CVE-2026-39351: Frappe is a full-stack web application framework

This month

CRITICAL 9.1REMOTEUPGRADE

CVE-2026-39351 is a critical-severity flaw (CVSS 9.1) affecting frappe. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Frappe is a full-stack web application framework. Prior to 16.14.0 and 15.104.0, Frappe allows unrestricted Doctype access via API exploit.

Why this priority

Critical severity
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	9.1 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.3% (top 83%)
CISA exploited list	No
Weakness	CWE-862
Published	2026-04-07
Last modified	2026-07-24

Publisher (CNA): GitHub, Inc. · Vendor: frappe

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

Am I affected?

Timeline

2026-04-07 19:16 UTCPublished CVE record published
2026-07-24 21:10 UTCUpdated Record last modified

frappe frappe UPGRADE

Affected: < 15.104.0 · >= 16.0.0 and < 16.14.0

Fixed in: 15.104.0, 16.14.0

Safe to downgrade to: a release before 16.0.0

1. Check installed version

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

2. UPGRADE to 15.104.0 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade frappe

Note

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

3. If no update is available yet, DOWNGRADE to a release before 16.0.0 (Debian / Ubuntu)

apt-cache madison frappe sudo apt install frappe=<VERSION_BEFORE_16.0.0> sudo apt-mark hold frappe

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list frappe sudo dnf downgrade frappe-<VERSION_BEFORE_16.0.0> sudo dnf versionlock add frappe

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

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-2026-39351?

frappe: upgrade to 15.104.0, 16.14.0. Exact commands for each OS are on this page.

Is CVE-2026-39351 being exploited?

CVE-2026-39351 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-2026-39351 affect?

CVE-2026-39351 affects frappe. Severity is critical (CVSS 9.1). Frappe is a full-stack web application framework. Prior to 16.14.0 and 15.104.0, Frappe allows unrestricted Doctype access via API exploit.

How urgent is CVE-2026-39351?

Priority 41/100. Critical severity; Remotely exploitable, no login, no user action

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References

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