What’s Vulnerable › Vulnerabilities

CVE-2021-21661

• Severity: medium (CVSS 4.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-06-10 · updated 2026-06-17

Description

Jenkins Kubernetes CLI Plugin 1.10.0 and earlier does not perform permission checks in several HTTP endpoints, allowing attackers with Overall/Read permission to enumerate credentials IDs of credentials stored in Jenkins.

Affected products

• Jenkins project Jenkins Kubernetes Plugin: through 1.10.0

References

• http://www.openwall.com/lists/oss-security/2021/06/10/14
• https://www.jenkins.io/security/advisory/2021-06-10/#SECURITY-2370
• http://www.openwall.com/lists/oss-security/2021/06/10/14
• https://www.jenkins.io/security/advisory/2021-06-10/#SECURITY-2370

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