CVE-2026-34932

CRITICALNVD 9.39.3—

9.3

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.

CVSS v3: 9.3
EG Score: 9.3(medium)
EPSS: 2.9%
KEV: Not listed

Published

April 2, 2026

Last Modified

April 15, 2026

Advisory Details (2)

Auto-updated May 20, 2026

🔬 Proof of concept available. Patch available. Sources: github.

github Patch Available🟡 PoC Available

Stored XSS via mock server responses on backend origin · Advisory · hoppscotch/hoppscotch · GitHub

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

generic

Release 2026.3.0 · hoppscotch/hoppscotch · GitHub

https://github.com/hoppscotch/hoppscotch/releases/tag/2026.3.0

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-79Cross-site Scripting (XSS)

Data Freshness Timeline

(refreshed 16× in last 7d / 20× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-05-31 22:30 UTCepss_batch
2026-05-31 22:30 UTCepss_batch
2026-05-31 00:16 UTCepss_batch
2026-05-31 00:16 UTCepss_batch
2026-05-31 00:16 UTCepss_batch
2026-05-29 13:44 UTCepss_batch
2026-05-29 13:44 UTCepss_batch
2026-05-28 13:44 UTCepss_batch
2026-05-28 13:44 UTCepss_batch
2026-05-28 13:44 UTCepss_batch
2026-05-27 13:40 UTCepss_batch
2026-05-27 13:40 UTCepss_batch
2026-05-27 13:40 UTCepss_batch
2026-05-26 13:44 UTCepss_batch
2026-05-26 07:18 UTCepss_batch
2026-05-26 07:18 UTCepss_batch
2026-05-23 00:08 UTCEG score recompute
2026-05-20 22:38 UTCepss_batch
2026-05-20 22:38 UTCepss_batch
2026-05-20 19:20 UTCEG score recompute

Frequently asked(5)

What is CVE-2026-34932?

CVE-2026-34932 is a critical vulnerability published on April 2, 2026. 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.

When was CVE-2026-34932 disclosed?

CVE-2026-34932 was first published in the National Vulnerability Database on April 2, 2026, with the most recent update on April 15, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2026-34932 actively exploited?

CVE-2026-34932 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 2.9% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2026-34932?

CVE-2026-34932 has a CVSS v3 base score of 9.3 (NVD).

How do I remediate CVE-2026-34932?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-34932, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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CVE-2026-34932

📅 Published

🔄 Last Modified

📋 Advisory Details (2)