Deserialization in Jenkins Code Coverage API
CVE-2021-21677
Jenkins Code Coverage API Plugin 1.4.0 and earlier does not apply Jenkins JEP-200 deserialization protection to Java objects it deserializes from disk, resulting in a remote code execution vulnerability.
Vulnerability class: Insecure Deserialization
EPSS: 0.022 (80.8th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Jenkins Code_coverage_api
- Jenkins Project Code Coverage Api Plugin — versions unspecified
Weakness classification (CWE)
Public proof-of-concept exploits
References
- jenkinsci-cert@googlegroups.com (x_refsource_CONFIRM, Vendor Advisory)
- jenkinsci-cert@googlegroups.com (mailing-list, x_refsource_MLIST, Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-21677?
- CVE-2021-21677 is a high-severity vulnerability in Jenkins Code Coverage API, classified under Deserialization of Untrusted Data. CVSS score: 8.8/10. Published 2021-08-31.
- How severe is CVE-2021-21677?
- High severity. CVSS v3 base score is 8.8 out of 10.
- Is CVE-2021-21677 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.