What’s Vulnerable › Vulnerabilities

CVE-2012-0785

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 3.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2020-02-24 · updated 2026-06-16
• Weakness: CWE-400

Description

Hash collision attack vulnerability in Jenkins before 1.447, Jenkins LTS before 1.424.2, and Jenkins Enterprise by CloudBees 1.424.x before 1.424.2.1 and 1.400.x before 1.400.0.11 could allow remote attackers to cause a considerable CPU load, aka "the Hash DoS attack."

Affected products

• CloudBees Jenkins: from 1.400.0 before 1.400.0.11; from 1.424.0 before 1.424.2.1 — fixed in 1.400.0.11, 1.424.2.1
• Jenkins: before 1.424.2; before 1.447 — fixed in 1.424.2, 1.447

How to fix

Upgrade to a fixed version: CloudBees Jenkins 1.400.0.11, 1.424.2.1; Jenkins 1.424.2, 1.447. Check the vendor advisory for mitigations.

References

• http://www.openwall.com/lists/oss-security/2012/01/20/8
• https://access.redhat.com/security/cve/cve-2012-0785
• https://jenkins.io/security/advisory/2012-01-12/
• https://security-tracker.debian.org/tracker/CVE-2012-0785
• https://www.cloudbees.com/jenkins-security-advisory-2012-01-12
• http://www.openwall.com/lists/oss-security/2012/01/20/8
• https://access.redhat.com/security/cve/cve-2012-0785
• https://jenkins.io/security/advisory/2012-01-12/
• https://security-tracker.debian.org/tracker/CVE-2012-0785
• https://www.cloudbees.com/jenkins-security-advisory-2012-01-12

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