Findings

CVE-2026-111388

Frappe before 16.33.0 restrict_ip Allowlist Bypass via API Key, OAuth Authentication

Published Oct 16, 2026 · updated Oct 16, 2026 · frappe frappe

Frappe Framework before 15.120.0 and 16.x before 16.33.0 does not enforce the per-user restrict_ip allowlist for non-session authentication methods, including API key, OAuth, and header-based authentication. Attackers holding valid credentials of these types can authenticate from IP addresses outside the allowlist, defeating the configured network-based access restrictions.

Code

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

Timeline

Detection, updates, and resolution for this record.

  1. Oct 16, 2026 · CIRCL Vulnerability Lookup

    Detected

    Frappe Framework before 15.120.0 and 16.x before 16.33.0 does not enforce the per-user restrict_ip allowlist for non-session authentication methods, including API key, OAuth, and header-based authentication. Attackers holding valid credentials of these types can authenticate from IP addresses outside the allowlist, defeating the configured network-based access restrictions.

  2. Oct 16, 2026 · NIST NVD

    Updated

    Frappe Framework before 15.120.0 and 16.x before 16.33.0 does not enforce the per-user restrict_ip allowlist for non-session authentication methods, including API key, OAuth, and header-based authentication. Attackers holding valid credentials of these types can authenticate from IP addresses outside the allowlist, defeating the configured network-based access restrictions.

Affected

  • vendor frappe frappeversion unspecified

Sources

  • CIRCL Vulnerability LookupVulnerability recordCVE-2026-111388

    Frappe Framework before 15.120.0 and 16.x before 16.33.0 does not enforce the per-user restrict_ip allowlist for non-session authentication methods, including API key, OAuth, and header-based authentication. Attackers holding valid credentials of these types can authenticate from

    vulnerability.circl.lu
  • CVE.orgVulnerability recordCVE-2026-111388

    Frappe Framework before 15.120.0 and 16.x before 16.33.0 does not enforce the per-user restrict_ip allowlist for non-session authentication methods, including API key, OAuth, and header-based authentication. Attackers holding valid credentials of these types can authenticate from

    cve.org
  • NIST NVDVulnerability recordCVE-2026-111388

    Frappe Framework before 15.120.0 and 16.x before 16.33.0 does not enforce the per-user restrict_ip allowlist for non-session authentication methods, including API key, OAuth, and header-based authentication. Attackers holding valid credentials of these types can authenticate from

    nvd.nist.gov

References

CVE-2026-111388 · ZeroDay Findings