What is CVE-2026-40888?

CVE-2026-40888 is a medium-severity vulnerability in Frappe Hr, classified under Improper Access Control. CVSS score: 6.5/10. Published 2026-04-21.

How severe is CVE-2026-40888?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Vulnerability in Frappe Hr

CVE-2026-40888

Frappe HR is an open-source human resources management solution (HRMS). Prior to versions 15.58.1 and 16.4.1, an authenticated user with default role can access unauthorized information by exploiting certain api endpoint. Versions 15.58.1 and 16.4.1 contain a patch. No known workarounds are available.

Published 2026-04-21 · last modified 2026-10-25.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.002 (14.1th percentile), scored 2026-11-02.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 14th percentile — 14.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.002 · change: -0.002

Affected products

Frappe Hr
Frappe Hrms — versions < 15.58.1, < 16.4.1

Weakness classification (CWE)

CWE-284 — Improper Access Control

References

github.com/frappe/hrms/security/advisories/GHSA-4375-7rxj-9hfx (Vendor Advisory)
github.com/frappe/hrms/releases/tag/v15.58.1 (Release Notes)
github.com/frappe/hrms/releases/tag/v16.4.1 (Release Notes)

Frequently asked questions

What is CVE-2026-40888?: CVE-2026-40888 is a medium-severity vulnerability in Frappe Hr, classified under Improper Access Control. CVSS score: 6.5/10. Published 2026-04-21.
How severe is CVE-2026-40888?: Medium severity. CVSS v3 base score is 6.5 out of 10.