Aug 17, 2026 · Updated Aug 18, 2026

Server-side template injection in Frappe safe execution in Frappe ERPNext before 15.111.0 and 16.22.0 allows remote authenticated users to execute code via crafted template input. In frappe/utils/safe_exec.py, render_safe_globals exposed frappe.render_template directly, and the vulnerable call path did not force restrict_globals until commit 529d190 replaced it with a wrapper that always sets that guard. Any low-privilege account that can reach a safe-execution template sink can cross the intended permission boundary and run code in the server process, with resulting read, write, and service impact.

CVSS severity9.9
Critical
EPSS probability0.56%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Server-side template injection in Frappe safe execution in Frappe ERPNext before 15.111.0 and 16.22.0 allows remote authenticated users to execute code via crafted template input. In frappe/utils/safe_exec.py, render_safe_globals exposed frappe.render_template directly, and the vulnerable call path did not force restrict_globals until commit 529d190 replaced it with a wrapper that always sets that guard. Any low-privilege account that can reach a safe-execution template sink can cross the intended permission boundary and run code in the server process, with resulting read, write, and service impact.

The record

CVE
CVE-2026-65974
Published
Aug 17, 2026
Updated
Aug 18, 2026
Vendor
Frappe Technologies Pvt. Ltd.
Product
ERPNext
Classifications
CWE-1336, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 17, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 18, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 15.111.0
  2. Affected versionversion=>= 16.0.0, < 16.22.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Frappe Technologies Pvt. Ltd. · ERPNextversion=< 15.111.0; version=>= 16.0.0, < 16.22.0

Published CVSS scores

9.9GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-1336Improper Neutralization of Special Elements Used in a Template Engine
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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