PHP2Shell core RCE vulnerability patches (CVE-2026-109618 and CVE-2026-109619)
FG-IR-26-186
Summary
CVSSv3 Score:
9.8
An Inclusion of Sensitive Information in Source Code vulnerability [CWE-540] in FortiMonitorOnSight web portal may allow a remote unauthenticated attacker to bypass authentication via forged or reused JWT
Revised on 2026-09-08 00:00:00
Products covered
FortiMonitorOnSight
Remediation
Separate remediation guidance was not included in the collected bulletin.
CVEs in this advisory 1
Update history
What changed in later vendor updates
SecurityAlert records field-level changes from the point we begin following a bulletin. Earlier vendor changes may not have a field-by-field record.
- The vendor changed the advisory summary.
- CVSS changed from 9.6 to 9.8.
- Added CVEs: CVE-2026-84390.
Updates
- Published by Fortinet
The publication date reported by the vendor.
- Added to SecurityAlert
We collected the advisory from the official source.
- Confirmed at the source
Our collector saw this advisory during a later source check.