CVE•Published 2026-04-02•Modified 2026-07-24•1 article on news•5 live references•NVD data
CVE-2026-34931Hoppscotch · Hoppscotch
Vulnerability data via NVD (ingested)
CVSS v3.1
9.6
CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
EPSS percentile
30
Exploit Prediction Scoring System · top 70% of all CVEs
Weaknesses (CWE)
Description
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.
Timeline
Published 2026-04-02
Modified 2026-07-24
External references
Search for exposed instances
Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).
Shodan · vuln tag0 hosts
vuln:CVE-2026-34931Hosts Shodan has explicitly fingerprinted as vulnerable.
Shodan · product
product:"Hoppscotch Hoppscotch"All exposed Hoppscotch Hoppscotch instances — cross-reference with the CVE's affected-version range.
Shodan · banner/body mention
http.html:"Hoppscotch"HTTP body or banner mentions "Hoppscotch" — catches deploys Shodan didn't identify as a product.
More intel sources (5)
Shodan report
vuln:CVE-2026-34931Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2026-34931Censys host search filtered to this CVE id.
grep.app
CVE-2026-34931Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2026-34931GitHub code search for direct mentions.
Google dork
"CVE-2026-34931" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.
Known PoCs on GitHub
No public proof-of-concept repositories found for CVE-2026-34931 on GitHub.