CVE-2026-66058Public exploitNetwork attack vector

Authenticated document-follow creation via missing permission checks

Published Aug 7, 2026 · Updated Aug 7, 2026

Missing authorization in Frappe Framework before 15.112.0 and 16.23.0 allows remote authenticated users to follow restricted documents. The update_follow path accepted caller-supplied DocType and document names, then created a Document Follow record without enforcing document-read or record-create permission. An authenticated account with follow notifications enabled could alter its own follow state for a restricted tracked document and receive later change notifications.

CVSS severity5.3
Medium
EPSS probability0.22%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing authorization in Frappe Framework before 15.112.0 and 16.23.0 allows remote authenticated users to follow restricted documents. The update_follow path accepted caller-supplied DocType and document names, then created a Document Follow record without enforcing document-read or record-create permission. An authenticated account with follow notifications enabled could alter its own follow state for a restricted tracked document and receive later change notifications.

The record

CVE
CVE-2026-66058
Published
Aug 7, 2026
Updated
Aug 7, 2026
Vendor
Frappe Technologies Pvt. Ltd.
Product
Frappe Framework
Classifications
CWE-862, CWE-639, T1213
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 7, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 7, 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=< 15.112.0
  2. Affected versionversion=>= 16.0.0-beta.1, < 16.20.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Frappe Technologies Pvt. Ltd. · Frappe Frameworkversion=< 15.112.0; version=>= 16.0.0-beta.1, < 16.20.0

Published CVSS scores

5.3GitHub CNACVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N

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 exploitPublished

Weakness, pattern, technique

CWE-862Missing Authorization
CWE-639Authorization Bypass Through User-Controlled Key
T1213Data from Information Repositories

Public exploit references

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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