CVE-2026-46668 SpiceDB: Caveat structures with nested lists can result in improper cache reuse
Attackers can bypass permission checks in SpiceDB due to improper cache reuse when caveat structures contain nested lists.
- 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-2026-46668?
CVE-2026-46668 is a low-severity missing authorization vulnerability in authzed spicedb, published on 10 Jun 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
SpiceDB is an open source database system for creating and managing security-critical application permissions. From version 1.15.0 to before version 1.52.0, caveat structures with nested lists can result in improper cache reuse. This issue has been patched in version 1.52.0.
Weakness: CWE-285
Which versions are affected by CVE-2026-46668?
3 open source packages ship an affected version, including github.com/authzed/spicedb.
| Package | Affected | Fixed in |
|---|---|---|
github.com/authzed/spicedb Go | From 1.15.0 | 1.52.0 |
github.com/authzed/spicedb Go | From 1.15.0 | 1.52.0 |
github.com/authzed/spicedb Go | From 1.15.0 | 1.52.0 |
How do I fix CVE-2026-46668?
Upgrade github.com/authzed/spicedb to 1.52.0 or later.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-46668 being exploited?
There is no known exploitation of CVE-2026-46668 in the wild and no public exploit code.
Sources
Also known as GHSA-mqcf-gqvg-rmhm, GO-2026-5514.