JFrog Artifactory flaws chained to administrator access and Rust backdoor deployment

Wiz disclosed coordinated exploitation of CVE-2026-42018, which returns an internal anonymous-user token to an unauthenticated caller, chained with CVE-2026-42016 to escalate that token to administrator scope, taking attackers from first request to new admin account in under five minutes. Separately CVE-2026-82329, a CVSS 9.8 authentication bypass, was exploited between 1 and 8 September with approximately 406,000 attempts detected on 2 September alone. Post-compromise activity included persistent admin account creation, malicious Groovy plugin installation, custom Rust backdoor deployment and extraction of cluster join keys for lateral movement. Cloud instances were unaffected; CISA KEV-listed CVE-2026-42016 and CVE-2026-42018 on 11 September and CVE-2026-82329 on 2 September.