CVE-2026-115718

Frappe Builder versions 1.33.0 before1.36.0 contain a missing authorization vulnerability in the improve_prompt endpoint that allows any authenticated non-Guest session to invoke LLM completions without proper permission checks. Attackers can call the improve_prompt API to leverage the site owner's stored OpenRouter API key via resolve_api_key, consuming paid LLM credits and effectively turning the site into a free LLM proxy.

CVSS v3 4.3 MEDIUM

4.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact LOW

Scope UNCHANGED

References

Link	Resource
https://github.com/frappe/builder/releases/tag/v1.36.0
https://github.com/frappe/builder/security/advisories/GHSA-58mj-c563-p78w
https://www.vulncheck.com/advisories/frappe-builder-before-missing-authorization-via-improve-prompt

Configurations

No configuration.

History

26 Oct 2026, 12:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-26 12:17

Updated : 2026-10-26 17:17

NVD link : CVE-2026-115718

Mitre link : CVE-2026-115718

CVE.ORG link : CVE-2026-115718

JSON object : View

Products Affected

No product.

CWE

CWE-862

Missing Authorization

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