What’s Vulnerable › Vulnerabilities

CVE-2024-23898

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 67.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-01-24 · updated 2026-06-17
• Weakness: CWE-346

Description

Jenkins 2.217 through 2.441 (both inclusive), LTS 2.222.1 through 2.426.2 (both inclusive) does not perform origin validation of requests made through the CLI WebSocket endpoint, resulting in a cross-site WebSocket hijacking (CSWSH) vulnerability, allowing attackers to execute CLI commands on the Jenkins controller.

Affected products

• Jenkins: from 2.217 through 2.441; from 2.222.1 through 2.426.2

References

• http://www.openwall.com/lists/oss-security/2024/01/24/6
• https://www.jenkins.io/security/advisory/2024-01-24/#SECURITY-3315
• https://www.sonarsource.com/blog/excessive-expansion-uncovering-critical-security-vulnerabilities-in-jenkins/
• http://www.openwall.com/lists/oss-security/2024/01/24/6
• https://www.jenkins.io/security/advisory/2024-01-24/#SECURITY-3315
• https://www.sonarsource.com/blog/excessive-expansion-uncovering-critical-security-vulnerabilities-in-jenkins/

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