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CVE-2026-78237

Insufficient input validation in Admin By Request (ABR)

HIGH
7.8
CVSS Score
Published: August 26, 2026 at 07:24 AM UTC
Updated: September 3, 2026 at 05:14 PM UTC
1 product affected across 1 vendorAdmin by Request

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Severity
HIGH7.8
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (2)

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

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.8HIGHCSA
Attack Vector
LOCAL
Complexity
HIGH
Privileges
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-20

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