hoppscotch: Improper loopback redirect_uri validation in device-login flow_CVE-2026-34931

8.5 / 10

HIGH

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

Description

hoppscotch is an open source API development ecosystem. Prior to version 2026.3.0, there is an open redirect vulnerability that leads to token exfiltration. With these tokens, the attacker can sign in as the victim to takeover their account. This issue has been patched in version 2026.3.0.

Basic Information

ID CVE-2026-34931

Source GitHub_M

Published Apr 2, 2026 at 19:21

Modified Apr 6, 2026 at 14:07

Affected Product

Vendor hoppscotch

Product hoppscotch

Version < 2026.3.0

Affected Versions hoppscotch hoppscotch < 2026.3.0

CWE Classification

CWE-601

References

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    "published": "2026-04-02T19:21:35.136Z",
    "modified": "2026-04-06T14:07:20.977Z",
    "type": "cve",
    "title": "hoppscotch: Improper loopback redirect_uri validation in device-login flow",
    "source": "GitHub_M",
    "references": "https://github.com/hoppscotch/hoppscotch/security/advisories/GHSA-7fg7-wx5q-6m3v\nhttps://github.com/hoppscotch/hoppscotch/releases/tag/2026.3.0",
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