CVE-2026-66001Frappe: Improper Authorization in OAuth2 Consent Endpoint
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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Frappe is a full-stack web application framework. Prior to 15.114.0 and 16.26.0, the approve and authorize functions in frappe/integrations/oauth2.py allow the OAuth2 consent flow to proceed without restricting approve to POST, without a csrf_token in frappe/templates/includes/oauth_confirmation.html, and without scoping an active OAuth token check to the requesting client. An attacker can cause an authenticated user to approve an OAuth grant or reuse authorization state for the wrong client, exposing data and permitting actions within the granted scopes. This issue is fixed in versions 15.114.0 and 16.26.0.
- CVSS
- 8.5 HIGH (v4.0, CNA)CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
- Weakness (CWE)
- CWE-352
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- GitHub_M
- NVD analysis
- Deferred
- Record last updated
- Aug 25, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
frappe frappe frappe:frappe (from the name) | before 15.114.0; from 16.0.0-beta.1, < 16.26.0 | CNA record |
References
- https://github.com/frappe/frappe/security/advisories/GHSA-2ph8-x773-8p2xx-refsource-confirm
- https://github.com/frappe/frappe/pull/40073x-refsource-misc
- https://github.com/frappe/frappe/pull/40700x-refsource-misc
- https://github.com/frappe/frappe/pull/40701x-refsource-misc
- https://github.com/frappe/frappe/commit/336c7d335db762b494acdfe43aea69d459fd51d7x-refsource-misc
- https://github.com/frappe/frappe/commit/d7460769f999c68d3121b680119f8724ddd3eb9dx-refsource-misc
- https://github.com/frappe/frappe/commit/eb9c1446cac13236c6d573b136786db2e46254fax-refsource-misc
- https://github.com/frappe/frappe/releases/tag/v15.114.0x-refsource-misc
- https://github.com/frappe/frappe/releases/tag/v16.26.0x-refsource-misc
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.