Insufficient input validation in Admin By Request (ABR)
Priority LOW 35CWE-20Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- High
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA.
Summary
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.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00151 4th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Admin By Request (ABR) | Admin By Request (ABR) | up to 5.2.2 | — | No fix listed | CNA |
- Admin By Request (ABR) VendorAdmin By Request (ABR) Affected up to 5.2.2 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-78237
- 2026-10-03 Alias added: GHSA-9v6j-cr5f-p2gx
References
More Admin By Request (ABR) vulnerabilities
- TI-2026-54412 Insecure PIN derivation mechanism in Admin By Request (ABR) CVSS 3.1HIGH 8.8
Sources
- CVE-2026-78237 · CVE Program
- CVE-2026-78237 · NVD
- FIRST EPSS
- GHSA-9v6j-cr5f-p2gx · GitHub Advisory Database · CC BY 4.0
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