Sources: National Vulnerability Database, CVE.org, CISA KEV, FIRST EPSS
CVE-2026-126315 Overview
Frappe HRMS 16.14.0 before 16.20.1 sends product usage events on certain HR transactions without checking the site's telemetry setting, and some events include more detail than needed. During normal use, with no user action, values such as leave type names, claimed amounts and appraisal scores are transmitted even when telemetry is disabled.
Critical Impact
Affected Products
- Frappe HRMS: see the vendor advisory for the exact affected versions
Discovery Timeline
- 2026-11-13: CVE-2026-126315 published to the National Vulnerability Database by disclosure@vulncheck.com
- 2026-11-13: last updated in the NVD database
Technical Details for CVE-2026-126315
Vulnerability Analysis
CVE-2026-126315 is a Security Vulnerability weakness (CWE-359) in Frappe HRMS. Based on its CVSS vector, the flaw can be reached over the network, needs no login, and needs no user interaction.
With a CVSS base score of 9.3 and an EPSS exploitation probability of 0.55 percent, apply the vendor fix and confirm exposure on internet facing and business critical assets first.
Root Cause
The vendor description states: Frappe HRMS 16.14.0 before 16.20.1 sends product usage events on certain HR transactions without checking the site's telemetry setting, and some events include more detail than needed. During normal use, with no user action, values such as leave type names, claimed amounts and appraisal scores are transmitted even when telemetry is disabled.
Attack Vector
Based on the CVSS vector, the flaw can be reached over the network, needs no login, and needs no user interaction. Attack complexity is low complexity.
No exploitation in the wild is confirmed by CISA at the time of the last update. Check the references below for any vendor or researcher proof of concept.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Detection Methods for CVE-2026-126315
Detection Strategies
- Inventory every instance of Frappe HRMS and compare the running version with the affected range above.
- Check external attack surface scans for internet facing instances of the component.
- Run an authenticated vulnerability scan once your scanner ships a check for this CVE.
Monitoring Recommendations
- Forward Frappe HRMS application, access and audit logs to your SIEM for retrospective hunting.
- Alert on new processes, configuration changes or outbound connections from the affected service.
- Track the vendor advisory and the CISA KEV catalog for changes in exploitation status.
How to Mitigate CVE-2026-126315
Immediate Actions Required
- Apply the fixed version of Frappe HRMS named in the vendor advisory.
- Prioritize internet facing and business critical instances first.
- Rescan after the change to confirm the exposure is closed.
Patch Information
Use the fixed version listed in the vendor advisory for Frappe HRMS.
Workarounds
- If patching must wait, restrict network access to the affected service and place it behind authentication or a web application firewall rule.
CWE References
Technical References
This entry is built directly from NVD, CISA KEV and EPSS data. Verify fixed versions in the vendor advisory before you deploy.
Frequently asked questions
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