Read the docs
TI-2026-42590 Aliases CVE-2026-59720

Hoppscotch: Insecure Default Configuration Allows Public Exposure of Private Collection Data via Mock Server

Priority HIGH 72CWE-200Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Information disclosure, 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-200 and CWE-284.

Summary

Hoppscotch is an open source API development ecosystem. Prior to 2026.6.0, mock server creation in mock-server.service.ts does not persist the isPublic input field while schema.prisma defaults isPublic to true, causing mock servers linked to private collections to be publicly accessible without authentication and potentially expose sensitive API data. This issue is fixed in version 2026.6.0.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00593 48th percentileScored 2026-11-07
Fix Fixed hoppscotch (hoppscotch): 2026.6.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
Yes
Technical impact
Partial

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

Affected products

VendorProductAffected versionsFixed inStatusSource
hoppscotchhoppscotchbefore 2026.6.02026.6.0Patch availableCNA
  • hoppscotch Vendorhoppscotch Affected before 2026.6.0 Fixed in 2026.6.0 Patch available CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPEVersionsRoleVendor
cpe:2.3:a:hoppscotch:hoppscotch:*:*:*:*:*:*:*:*——hoppscotch
  • cpe:2.3:a:hoppscotch:hoppscotch:*:*:*:*:*:*:*:* Versions — — ·hoppscotch

Remediation

  • Fix · CNA hoppscotch (hoppscotch) Fixed in 2026.6.0

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-59720

References

Other 4

  • 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-2026-32417 hoppscotch: Unauthenticated Onboarding Config Disclosure via Empty Recovery Token CVSS 3.1HIGH 7.5
  • TI-2026-27155 hoppscotch: Improper loopback redirect_uri validation in device-login flow CVSS 4.0HIGH 8.5
  • TI-2024-22688 @hoppscotch/cli affected by Sandbox Escape in @hoppscotch/js-sandbox leads to RCE CVSS 3.1HIGH 8.4
  • TI-2026-22551 hoppscotch has IDOR in updateUserEnvironment / deleteUserEnvironment CVSS 3.1HIGH 8.3
See all 17 →

Sources

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