CVE•Published 2026-07-08•Modified 2026-07-16•1 article on news•5 live references•NVD data
CVE-2026-31309
Vulnerability data via NVD (ingested)
CVSS v3.1
9.8
CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS percentile
29
Exploit Prediction Scoring System · top 71% of all CVEs
Weaknesses (CWE)
Description
Improper authorization in the /tequilapi/config/user endpoint of Mysterium Node from v1.21.1-rc0 before v1.36.0 allows an unauthenticated attacker to arbitrarily overwrite the node's configuration and achieve a full node takeover via a crafted POST request.
Timeline
Published 2026-07-08
Modified 2026-07-16
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-2026-31309Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2026-31309Censys host search filtered to this CVE id.
grep.app
CVE-2026-31309Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2026-31309GitHub code search for direct mentions.
Google dork
"CVE-2026-31309" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.