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Vulnerability record · CVE-2026-78237 · published 26 August 2026

CVE-2026-78237: Improper input validation vulnerability

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.

7.8 CVSS 3.1 High EPSS 0.15% · top 96.4% CWE-20 · Improper input validation Deferred
7.8CVSS 3.1 base score
0.15%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
2References
3 Sep 2026Last modified by NVD

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.

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

References

LinkTags
https://docs.adminbyrequest.com/security-advisories/abr-mac-26-02.htm
https://www.csa.gov.sg/alerts-and-advisories/alerts/al-2026-110/

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Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2026-78237), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.