CVE-2026-55242

Restricted data disclosure via batch naming template

Published Jul 15, 2026 · Updated Jul 15, 2026

Server-side template injection in Frappe ERPNext 15 before 15.111.0 and 16 before 16.22.0 allows attackers to disclose restricted data. Batch autonaming treats Stock Settings.naming_series_prefix as a naming template, causing injected template expressions to be evaluated. A standard operational role and authenticated access are required, and exploitation exposes data outside the account's permission scope.

CVSS severity8.8
High
EPSS probability0.20%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Server-side template injection in Frappe ERPNext 15 before 15.111.0 and 16 before 16.22.0 allows attackers to disclose restricted data. Batch autonaming treats Stock Settings.naming_series_prefix as a naming template, causing injected template expressions to be evaluated. A standard operational role and authenticated access are required, and exploitation exposes data outside the account's permission scope.

The record

CVE
CVE-2026-55242
Published
Jul 15, 2026
Updated
Jul 15, 2026
Vendor
Frappe Technologies Pvt. Ltd.
Product
ERPNext
Classifications
CWE-1336, CWE-863, T1213
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 15, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 15, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

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 vectorlocal
Required privilegesauthenticated

What is affected?

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

Published CVSS scores

8.8GitHub Security AdvisoryCVSS:3.1/AV:L/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)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-1336Improper Neutralization of Special Elements Used in a Template Engine
CWE-863Incorrect Authorization
T1213Data from Information Repositories

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

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo