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    CVE-2026-28217

    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.

    Published:Feb 26, 2026
    Last Modified:Apr 17, 2026
    EPS:Feb 26, 2026
    EPSS Score:0.00015
    CVSS Score:6.5

    Affected Products

    Vendor
    Hoppscotch
    Product
    Hoppscotch

    Exploits

    https://github.com/hoppscotch/hoppscotch/security/advisories/GHSA-m5pg-r4jp-qq75

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-665 Exploitation of Thunderbolt Protection Flaws

    Related CVEs

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    CVE-2026-44478 (CVSS 7.5) — hoppscotch is an open source API development ecosystem. The fix for CVE-2026-28215 in version 2026.2.0 address…
    CVE-2026-34931 (CVSS 8.5) — hoppscotch is an open source API development ecosystem. Prior to version 2026.3.0, there is an open redirect v…
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    CVE-2026-30825 (CVSS 0) — hoppscotch is an open source API development ecosystem. Prior to version 2026.2.1, the DELETE /v1/access-token…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High