What is CVE-2026-34932?

CVE-2026-34932 is a critical-severity vulnerability in Hoppscotch, classified under Cross-site Scripting. CVSS score: 9.3/10. Published 2026-04-02.

How severe is CVE-2026-34932?

Critical severity. CVSS v3 base score is 9.3 out of 10.

XSS in Hoppscotch

CVE-2026-34932

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.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.003 (20.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.3 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N.

Affected products

Hoppscotch — versions < 2026.3.0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

security-advisories@github.com (x_refsource_CONFIRM, Vendor Advisory)
security-advisories@github.com (x_refsource_MISC, Release Notes)

Frequently asked questions

What is CVE-2026-34932?: CVE-2026-34932 is a critical-severity vulnerability in Hoppscotch, classified under Cross-site Scripting. CVSS score: 9.3/10. Published 2026-04-02.
How severe is CVE-2026-34932?: Critical severity. CVSS v3 base score is 9.3 out of 10.