Hash collision attack vulnerability in Jenkins
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 software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Java / Kotlin (Maven) | org.jenkins-ci.main:jenkins-core | >= 1.425, < 1.447, < 1.424.2 | 1.447, 1.424.2 |
References
- https://nvd.nist.gov/vuln/detail/CVE-2012-0785
- 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
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H- Weakness (CWE)
-- Platform
- Java / Kotlin (Maven)
- Package
org.jenkins-ci.main:jenkins-core- Disclosed
- 23.04.2022
- Updated
- 11.10.2026 12:21
Sources and licenses
OSV / GitHub Advisory Database - GHSA-pchp-c5w8-47gc - CC BY 4.0
Vulnerability history: org.jenkins-ci.main:jenkins-core
All published vulnerabilities of this package (Java / Kotlin (Maven)), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 259
- First → latest
- 01.2022 06.2026
- Without a fix
- 1
- Exploited in attacks
- 4
Severity breakdown
- Critical 19
- High 62
- Medium 158
- Low 20
Disclosures per year
- 2022: 213
- 2023: 14
- 2024: 6
- 2025: 14
- 2026: 12
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Hash collision attack vulnerability in Jenkins this entry
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