8.8

CVE-2021-21677: jenkins project jenkins code coverage api plugin Deserialization of Untrusted Data

CVSS: 8.8v3.1HighModified
AliasesGHSA-58pr-hprx-7hg6
Published 31-08-2021Last modified 03-08-2024
Open JSON

Vulnerability summary

CVE-2021-21677 is a high (CVSS 8.8) Deserialization of Untrusted Data vulnerability in jenkins project jenkins code coverage api plugin. EPSS estimates a 2.21% chance of exploitation in the next 30 days, higher than 82.4% of scored vulnerabilities.

Overall risk
36/100
0100
Medium · default modelHow is this calculated?
CVSS score
8.8/10
010
High · v3.1 (NVD)
EPSS score
2.21%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 31-08-2021
    PublishedVulnerability first disclosed.
  2. 03-08-2024
    Last modifiedVulnerability information updated.

Description

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.

CVSS metrics

3 scores · 2 sources · 2 versions

EPSS trend

Probability

2.21%

Chance of exploitation in the next 30 days

Percentile

82%

Versus all other CVEs

30-day change

0.00 pp

From 2.21% on 21-09-2026

21-09-202621-10-2026
EPSS score
2.21%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Io.jenkins.plugins1 product
  • code-coverage-api< 1.4.1
Jenkins1 product
Jenkins project1 product

3 vendors · 3 products

References

5 links