What’s Vulnerable › Vulnerabilities

CVE-2018-1999043

• Severity: high (CVSS 7.5 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.7% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2018-08-23 · updated 2026-06-17
• Weakness: CWE-772

Description

A denial of service vulnerability exists in Jenkins 2.137 and earlier, 2.121.2 and earlier in BasicAuthenticationFilter.java, BasicHeaderApiTokenAuthenticator.java that allows attackers to create ephemeral in-memory user records by attempting to log in using invalid credentials.

Affected products

• Jenkins: through 2.121.2; through 2.137

References

• https://jenkins.io/security/advisory/2018-08-15/#SECURITY-672
• https://jenkins.io/security/advisory/2018-08-15/#SECURITY-672

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