What’s Vulnerable › Vulnerabilities

CVE-2021-21647

• Severity: medium (CVSS 4.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-04-21 · updated 2026-06-17

Description

Jenkins CloudBees CD Plugin 1.1.21 and earlier does not perform a permission check in an HTTP endpoint, allowing attackers with Item/Read permission to schedule builds of projects without having Item/Build permission.

Affected products

• Jenkins Project Jenkins CloudBees CD Plugin: through 1.1.21

References

• http://www.openwall.com/lists/oss-security/2021/04/21/2
• https://www.jenkins.io/security/advisory/2021-04-21/#SECURITY-2309
• http://www.openwall.com/lists/oss-security/2021/04/21/2
• https://www.jenkins.io/security/advisory/2021-04-21/#SECURITY-2309

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