CVE•Published 2026-06-12•Modified 2026-07-23•0 articles on news•4 live references•NVD data
CVE-2026-53837Openclaw · Openclaw
Vulnerability data via NVD (ingested)
CVSS v3.1
3.7
LOW
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
EPSS percentile
9
Exploit Prediction Scoring System · top 91% of all CVEs
Weaknesses (CWE)
Description
OpenClaw before 2026.5.6 contains an improper access control vulnerability in Mattermost event handlers that fails to validate channel type metadata. Attackers can bypass intended DM policy decisions by sending crafted Mattermost events missing channel type information to process restricted content.
Timeline
Published 2026-06-12
Modified 2026-07-23
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-2026-53837Hosts 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-2026-53837Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2026-53837Censys host search filtered to this CVE id.
grep.app
CVE-2026-53837Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2026-53837GitHub code search for direct mentions.
Google dork
"CVE-2026-53837" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.
Known PoCs on GitHub
No public proof-of-concept repositories found for CVE-2026-53837 on GitHub.
We haven't classified any articles referencing CVE-2026-53837 yet. The external references above still apply.