CVE-2026-85656CWE-78command-injection

CVE-2026-85656

High · published September 4, 2026

CVSS v3.1
7.8
EPSS
1%
Percentile
64.9
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
7.8 · HIGH
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
8.5 · 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
EPSS
0.01081 · 64.9th percentile
Weakness
CWE-78 · Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Published
2026-09-04T22:18Z
References (2)
https://alas.aws.amazon.com/AL2/ALAS2-2026-3784.html · ff89ba41-3aa1-4d27-914a-91399e9639e5https://aws.amazon.com/security/security-bulletins/2026-098-aws/ · ff89ba41-3aa1-4d27-914a-91399e9639e5
EPSS history
Timeline
  • 06 SEP 03:33Z
    EPSS moved — → 1%
    epss
  • 04 SEP 17:33Z
    OS command injection in Amazon log4j-cve-2021-44228-hotpatch
    cvelistv5