CVE-2026-29077
Published: 05 March 2026
Summary
CVE-2026-29077 is a high-severity Improper Access Control (CWE-284) vulnerability in Frappe Frappe. Its CVSS base score is 7.1 (High).
Operationally, exploitation aligns with the MITRE ATT&CK technique Exploitation for Privilege Escalation (T1068); ranked at the 21.5th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.
The strongest mitigations our analysis identified are NIST 800-53 AC-3 (Access Enforcement) and AC-6 (Least Privilege).
Deeper analysis
CVE-2026-29077 is a vulnerability in Frappe, a full-stack web application framework, stemming from a lack of validation when sharing documents. In versions prior to 15.98.0 and 14.100.0, a user could share a document with permissions that they themselves did not possess, enabling improper privilege escalation through document sharing. The issue is rated with a CVSS v3.1 base score of 7.1 (AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N) and is associated with CWE-284 (Improper Access Control) and CWE-602 (Client-Side Enforcement of Server-Side Security).
An authenticated user with low privileges can exploit this vulnerability remotely over the network with low complexity and no user interaction required. Successful exploitation allows the attacker to grant elevated permissions on documents to other users, resulting in high integrity impact by bypassing intended access controls, low confidentiality impact, and no availability disruption.
The Frappe security advisory at https://github.com/frappe/frappe/security/advisories/GHSA-5h4c-9p23-4c3m confirms the issue has been addressed in versions 15.98.0 and 14.100.0, recommending immediate upgrades to these patched releases for mitigation.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2026-9882
Vulnerability details
Frappe is a full-stack web application framework. Prior to versions 15.98.0 and 14.100.0, due to a lack of validation when sharing documents, a user could share a document with a permission that they themselves didn't have. This issue has been…
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patched in versions 15.98.0 and 14.100.0.
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
The vulnerability is a server-side access control bypass in a web framework that allows an authenticated low-privileged user to grant elevated document permissions they do not possess, directly enabling exploitation of a software flaw for privilege escalation (T1068).
CVEs Like This One
Affected Assets
Mitigating Controls
Mitigating Controls (NIST 800-53 r5) AI
Directly enforces server-side access control decisions on document sharing operations, preventing a user from granting permissions they do not possess.
Requires validation of all inputs (including permission parameters during document sharing) to reject requests that violate server-side policy.
Ensures privileges assigned via sharing cannot exceed those explicitly authorized for the sharing user, blocking the observed escalation path.