CVE-2026-38431: ERPNext v15.103.1 and before is vulnerable to Server-Side Template Injection (SSTI)

Q: How do I fix CVE-2026-38431?

erpnext: upgrade to newer than 15.103.1. Exact commands for each OS are on this page.

Q: Is CVE-2026-38431 being exploited?

CVE-2026-38431 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-38431 affect?

CVE-2026-38431 affects erpnext. Severity is critical (CVSS 9.8). ERPNext 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

Q: How urgent is CVE-2026-38431?

Priority 53/100. Critical severity; Public exploit reference; Remotely exploitable, no login, no user action

This week

CRITICAL 9.8REMOTEUPGRADE

CVE-2026-38431 is a critical-severity flaw (CVSS 9.8) affecting erpnext. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

ERPNext 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.

Why this priority

Critical severity
Public exploit reference
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.4% (top 67%)
CISA exploited list	No
Weakness	CWE-94
Published	2026-05-05
Last modified	2026-07-24

Publisher (CNA): MITRE · Vendor: frappe

Last updated 2026-07-24 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-05-05 17:17 UTCPublished CVE record published
2026-07-24 21:10 UTCUpdated Record last modified

frappe erpnext UPGRADE

Affected: <= 15.103.1

Fixed in: newer than 15.103.1

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy erpnext || rpm -q erpnext || erpnext --version

2. UPGRADE to newer than 15.103.1 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade erpnext

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade erpnext

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-38431?

erpnext: upgrade to newer than 15.103.1. Exact commands for each OS are on this page.

Is CVE-2026-38431 being exploited?

CVE-2026-38431 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-38431 affect?

CVE-2026-38431 affects erpnext. Severity is critical (CVSS 9.8). ERPNext 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

How urgent is CVE-2026-38431?

Priority 53/100. Critical severity; Public exploit reference; Remotely exploitable, no login, no user action

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References

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