CVE•Published 2026-08-29•Modified 2026-09-02•1 article on news•5 live references•NVD data
CVE-2026-82456
Vulnerability data via NVD (ingested)
CVSS v3.1
10.0
CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
EPSS percentile
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Weaknesses (CWE)
Description
argocd-mcp 0.8.0 binds its HTTP transport to every network interface and accepts MCP sessions without requiring caller credentials when ARGOCD_API_TOKEN is configured. Attackers who can reach the listener can invoke the full tool surface using the operator's stored token to create applications, request syncs, and modify Argo CD resources.
Timeline
Published 2026-08-29
Modified 2026-09-02
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).
More intel sources (5)
Shodan report
vuln:CVE-2026-82456Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2026-82456Censys host search filtered to this CVE id.
grep.app
CVE-2026-82456Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2026-82456GitHub code search for direct mentions.
Google dork
"CVE-2026-82456" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.