๐Ÿ” CVE Alert

CVE-2026-78237

HIGH 7.8

Insufficient input validation in Admin By Request (ABR)

CVSS Score
7.8
EPSS Score
0.0%
EPSS Percentile
0th

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.

Vendor admin by request (abr)
Product admin by request (abr)
Published Aug 26, 2026
Last Updated Aug 26, 2026
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CVSS v3 Breakdown

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
Attack Vector
Local
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High

Affected Versions

Admin By Request (ABR) / Admin By Request (ABR)
5.2.2 and below

References

NVD โ†— CVE.org โ†— EPSS Data โ†—
csa.gov.sg: https://www.csa.gov.sg/alerts-and-advisories/alerts/al-2026-110/ docs.adminbyrequest.com: https://docs.adminbyrequest.com/security-advisories/abr-mac-26-02.htm