What is CVE-2026-102115?

CVE-2026-102115 is a critical-severity vulnerability in Kiteworks Core, classified under Weak Password Recovery Mechanism for Forgotten Password. CVSS score: 9.8/10. Published 2026-09-30.

How severe is CVE-2026-102115?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Vulnerability in Kiteworks Core

CVE-2026-102115

Kiteworks Core did not correctly validate a parameter submitted to the password reset workflow. An unauthenticated attacker who knew the email address of a user with a locally stored password could potentially reset that account's password without access to the emailed reset link and then authenticate as that user, including where the account holds administrative privileges.

Published 2026-09-30 · last modified 2026-10-01.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.005 (42.6th percentile), scored 2026-10-02.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 43rd percentile — 42.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

The 30-day trend appears once there are two daily scores.

Affected products

Kiteworks Core

Weakness classification (CWE)

CWE-640 — Weak Password Recovery Mechanism for Forgotten Password

References

9119a7d8-5eab-497f-8521-727c672e3725 (vendor-advisory)
9119a7d8-5eab-497f-8521-727c672e3725 (third-party-advisory)

Frequently asked questions

What is CVE-2026-102115?: CVE-2026-102115 is a critical-severity vulnerability in Kiteworks Core, classified under Weak Password Recovery Mechanism for Forgotten Password. CVSS score: 9.8/10. Published 2026-09-30.
How severe is CVE-2026-102115?: Critical severity. CVSS v3 base score is 9.8 out of 10.