🛡️ CVE-2023-32997 — cas

🟠 CVSS 8.8 — High ✅ No Known Exploit CWE-384 NVD
8.8
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

Jenkins CAS Plugin Session Fixation vulnerability

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

This allows attackers to use social engineering techniques to gain administrator access to Jenkins.

CAS Plugin 1.6.3 invalidates the existing session on login.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs no privileges on the target. A user must be tricked into taking some action. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality high, integrity high, availability high.

Weakness class

CVE-2023-32997 is classified as CWE-384: Session Fixation. A session identifier is not renewed at login, so an identifier planted beforehand becomes an authenticated session.

Affected software

CVE-2023-32997 is recorded against 2 packages.

  • cas (fixed in 1.6.2)
  • org.jenkins-ci.plugins:cas-plugin (fixed in 1.6.3)

Timeline and source

Published on 16 May 2023 and last revised on 17 June 2026. No public exploit is currently recorded for this entry. Record sourced from NVD.

References

www.jenkins.io
www.jenkins.io

Details

Severity HIGH
CVSS Score 8.8
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CWE CWE-384
Public Exploit ✅ No
Source NVD
Published 2023-05-16
Updated 2026-08-12
Modified 2026-06-17
Fix URL N/A

Affected Packages

Software From version Fixed in
cas — 1.6.2
org.jenkins-ci.plugins:cas-plugin — 1.6.3

Similar Threats

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