What is CVE-2023-40545?

CVE-2023-40545 is a high-severity vulnerability in Ping Identity Pingfederate, classified under Missing Authentication for Critical Function. CVSS score: 8.8/10. Published 2024-02-06.

How severe is CVE-2023-40545?

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

Auth bypass in Ping Identity Pingfederate

CVE-2023-40545

Authentication bypass when an OAuth2 Client is using client_secret_jwt as its authentication method on affected 11.3 versions via specially crafted requests.

Vulnerability class: Broken Authentication

Published 2024-02-06 · 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: 0.009 (59.2th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 59th percentile — 59.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: 0.000

Affected products

Ping Identity Pingfederate — versions 11.3.0
Pingidentity Pingfederate — versions 11.3.0

Weakness classification (CWE)

CWE-306 — Missing Authentication for Critical Function

References

support.pingidentity.com/s/article/SECADV040-PingFederate-OAuth-Client-Authenti… (Permissions Required)
www.pingidentity.com/en/resources/downloads/pingfederate/previous-releases.html (Release Notes)
docs.pingidentity.com/r/en-us/pingfederate-113/hro1701116403236 (Release Notes)

Frequently asked questions

What is CVE-2023-40545?: CVE-2023-40545 is a high-severity vulnerability in Ping Identity Pingfederate, classified under Missing Authentication for Critical Function. CVSS score: 8.8/10. Published 2024-02-06.
How severe is CVE-2023-40545?: High severity. CVSS v3 base score is 8.8 out of 10.