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Vulnerabilities

Security fix · CVE-2026-66003

Access control bypass via REST API

Published Aug 18, 2026 · catalog updated Aug 18, 2026 · Access control bypass via

Last checked Nov 2, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2026-66003. EPSS is 0.42%. Act only if a listed version of Access control bypass via is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (Access control bypass via).
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
High—
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.42%
Remediation
Version ranges on file
Affected products
pip frappe

### Impact Access control bypass via REST API on Linked DocTypes. ### Patches The issue has been patched, updating to the latest versions of Frappe Framework should resolve this. ### Workarounds There are no workarounds. Updating to the latest versions of Frappe Framework should resolve this.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • pip frappe<v15.115.0

How to fix CVE-2026-66003

  • Upgrade

    CVE-2026-66003 lists a fix boundary at v15.115.0. Compare the installed build with that boundary before you change production.

  • Version check

    Seen in <v15.115.0

  • Advisory

    Open the cve_org record and follow its fix.

  • Official advisories

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-66003. EPSS is 0.42%. Act only if a listed version of Access control bypass via is installed.

Which versions are affected?

Compare what you have installed with <v15.115.0. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 0.42%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Technology hubs

ERPNext / Frappe security

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Aug 18, 2026 · Maintainer security tabs

    Detected

    ### Impact Access control bypass via REST API on Linked DocTypes. ### Patches The issue has been patched, updating to the latest versions of Frappe Framework should resolve this. ### Workarounds There are no workarounds. Updating to the latest versions of Frappe Framework should resolve this.

Sources

  • CVE.orgVulnerability recordCVE-2026-66003

    Official CVE identifier

    cve.org
  • Maintainer security tabsVendor advisoryGHSA-p25m-7rvg-6fvr

    ### Impact Access control bypass via REST API on Linked DocTypes. ### Patches The issue has been patched, updating to the latest versions of Frappe Framework should resolve this. ### Workarounds There are no workarounds. Updating to the latest versions of Frappe Framework should resolve this.

    github.com

Freshness

Last verified in this catalog Nov 1, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • CVE.orgNov 2, 2026
  • Maintainer security tabsNov 1, 2026