CVE-2026-78174
WatchGuard Dimension Session Hijack via Exposed Session Tokens in Diagnostic Logs
- State
- Published
- Severity
- 9.3 Critical
- Published
- Aug 27, 2026
- Updated
- Aug 28, 2026
- Reserved
- Aug 23, 2026
Description
WatchGuard Dimension records unredacted session identifiers for logged-in users in its web UI diagnostic log. A low-privileged Dimension Administrator can retrieve this log and extract a Super Administrator's session token while that administrator is logged in, enabling account takeover.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 9.3 Critical | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:H/SI:N/SA:N | WatchGuard |
Weaknesses
Affected Products
| Product | Versions |
|---|---|
DimensionWatchGuard |
|
References
- https://psirt.watchguard.com/CVE-2026-78174vendor-advisory
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