# Hoppscotch Backend vulnerabilities

Source: https://junglewise.ai/threats/technologies/backend-self-hosted  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Updated: 9 November 2026, 03:07 UTC. Rebuilt every hour.  
Data: https://junglewise.ai/threats/technologies/backend-self-hosted.json  
License: CC BY 4.0 with a link back

Junglewise Threat Intelligence has tracked 3 vulnerabilities in Hoppscotch Backend: 0 in the last 7 days and 0 in the last 90 days, 2 of them critical and 0 exploited in the wild. The most recent, CVE-2026-44478, was published on 13 May 2026.

## Counts

- Last 7 days: 0
- Last 30 days: 0
- Last 90 days: 0
- All time: 3 (2 critical, 0 exploited in the wild)

## About Hoppscotch Backend

The backend service for Hoppscotch, an open-source API development ecosystem.

## Latest Hoppscotch Backend vulnerabilities

- [CVE-2026-44478: Hoppscotch Backend information disclosure in onboarding config](https://junglewise.ai/threats/cve-2026-44478-hoppscotch-backend-information-disclosure-in-onboarding-config) (high, CVSS 7.5, published 13 May 2026)
- [CVE-2026-34932: Hoppscotch stored XSS in mock server responses](https://junglewise.ai/threats/cve-2026-34932-hoppscotch-stored-xss-in-mock-server-responses) (critical, CVSS 9.3, published 2 Apr 2026)
- [CVE-2026-34931: Hoppscotch open redirect and token exfiltration in device-login flow](https://junglewise.ai/threats/cve-2026-34931-hoppscotch-open-redirect-and-token-exfiltration-in-device-login) (critical, CVSS 9.6, published 2 Apr 2026)

## Most severe Hoppscotch Backend vulnerabilities

- [CVE-2026-34931: Hoppscotch open redirect and token exfiltration in device-login flow](https://junglewise.ai/threats/cve-2026-34931-hoppscotch-open-redirect-and-token-exfiltration-in-device-login) (critical, CVSS 9.6, published 2 Apr 2026)
- [CVE-2026-34932: Hoppscotch stored XSS in mock server responses](https://junglewise.ai/threats/cve-2026-34932-hoppscotch-stored-xss-in-mock-server-responses) (critical, CVSS 9.3, published 2 Apr 2026)
- [CVE-2026-44478: Hoppscotch Backend information disclosure in onboarding config](https://junglewise.ai/threats/cve-2026-44478-hoppscotch-backend-information-disclosure-in-onboarding-config) (high, CVSS 7.5, published 13 May 2026)

## Vulnerabilities per week

Nothing was published in the last eight weeks.

| Week of | Vulns | Critical | Exploited |
| --- | --- | --- | --- |
| 17 Aug 2026 | 0 | 0 | 0 |
| 24 Aug 2026 | 0 | 0 | 0 |
| 31 Aug 2026 | 0 | 0 | 0 |
| 7 Sep 2026 | 0 | 0 | 0 |
| 14 Sep 2026 | 0 | 0 | 0 |
| 21 Sep 2026 | 0 | 0 | 0 |
| 28 Sep 2026 | 0 | 0 | 0 |
| 5 Oct 2026 | 0 | 0 | 0 |
| 12 Oct 2026 | 0 | 0 | 0 |
| 19 Oct 2026 | 0 | 0 | 0 |
| 26 Oct 2026 | 0 | 0 | 0 |
| 2 Nov 2026 | 0 | 0 | 0 |
| 9 Nov 2026 | 0 | 0 | 0 |

## Other Hoppscotch technologies

- [Hoppscotch](https://junglewise.ai/threats/technologies/hoppscotch): 7 vulnerabilities

## Sources

NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories. Rebuilt every hour. Cite as: Junglewise Threat Intelligence, "Hoppscotch Backend vulnerabilities", https://junglewise.ai/threats/technologies/backend-self-hosted, 9 November 2026.