TI-2026-22552 Aliases CVE-2026-28217

IDOR in GraphQL userCollection Query Exposes Other Users' Private Collections

MEDIUM 62CWE-862Published 2026-02-26 · Updated 2026-02-27

Key facts

Attack vector: Network
Privileges required: Low
User interaction: None
Attack complexity: Low
Impact type: Security bypass
Confidentiality · integrity · availability: High · None · None
Fix status: Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-862.

Summary

hoppscotch is an open source API development ecosystem. Prior to version 2026.2.0, the `userCollection` GraphQL query accepts an arbitrary collection ID and returns the full collection data — including title, type, and the serialized `data` field containing HTTP requests with headers and potentially secrets — to any authenticated user, without verifying that the requesting user owns the collection. This is an Insecure Direct Object Reference (IDOR) caused by a missing authorization check that exists on every other operation in the same resolver. Version 2026.2.0 fixes the issue.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV

EPSS 0.00415 36th percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by NVD

Fix Fixed hoppscotch (hoppscotch): 2026.2.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: Poc
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
hoppscotch	hoppscotch	before 2026.2.0	2026.2.0	Patch available	CNA

hoppscotch Vendorhoppscotch Affected before 2026.2.0 Fixed in 2026.2.0 Patch available CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:hoppscotch:hoppscotch::::::::	before 2026.2.0	Vulnerable	hoppscotch

cpe:2.3:a:hoppscotch:hoppscotch:*:*:*:*:*:*:*:* Versions before 2026.2.0 Vulnerable ·hoppscotch

Remediation

Fix · CNA hoppscotch (hoppscotch) Fixed in 2026.2.0

Timeline

2026-10-02 Threatist record created from CVE-2026-28217

References

Exploit 1

https://github.com/hoppscotch/hoppscotch/security/advisories/GHSA-m5pg-r4jp-qq75

Other 1

https://github.com/hoppscotch/hoppscotch/releases/tag/2026.2.0

TI-2026-36924 Mass Assignment via Onboarding Endpoint Allows Unauthenticated JWT_SECRET Overwrite CVSS 3.1CRITICAL 10.0
TI-2023-16943 Database password exposed in logs in hoppscotch CVSS 3.1HIGH 8.8
TI-2026-27155 hoppscotch: Improper loopback redirect_uri validation in device-login flow CVSS 4.0HIGH 8.5
TI-2026-22551 hoppscotch has IDOR in updateUserEnvironment / deleteUserEnvironment CVSS 3.1HIGH 8.3
TI-2024-17953 Content spoofing - real Hoppscotch emails CVSS 3.1MEDIUM 5.4
TI-2026-22550 hoppscotch Vulnerable to Unauthenticated Onboarding Config Takeover CVSS 3.1CRITICAL 9.1

See all 11 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences