CVE-2026-34847
Mediumhoppscotch: Open redirect via /enter?redirect=
Published Apr 2, 2026 · Updated Aug 12, 2026 · Also known as GHSA-27pm-c9ch-746q
Key Facts
Routine patching- CVE-2026-34847 is a medium-severity vulnerability (CVSS 6.1 v3.1) affecting Hoppscotch.
- It is not listed in any known-exploited vulnerabilities catalog. No public exploit code is known.
- EPSS estimates a 0.5% probability of exploitation in the next 30 days.
- Fixed versions are available, including Hoppscotch 2026.3.0.
- Brandefense priority: routine patching, as no exploitation is known and its severity is moderate or low.
CVSS v3.1
6.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
EPSS (30-day exploit likelihood)
0.5%
Higher than 38.1% of all scored CVEs
Exploited in the wild
No known
Not in a known-exploited catalog
Public exploit code
None known
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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.
Affected Products
2 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| HoppscotchHoppscotch | >= < 2026.3.0 | 2026.3.0 |
Patched Releases
Hoppscotch
2026.3.0
Timeline
Publicly disclosed
Apr 2, 2026
Last updated
Aug 12, 2026
Weakness Type
- CWE-601 URL Redirection to Untrusted Site ('Open Redirect')
References
- advisoryhttps://github.com/CVEProject/cvelistV5/tree/main/cves/2026/34xxx/CVE-2026-34847.json
- advisoryhttps://nvd.nist.gov/vuln/detail/CVE-2026-34847
- otherhttps://github.com/hoppscotch/hoppscotch/releases/tag/2026.3.0
- otherhttps://github.com/hoppscotch/hoppscotch/security/advisories/GHSA-27pm-c9ch-746q
FAQ
Common Questions.
hoppscotch is an open source API development ecosystem.
Affected: Hoppscotch versions >= < 2026.3.0. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
No public exploit code is known.
Fixed versions are available, including Hoppscotch 2026.3.0.
Brandefense priority: routine patching, as no exploitation is known and its severity is moderate or low.
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