CVE-2026-96627 Arcane: Delegated users:update permission allows admin account takeover via password reset (no privilege-hierarchy check)
A user with delegated update permissions can reset the global administrator's password, leading to complete account takeover and privilege escalation.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-96627?
CVE-2026-96627 is a high-severity vulnerability in getarcaneapp arcane, published on 16 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Arcane is an interface for managing Docker containers, images, networks, and volumes. Prior to 2.6.0, UpdateUser in backend/api/handlers/users.go sets PasswordHash for any target without comparing caller and target privilege. A holder of delegated users:update permission can submit a password change for the global administrator, replace the administrator password, and authenticate as that account, resulting in complete global administrator account takeover. This issue is fixed in version 2.6.0.
Which versions are affected by CVE-2026-96627?
4 open source packages ship an affected version, including github.com/getarcaneapp/arcane/backend/v2 and github.com/getarcaneapp/arcane/backend.
| Package | Affected | Fixed in |
|---|---|---|
github.com/getarcaneapp/arcane/backend/v2 Go | All versions | 2.6.0 |
github.com/getarcaneapp/arcane/backend/v2 Go | All versions | 2.6.0 |
github.com/getarcaneapp/arcane/backend/v2 Go | All versions | 2.6.0 |
github.com/getarcaneapp/arcane/backend Go | All versions | None |
How do I fix CVE-2026-96627?
Upgrade github.com/getarcaneapp/arcane/backend/v2 to 2.6.0 or later.
Is CVE-2026-96627 being exploited?
There is no known exploitation of CVE-2026-96627 in the wild and no public exploit code.
Sources
Also known as GHSA-pw5q-rjx4-7f7p, GO-2026-6807.