What is CVE-2021-45379?

CVE-2021-45379 is a high-severity vulnerability in Glewlwyd Project, classified under Improper Authentication. CVSS score: 8.8/10. Published 2021-12-30.

How severe is CVE-2021-45379?

High severity. CVSS v3 base score is 8.8 out of 10.

Auth bypass in Glewlwyd Project

CVE-2021-45379

Glewlwyd 2.0.0, fixed in 2.6.1 is affected by an incorrect access control vulnerability. One user can attempt to log in as another user without its password.

Vulnerability class: Broken Authentication

Published 2021-12-30 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.010 (61.7th percentile), scored 2026-10-03.

Low probability of exploitation in the next 30 days, but still tracked. 62nd percentile — 61.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.010 · newest: 0.010 · change: 0.000

Affected products

Glewlwyd Project

Weakness classification (CWE)

CWE-287 — Improper Authentication

References

github.com/babelouest/glewlwyd/commit/125281f1c0d4b6a8b49f7e55a757205a2ef01fbe (Patch, Third Party Advisory)
github.com/babelouest/glewlwyd/releases/tag/v2.6.1 (Third Party Advisory, Release Notes)

Frequently asked questions

What is CVE-2021-45379?: CVE-2021-45379 is a high-severity vulnerability in Glewlwyd Project, classified under Improper Authentication. CVSS score: 8.8/10. Published 2021-12-30.
How severe is CVE-2021-45379?: High severity. CVSS v3 base score is 8.8 out of 10.