hoppscotch: Open redirect via `/enter?redirect=`
Priority LOW 27CWE-601Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Spoofing
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-601.
Summary
hoppscotch is an open source API development ecosystem. Prior to version 2026.3.0, the /enter page contains a DOM-based open redirect vulnerability. The redirect query parameter is directly used to construct a URL and redirect the user without proper validation. This issue has been patched in version 2026.3.0.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00401 34th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed hoppscotch (hoppscotch): 2026.3.0
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- 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 2026.3.0 | 2026.3.0 | Patch available | CNA |
- hoppscotch Vendorhoppscotch Affected before 2026.3.0 Fixed in 2026.3.0 Patch available CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:hoppscotch:hoppscotch:*:*:*:*:*:*:*:* | before 2026.3.0 | Vulnerable | hoppscotch |
- cpe:2.3:a:hoppscotch:hoppscotch:*:*:*:*:*:*:*:* Versions before 2026.3.0 Vulnerable ·hoppscotch
Remediation
- Fix · CNA hoppscotch (hoppscotch) Fixed in 2026.3.0
Timeline
- 2026-10-02 Threatist record created from CVE-2026-34847
References
More Hoppscotch vulnerabilities
- 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-2026-22552 IDOR in GraphQL userCollection Query Exposes Other Users' Private Collections CVSS 3.1MEDIUM 6.5
- TI-2024-17953 Content spoofing - real Hoppscotch emails CVSS 3.1MEDIUM 5.4
Sources
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences