What is CVE-2026-40889?

CVE-2026-40889 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-2026-40889?

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

Vulnerability in Frappe Hr

CVE-2026-40889

Frappe HR is an open-source human resources management solution (HRMS). Prior to versions 15.58.2 and 16.4.2, authenticated users can access unauthorized files by exploiting certain api endpoint. Versions 15.58.2 and 16.4.2 contain a patch. No known workarounds are available.

Published 2026-04-21 · last modified 2026-10-26.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.002 (14.0th percentile), scored 2026-11-02.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 14th percentile — 14.0% 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 < 16.4.2, < 15.58.2

Weakness classification (CWE)

CWE-284 — Improper Access Control

References

github.com/frappe/hrms/security/advisories/GHSA-6cg5-4q6m-vrgm (Vendor Advisory)
github.com/frappe/hrms/releases/tag/v15.58.2 (Release Notes)
github.com/frappe/hrms/releases/tag/v16.4.2 (Release Notes)

Frequently asked questions

What is CVE-2026-40889?: CVE-2026-40889 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-2026-40889?: Medium severity. CVSS v3 base score is 6.5 out of 10.