High · 8.5 CVE-2026-34932 EUVD-2026-18540

hoppscotch: Stored XSS via mock server responses on backend origin

Published Apr 2, 2026 · Updated Apr 6, 2026 · Assigned by GitHub_M

Description

hoppscotch is an open source API development ecosystem. Prior to version 2026.3.0, there is a stored XSS vulnerability that can lead to CSRF. This issue has been patched in version 2026.3.0.

Affected products

Vendor	Product	Affected	Fixed
hoppscotch	hoppscotch	< 2026.3.0	—

References

https://github.com/hoppscotch/hoppscotch/security/advisories/GHSA-wj4r-hr4h-g98v
https://github.com/hoppscotch/hoppscotch/releases/tag/2026.3.0