CVE-2026-78237

high

Description

Insufficient input validation in ABR allows a low-privileged user to inject malicious entries into the sudoers file, resulting in persistent root access that remained effective after the ABR session ended.

References

https://www.csa.gov.sg/alerts-and-advisories/alerts/al-2026-110/

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-66332

https://docs.adminbyrequest.com/security-advisories/abr-mac-26-02.htm

Details

Source: Mitre, NVD

Published: 2026-08-26

Updated: 2026-09-03

Risk Information

CVSS v2

Base Score: 6

Vector: CVSS2#AV:L/AC:H/Au:S/C:C/I:C/A:C

Severity: Medium

CVSS v3

Base Score: 7.8

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

Severity: High

EPSS

EPSS: 0.00151