Is CVE-2026-28217 actively exploited?

No active exploitation of CVE-2026-28217 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-28217 be exploited remotely?

Yes. CVE-2026-28217 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-28217?

CVE-2026-28217 has a CVSS score of 6.5 (MEDIUM).

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MEDIUM

CVE-2026-28217

CWE-862Published: February 26, 2026· Updated: Feb 27, 2026

6.5

CVSS v3.1

EPSS:0.03%probability of exploitation in 30 daysPercentile:8.8th

Official Description

hoppscotch is an open source API development ecosystem. Prior to version 2026.2.0, the `userCollection` GraphQL query accepts an arbitrary collection ID and returns the full collection data — including title, type, and the serialized `data` field containing HTTP requests with headers and potentially secrets — to any authenticated user, without verifying that the requesting user owns the collection. This is an Insecure Direct Object Reference (IDOR) caused by a missing authorization check that exists on every other operation in the same resolver. Version 2026.2.0 fixes the issue.

NVD Source

Technical Analysis

CVE-2026-28217 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), with a CVSS base score of 6.5.