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Frappe ERPNext before 15.121.4 and 16.36.0 Missing Authorization via get_open_activities

ERPNext before 15.121.4 and 16.x before 16.36.0 lets an authenticated user read activity records, including private calendar events, linked to documents beyond their role. Fixed in 15.121.4 and 16.36.0.

Written by anthropic/claude-haiku-5.5 from the sources below. Verify against them.

7.1HighCNA
Exploited
No known exploitation
Fix
Fixed in 15.121.4, 16.36.0
Who is exposed
Specific setups only

Do first: Check whether your setup matches what the bug needs. Affects ERPNext before 15.121.4 and 16.x before 16.36.0

Published
Last modified
15/100 · provisional
Specific setups only
None on Exploit-DB, Metasploit or GitHub

Summary

Frappe ERPNext before 15.121.4 and 16.x before 16.36.0 contains a missing authorization vulnerability in erpnext.crm.utils.get_open_activities that exposes ToDo and Event records. Any authenticated user, including portal or no-role users, can supply arbitrary ref_doctype and ref_docname values to enumerate activities and private calendar event details.

cve.now Index

15Pcve.now Index 15 of 100 · methodology v3 · provisional
  • Exploitation?/40Unknown. No CISA SSVC exploitation rating yet
  • Exposure8/25Specific setups only, reachable over the network
  • Reach?/20Unknown. No tracked technology or package matched
  • Severity7.1/10CVSS 7.1
  • No patch0/5No signal

What would change the score

  • Would score about 65 if added to CISA KEV
  • Would score about 60 if CISA's SSVC rates exploitation active
  • Would score about 22 if CISA's SSVC rates it automatable

What to do

  • Check whether your setup matches what the bug needs.

    Affects ERPNext before 15.121.4 and 16.x before 16.36.0
  • Upgrade to a fixed version: 15.121.4, 16.36.0.

Timeline

  1. CVE published
  2. First seen by cve.now

Affected versions

  • frappe erpnext

    fixed in 15.121.4; From 16.0.0-beta.1 · fixed in 16.36.0

Evidence 6

  1. Advisory
  2. Patch
  3. Patch
  4. Repository
  5. Repository
  6. Link

Corrections

None so far.

Something wrong on this page? Report an error. Every fix is listed here.

Questions about CVE-2026-124314

Is CVE-2026-124314 being exploited?

It is not in CISA's Known Exploited Vulnerabilities catalog, and CISA's SSVC assessment does not mark exploitation as active. That does not mean it has not been attacked: vendors and researchers can report attacks before CISA lists them. No public exploit code is tracked.Source: cve.now feed data

What does this mean?

A missing authorization check in the get_open_activities function lets an authenticated user read activity records, including private calendar events, linked to arbitrary documents beyond their permitted role.Source: vulncheck.com, github.com

Which versions are affected by CVE-2026-124314?

erpnext: before 15.121.4; from 16.0.0-beta.1 before 16.36.0.Source: cve.now feed data

Am I affected, and how do I check?

ERPNext versions before 15.121.4 and 16.x before 16.36.0 are affected. To check an installation, compare its installed ERPNext version number against these version boundaries.Source: vulncheck.com, github.com

How do I fix CVE-2026-124314?

Upgrade to ERPNext 15.121.4 or 16.36.0, whichever matches the installed release line.Source: vulncheck.com, github.com