What is CVE-2026-121454?

CVE-2026-121454 is a low-severity vulnerability in Padloc, classified under Missing Authentication for Critical Function. CVSS score: 3.7/10. Published 2026-11-03.

How severe is CVE-2026-121454?

Low severity. CVSS v3 base score is 3.7 out of 10.

Auth bypass in Padloc

CVE-2026-121454

Padloc through 4.3.0 contains a missing authentication vulnerability in ScimServer._handleScimGet() that allows unauthenticated attackers to read SCIM directories by sending any non-empty bearer token. Attackers who know an organization id can query the Users and Groups SCIM endpoints to retrieve provisioned usernames, emails, names, externalIds, and group memberships.

Vulnerability class: Broken Authentication

Published 2026-11-03 · last modified 2026-11-03.

CVSS v3 metric

CVSS v3 base score 3.7 (Low). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Padloc

Weakness classification (CWE)

CWE-306 — Missing Authentication for Critical Function

References

github.com/padloc/padloc/issues/795 (issue-tracking)
github.com/padloc/padloc (product)
github.com/padloc/padloc/commit/90dda7c6f417b28bee86ec60eff532eb18870125 (patch)
github.com/padloc/padloc/blob/v4.3.0/packages/server/src/scim.ts (technical-description)
www.vulncheck.com/advisories/padloc-through-4.3.0-missing-scim-token-validation… (third-party-advisory)

Frequently asked questions

What is CVE-2026-121454?: CVE-2026-121454 is a low-severity vulnerability in Padloc, classified under Missing Authentication for Critical Function. CVSS score: 3.7/10. Published 2026-11-03.
How severe is CVE-2026-121454?: Low severity. CVSS v3 base score is 3.7 out of 10.