What’s Vulnerable › Vulnerabilities

CVE-2023-40343

• Severity: medium (CVSS 5.9 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-08-16 · updated 2026-06-17
• Weakness: CWE-203

Description

Jenkins Tuleap Authentication Plugin 1.1.20 and earlier uses a non-constant time comparison function when validating an authentication token allowing attackers to use statistical methods to obtain a valid authentication token.

Affected products

• Jenkins Project Jenkins Tuleap Authentication Plugin: through 1.1.20

References

• http://www.openwall.com/lists/oss-security/2023/08/16/3
• https://www.jenkins.io/security/advisory/2023-08-16/#SECURITY-3229
• http://www.openwall.com/lists/oss-security/2023/08/16/3
• https://www.jenkins.io/security/advisory/2023-08-16/#SECURITY-3229

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