CVE-2026-50160

CVE Enrichment

CVSS: 10.0 CRITICAL
EPSS: 1.70%
EPSS Percentile: 77.16%
CISA KEV: Not listed

Description

Hoppscotch is an API development ecosystem. In self-hosted deployments of hoppscotch-backend from version 2026.4.1 and earlier, the unauthenticated POST /v1/onboarding/config endpoint is vulnerable to mass assignment. The global NestJS ValidationPipe is configured without whitelist: true, so extra properties on the request body that are not declared in SaveOnboardingConfigRequest are not stripped and are iterated in the service layer as if they were legitimate InfraConfig entries. Because keys such as JWT_SECRET and SESSION_SECRET are valid InfraConfigEnum values and are not explicitly rejected during validation, an unauthenticated attacker who can reach a fresh instance before onboarding completes (or when no users exist) can overwrite these values in the database. Overwriting JWT_SECRET gives the attacker control of the JWT signing key, allowing them to forge tokens for any user, including administrators, and results in full server compromise. The issue is fixed in hoppscotch 2026.5.0.

Technical Details

CVSS Version: 3.1
CNA / NVD Source: [email protected]
Published: 02-Jul-2026 02:16
Last Modified: 03-Jul-2026 02:45
EPSS Date: 2026-10-29
CWE: CWE-915

CVSS Vector


            CVSS:3.1                            AV:N /
                            AC:L /
                            PR:N /
                            UI:N /
                            S:C /
                            C:H /
                            I:H /
                            A:N

Affected Products / Versions

hoppscotch / hoppscotch
Version / affected range: * · before (exclusive) 2026.5.0
cpe:2.3:a:hoppscotch:hoppscotch:*:*:*:*:*:*:*:*

References

Last enrichment sync: 30-Oct-2026 11:22
Sources: NVD · FIRST EPSS · CISA KEV
Latest successful provider update; providers refresh independently.

Reported Context (1)

A critical security flaw has been disclosed in self-hosted versions of Hoppscotch(CVE-2026-50160, CVSS score: 10.0), an open source API platform, that can result in complete compromise. ThreatsDay Roundup: Smart TV Proxyware, curl and Hoppscotch Flaws, and Malware Campaigns

CVE (1)

Malware (8)

People (2)

Threat Actors (9)

Vendors (9)

Products (8)

Industries (2)

Countries (4)

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