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Fencer Vulns
high 8.8

CVE-2020-1956 kev in the critical feed json

Command Injection in Kylin

published 2020-05-22 6 y ago modified 2026-06-17 4 mo ago also GHSA-gprm-xqrc-c2j3 , EUVD-2020-0557

cvss
8.8
version 3.1, CNA
cisa kev
Exploited
added 2022-03-25
epss
97.4%
EPSS 97.4% chance of exploitation in 30 days, percentile 99.8%
public exploits
0
none known, plus a Nuclei check

Summary

Apache Kylin 2.3.0, and releases up to 2.6.5 and 3.0.1 has some restful apis which will concatenate os command with the user input string, a user is likely to be able to execute any os command without any protection or validation.

Patch / fix

cisa required action Apply updates per vendor instructions.

  • maven org.apache.kylin:kylin-core-common 2.6.6, 3.0.2

Timeline

  1. Published
  2. Added to CISA KEV
  3. CISA patch deadline
  4. CISA SSVC: exploitation active

Known exploited

Added
4 y ago
Patch by
2022-04-15 (4 y ago)
Ransomware
Not known
Required action
Apply updates per vendor instructions.
Vendor, product
Apache, Kylin
CISA name
Apache Kylin OS Command Injection Vulnerability

CISA SSVC

Exploitation
Active, exploited in the wild
Automatable
no
Technical impact
total
Assessed
21 mo ago

Exploit prediction

97.39% chance of exploitation in the next 30 days, higher than 99.8% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • Nuclei template Apache Kylin 3.0.1 - Command Injection Vulnerability nuclei detection template
  • community.sonarsource.com https://community.sonarsource.com/t/apache-kylin-3-0-1-command-injection-vulnerability/25706 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CISA ADP 3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD 3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CNA 3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 9.0 AV:N/AC:L/Au:S/C:C/I:C/A:C
GitHub 3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:H

Affected packages

ecosystem package affected fixed in
maven org.apache.kylin:kylin-core-common
<2.6.6
>=3.0.0, <3.0.2
2.6.6
3.0.2

Affected products

  • Apache Kylin

Classification

Weakness
  • CWE-78 Improper Neutralization of Special Elements used in an OS Command

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.