CVE•Published 2026-04-15•Modified 2026-07-15•1 article on news•5 live references•NVD data
CVE-2026-6388
Vulnerability data via NVD (ingested)
CVSS v3.1
9.1
CRITICAL
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:H/A:L
EPSS percentile
28
Exploit Prediction Scoring System · top 72% of all CVEs
Weaknesses (CWE)
Description
A flaw was found in ArgoCD Image Updater. This vulnerability allows an attacker, with permissions to create or modify an ImageUpdater resource in a multi-tenant environment, to bypass namespace boundaries. By exploiting insufficient validation, the attacker can trigger unauthorized image updates on applications managed by other tenants. This leads to cross-namespace privilege escalation, impacting application integrity through unauthorized application updates.
Timeline
Published 2026-04-15
Modified 2026-07-15
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-2026-6388Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2026-6388Censys host search filtered to this CVE id.
grep.app
CVE-2026-6388Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2026-6388GitHub code search for direct mentions.
Google dork
"CVE-2026-6388" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.