CVE•Published 2026-04-28•Modified 2026-04-30•0 articles on news•6 live references•NVD data
CVE-2026-42421Openclaw · Openclaw
Vulnerability data via NVD (ingested)
CVSS v3.1
5.4
MEDIUM
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
EPSS percentile
—
Weaknesses (CWE)
Description
OpenClaw before 2026.4.8 contains a session management vulnerability where existing WebSocket sessions survive shared gateway token rotation. Attackers can maintain unauthorized access to WebSocket connections after token rotation by exploiting the failure to disconnect existing shared-token sessions.
Timeline
Published 2026-04-28
Modified 2026-04-30
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-2026-42421Hosts Shodan has explicitly fingerprinted as vulnerable.
Shodan · product
product:"Openclaw Openclaw"All exposed Openclaw Openclaw instances — cross-reference with the CVE's affected-version range.
Shodan · banner/body mention
http.html:"Openclaw"HTTP body or banner mentions "Openclaw" — catches deploys Shodan didn't identify as a product.
More intel sources (5)
Shodan report
vuln:CVE-2026-42421Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2026-42421Censys host search filtered to this CVE id.
grep.app
CVE-2026-42421Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2026-42421GitHub code search for direct mentions.
Google dork
"CVE-2026-42421" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.
Known PoCs on GitHub
No public proof-of-concept repositories found for CVE-2026-42421 on GitHub.
We haven't classified any articles referencing CVE-2026-42421 yet. The external references above still apply.