9.8

CVE-2021-31522: apache software foundation apache kylin Unsafe Reflection

CVSS: 9.8v3.1CriticalModified
AliasesGHSA-q656-g2x3-8cgh
Published 06-01-2022Last modified 03-08-2024
Open JSON

Vulnerability summary

CVE-2021-31522 is a critical (CVSS 9.8) Unsafe Reflection vulnerability in apache software foundation apache kylin. EPSS estimates a 2.90% chance of exploitation in the next 30 days, higher than 86.7% of scored vulnerabilities.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.8/10
010
Critical · v3.1 (NVD)
EPSS score
2.90%
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. 06-01-2022
    PublishedVulnerability first disclosed.
  2. 03-08-2024
    Last modifiedVulnerability information updated.

Description

Kylin can receive user input and load any class through Class.forName(...). This issue affects Apache Kylin 2 version 2.6.6 and prior versions; Apache Kylin 3 version 3.1.2 and prior versions; Apache Kylin 4 version 4.0.0 and prior versions.

CVSS metrics

2 scores · 1 source · 2 versions

EPSS trend

Probability

2.90%

Chance of exploitation in the next 30 days

Percentile

87%

Versus all other CVEs

30-day change

0.00 pp

From 2.90% on 18-09-2026

18-09-202618-10-2026
EPSS score
2.90%

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

Apache1 product
  • kylin≥ 2.0.0, ≤ 2.6.6 | ≥ 3.0.0, < 3.1.3 | 4.0.0 | 4.0.0:alpha | 4.0.0:beta
Apache software foundation1 product
  • apache kylin≥ Apache Kylin 2, ≤ 2.6.6 | ≥ Apache Kylin 3, ≤ 3.1.2 | ≥ Apache Kylin 4, ≤ 4.0.0
Org.apache.kylin1 product
  • kylin< 3.1.3 | ≥ 4.0.0, < 4.0.1

3 vendors · 3 products

References

6 links