What is CVE-2026-28215?

CVE-2026-28215 is a critical-severity vulnerability in Hoppscotch, classified under Improper Access Control. CVSS score: 9.1/10. Published 2026-02-26.

How severe is CVE-2026-28215?

Critical severity. CVSS v3 base score is 9.1 out of 10.

Auth bypass in Hoppscotch

CVE-2026-28215

hoppscotch is an open source API development ecosystem. Prior to version 2026.2.0, an unauthenticated attacker can overwrite the entire infrastructure configuration of a self-hosted Hoppscotch instance including OAuth provider credentials…

EPSS: 0.003 (51.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N.

Affected products

Hoppscotch — versions < 2026.2.0

Weakness classification (CWE)

References

https://github.com/hoppscotch/hoppscotch/security/advisories/GHSA-jwv8-867r-q9fg (x_refsource_CONFIRM)
https://github.com/hoppscotch/hoppscotch/releases/tag/2026.2.0 (x_refsource_MISC)

Frequently asked questions

What is CVE-2026-28215?: CVE-2026-28215 is a critical-severity vulnerability in Hoppscotch, classified under Improper Access Control. CVSS score: 9.1/10. Published 2026-02-26.
How severe is CVE-2026-28215?: Critical severity. CVSS v3 base score is 9.1 out of 10.