CVE-2026-87886 PUBLISHED

Assigner: Acronis
Reserved: 09.09.2026 Published: 17.09.2026 Updated: 17.09.2026

Local privilege escalation due to insecure file permissions. The following products are affected: Acronis Backup plugin for cPanel & WHM (Linux) before build 1.9.3.1021, Acronis Backup extension for Plesk (Linux) before build 1.8.11.638, Acronis Backup plugin for DirectAdmin (Linux) before build 1.2.3.238.

Metrics

CVSS 3.0

CVSS Vector: CVSS:3.0/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 3.0

Product Status

Vendor	Acronis
Product	Acronis Backup plugin for cPanel & WHM
Versions	Default: unaffected affected from unspecified to 1.9.3.1021 (excl.)

Vendor	Acronis
Product	Acronis Backup extension for Plesk
Versions	Default: unaffected affected from unspecified to 1.8.11.638 (excl.)

Vendor	Acronis
Product	Acronis Backup plugin for DirectAdmin
Versions	Default: unaffected affected from unspecified to 1.2.3.238 (excl.)

References

SEC-10986

Problem Types

CWE-276 CWE