What is CVE-2023-32997?

CVE-2023-32997 is a high-severity vulnerability in Jenkins Cas, classified under Session Fixation. CVSS score: 8.8/10. Published 2023-05-16.

How severe is CVE-2023-32997?

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

Vulnerability in Jenkins Cas

CVE-2023-32997

Jenkins CAS Plugin 1.6.2 and earlier does not invalidate the previous session on login.

Published 2023-05-16 · last modified 2026-06-17.

CVSS v3 metric

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

EPSS exploit prediction

EPSS: 0.008 (54.7th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 55th percentile — 54.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000

Affected products

Jenkins Cas
Jenkins Project Cas Plugin — versions 0

Weakness classification (CWE)

CWE-384 — Session Fixation

References

www.jenkins.io/security/advisory/2023-05-16/ (vendor-advisory, Vendor Advisory)

Frequently asked questions

What is CVE-2023-32997?: CVE-2023-32997 is a high-severity vulnerability in Jenkins Cas, classified under Session Fixation. CVSS score: 8.8/10. Published 2023-05-16.
How severe is CVE-2023-32997?: High severity. CVSS v3 base score is 8.8 out of 10.