What’s Vulnerable › Vulnerabilities

CVE-2022-0538

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 3.9% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2022-02-09 · updated 2026-06-17
• Weakness: CWE-502

Description

Jenkins 2.333 and earlier, LTS 2.319.2 and earlier defines custom XStream converters that have not been updated to apply the protections for the vulnerability CVE-2021-43859 and allow unconstrained resource usage.

Affected products

• Jenkins: before 2.319.3; before 2.334 — fixed in 2.319.3, 2.334

How to fix

Upgrade to a fixed version: Jenkins 2.319.3, 2.334. Check the vendor advisory for mitigations.

References

• http://www.openwall.com/lists/oss-security/2022/02/09/1
• https://www.jenkins.io/security/advisory/2022-02-09/#SECURITY-2602
• http://www.openwall.com/lists/oss-security/2022/02/09/1
• https://www.jenkins.io/security/advisory/2022-02-09/#SECURITY-2602

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