CVE-2026-38431
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedERPNext v15.103.1 and before is vulnerable to Server-Side Template Injection (SSTI). An attacker with permission to create or edit email templates can inject template expressions that are executed on the server when the template is rendered.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · high confidenceERPNext v15.103.1 and before contains a Server-Side Template Injection (SSTI) vulnerability in its email template functionality. An attacker with permission to create or edit email templates can inject malicious template expressions (e.g., Jinja2 syntax) that execute server-side code when the template is rendered, potentially leading to remote code execution.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE data<= 15.103.1CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Network
- Complexity
- Low
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Check installed ERPNext versionAccess the ERPNext system and locate the version information, typically found in the About section or system settingsAffected if The installed version is 15.103.1 or any version prior to it
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Identify users with email template permissionsReview the user role permissions in ERPNext to determine which users have the ability to create or edit email templatesAffected if Any user account beyond highly trusted administrators has create or edit permissions on email templates
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Verify email template functionality is accessibleNavigate to the email template management interface in ERPNext to confirm the feature is available and not disabledAffected if Email template creation or editing functionality is enabled and accessible to non-admin users
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Review recent email template modificationsExamine the audit logs or change logs for email templates to identify any unexpected or unauthorized changesAffected if Recent template modifications contain unusual Jinja2 syntax or patterns not consistent with normal email formatting
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Check for anomalous template rendering activityMonitor server logs for email template rendering events that show unexpected execution patternsAffected if Template rendering logs show attempts to execute arbitrary code or access system resources
A user is affected if they are running ERPNext version 15.103.1 or lower AND have email template creation/editing permissions granted to users beyond trusted administrators, making the SSTI vulnerability exploitable in their environment.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
From vendor dataUpgrade ERPNext to v15.103.2 or later to obtain the patched version. Until then, restrict email template creation/editing permissions to only trusted administrators and monitor for suspicious template modifications.
- Consultation3.0 h
- Implementation4.0 h
- Testing3.0 h
- Review / QA2.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $3,408.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2026-38431 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2026-38431 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
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