CVE-2026-59720: Hoppscotch: Insecure Default Configuration Allows Public Exposure of Private Collection Data via Mock Server

Severity: high (CVSS 7.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.6% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-07-09 · updated 2026-07-10
Weakness: CWE-200

Description

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.

Affected products

hoppscotch: before 2026.6.0

References

https://github.com/hoppscotch/hoppscotch/commit/e4332110d455a3012d5c77a9186bc4aa096e34f2
https://github.com/hoppscotch/hoppscotch/pull/6410
https://github.com/hoppscotch/hoppscotch/releases/tag/2026.6.0
https://github.com/hoppscotch/hoppscotch/security/advisories/GHSA-c68f-wr5p-j6jf
https://github.com/hoppscotch/hoppscotch/security/advisories/GHSA-c68f-wr5p-j6jf

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