CVE•Published 2026-04-08•Modified 2026-07-24•1 article on news•4 live references•NVD data
CVE-2026-39429Kcp · Kcp
Vulnerability data via NVD (ingested)
CVSS v3.1
8.2
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N
EPSS percentile
35
Exploit Prediction Scoring System · top 65% of all CVEs
Description
kcp is a Kubernetes-like control plane for form-factors and use-cases beyond Kubernetes and container workloads. Prior to 0.30.3 and 0.29.3, the cache server is directly exposed by the root shard and has no authentication or authorization in place. This allows anyone who can access the root shard to read and write to the cache server. This vulnerability is fixed in 0.30.3 and 0.29.3.
Timeline
Published 2026-04-08
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). Live host counts are a Premium feature.
Shodan · vuln tag
vuln:CVE-2026-39429Hosts Shodan has explicitly fingerprinted as vulnerable.
Shodan · product
product:"Kcp Kcp"All exposed Kcp Kcp instances — cross-reference with the CVE's affected-version range.
Shodan · banner/body mention
http.html:"Kcp"HTTP body or banner mentions "Kcp" — catches deploys Shodan didn't identify as a product.
More intel sources (5)
Shodan report
vuln:CVE-2026-39429Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2026-39429Censys host search filtered to this CVE id.
grep.app
CVE-2026-39429Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2026-39429GitHub code search for direct mentions.
Google dork
"CVE-2026-39429" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.
Known PoCs on GitHub
No public proof-of-concept repositories found for CVE-2026-39429 on GitHub.