CVE-2026-82437EPSS p18.7%
CVE-2026-82437CVE-2026-82437
Description
Description
The Logviewer offers `logs.users` and `logs.groups` so operators can control who may read log content. For
daemon logs those settings were not applied: the access decision combined the "this is a daemon log" flag
with the authorizer result in a way that discarded the authorizer's answer whenever the flag was set, and
the daemon log page and download endpoints reached the handler without consulting an authorizer at all. Any
user able to pass the configured servlet filter could therefore read `nimbus.log`, `supervisor.log` and the
other daemon logs on every reachable node, which contain other tenants' topology names, owners and
configuration fragments.
The same advisory covers the log listing endpoints, which accepted a user argument and never applied it, so
`/listLogs` and `/searchLogs` returned every tenant's topology and worker log file names regardless of the
caller. That part is metadata only.
There was no configuration that closed either behaviour.
Mitigation
Upgra
Scoring
| CVSS | 4.3 () |
| Vector | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N |
| EPSS | 0.28% probability of exploitation · percentile 18.7% · 2026-10-05T12:00:23Z |
| Last modified | 2026-09-14 |