CVE-2026-85656 PUBLISHED

OS command injection in Amazon log4j-cve-2021-44228-hotpatch

Assigner: AMZN
Reserved: 04.09.2026 Published: 04.09.2026 Updated: 04.09.2026

An OS command injection issue in the log4j-cve-2021-44228-hotpatch package in Amazon Linux before 1.3-9 might allow a local user to execute arbitrary commands with root privileges via a Java process whose executable path contains embedded newline characters.

CVSS Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CVSS Score: 8.5

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Local	Confidentiality	High	Confidentiality	None
Attack Complexity	Low	Integrity	High	Integrity	None
Attack Requirements	None	Availability	High	Availability	None
Privileges Required	Low
User Interaction	None

CVSS 4.0

CVSS Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS Score: 7.8

Attack Vector	Local	Scope	Unchanged
Attack Complexity	Low	Confidentiality Impact	High
Privileges Required	Low	Integrity Impact	High
User Interaction	None	Availability Impact	High

CVSS 3.1

Product Status

Vendor	Amazon
Product	log4j-cve-2021-44228-hotpatch
Versions	Default: unaffected affected from 0 to 1.3-9.amzn2 (excl.)

References

Problem Types

CWE-78 Improper neutralization of special elements used in an OS command ('OS command injection') CWE

Impacts

CAPEC-248 Command Injection