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    CVE-2026-34931

    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.

    Published:Apr 2, 2026
    Last Modified:Apr 15, 2026
    EPS:Apr 2, 2026
    EPSS Score:0.00054
    CVSS Score:9.6

    Affected Products

    Vendor
    Hoppscotch
    Product
    Hoppscotch

    Exploits

    https://github.com/hoppscotch/hoppscotch/security/advisories/GHSA-7fg7-wx5q-6m3v

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-178 Cross-Site Flashing

    Related CVEs

    CVE-2026-69189 (CVSS 7.6) — Hoppscotch is an open source API development ecosystem. Prior to 2026.6.0, the team, teamMembers.user, RESTHis…
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    CVE-2026-59721 (CVSS 7.2) — Hoppscotch is an open source API development ecosystem. Prior to 2026.6.0, the updateInfraConfigs GraphQL muta…
    CVE-2026-50160 (CVSS 10) — Hoppscotch is an API development ecosystem. In self-hosted deployments of hoppscotch-backend from version 2026…
    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-2026-34848 (CVSS 5.4) — hoppscotch is an open source API development ecosystem. Prior to version 2026.3.0, there is a stored XSS vulne…
    CVE-2026-34932 (CVSS 8.5) — hoppscotch is an open source API development ecosystem. Prior to version 2026.3.0, there is a stored XSS vulne…
    CVE-2026-34847 (CVSS 4.7) — hoppscotch is an open source API development ecosystem. Prior to version 2026.3.0, the /enter page contains a …
    CVE-2026-30825 (CVSS 0) — hoppscotch is an open source API development ecosystem. Prior to version 2026.2.1, the DELETE /v1/access-token…
    CVE-2026-28217 (CVSS 6.5) — hoppscotch is an open source API development ecosystem. Prior to version 2026.2.0, the `userCollection` GraphQ…

    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