What is CVE-2026-120953?

CVE-2026-120953 is a medium-severity vulnerability in MongoDB Atlas SQL Jdbc Driver, classified under URL Redirection to Untrusted Site (Open Redirect). CVSS score: 4.3/10. Published 2026-11-03.

How severe is CVE-2026-120953?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Open Redirect in MongoDB Atlas SQL Jdbc Driver

CVE-2026-120953

A URI redirection weakness exists in the authentication component of the Atlas SQL JDBC Driver. During an interactive sign-in flow the driver accepts endpoint addresses supplied by the remote endpoint it is pointed at without validating their scheme, and passes the resulting address to the local default protocol handler. An unauthenticated remote party that controls the endpoint a user elects to connect to may cause an address of its choosing to be opened on the user's system; user interaction is required.

Vulnerability class: Open Redirect

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

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/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

MongoDB Atlas SQL Jdbc Driver

Weakness classification (CWE)

CWE-601 — URL Redirection to Untrusted Site (Open Redirect)

References

Frequently asked questions

What is CVE-2026-120953?: CVE-2026-120953 is a medium-severity vulnerability in MongoDB Atlas SQL Jdbc Driver, classified under URL Redirection to Untrusted Site (Open Redirect). CVSS score: 4.3/10. Published 2026-11-03.
How severe is CVE-2026-120953?: Medium severity. CVSS v3 base score is 4.3 out of 10.