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
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.022 (82.0th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 82nd percentile — 82.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.022 · newest: 0.022 · change: 0.000
Affected products
- Jenkins Code Coverage API
- Jenkins Project Code Coverage API Plugin — versions unspecified
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.jenkins.io/security/advisory/2021-08-31/ (Vendor Advisory)
- www.openwall.com/lists/oss-security/2021/08/31/1 (mailing-list, 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.