CVE-2020-2102
MEDIUMCVSS 5.3/10EPSS 1.40%
Last modified
CVE-2020-2102 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. Jenkins 2.218 and earlier, LTS 2.204.1 and earlier used a non-constant time comparison function when validating an HMAC.. EPSS estimates a 1.40% chance of exploitation in the next 30 days.
Description
Jenkins 2.218 and earlier, LTS 2.204.1 and earlier used a non-constant time comparison function when validating an HMAC.
Metrics
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Jenkins | Jenkins | <= 2.204.1 |
| Jenkins | Jenkins | <= 2.218 |
References
- http://www.openwall.com/lists/oss-security/2020/01/29/1Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2020/01/29/1Mailing List, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2020-2102?
Jenkins 2.218 and earlier, LTS 2.204.1 and earlier used a non-constant time comparison function when validating an HMAC.
How severe is CVE-2020-2102?
CVE-2020-2102 has a CVSS score of 5.3/10 (MEDIUM severity). The EPSS model estimates a 1.40% probability of exploitation in the next 30 days.
How do I fix CVE-2020-2102?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
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Are you affected by CVE-2020-2102?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST