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CVE-2026-82435: Apache Storm Worker: Unauthenticated Remote Memory Exhaustion in the Worker Messaging Decoder
Unauthenticated remote memory exhaustion in Apache Storm Worker 3.0.x Netty decoder fixed in 3.1.0, allowing pre-auth denial of service.
CVE-2026-82435 (rated important) affects Apache Storm Worker (org.apache.storm:storm-client) versions 3.0.0 before 3.1.0. The worker's Netty message decoder sits ahead of SASL authentication handlers and processes frames before any authentication occurs. It allocates buffers sized from an attacker-controlled length field, so a single frame from an unauthenticated peer reaching the worker can exhaust memory. Users must upgrade to 3.1.0.
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CVE-2026-82430: Apache Storm Worker Launcher: Local Privilege Escalation to Root via Container Command Files Chowned to the Tenant
Setuid-root Apache Storm worker-launcher chowns worker directory to the tenant before reading its command file, enabling local root privilege escalation.
CVE-2026-82430 affects Apache Storm Worker Launcher (org.apache.storm:storm-core) versions 3.0.0 before 3.1.0, rated important. When launching Docker or OCI workers, the setuid-root worker-launcher transfers ownership of the entire worker directory to the untrusted topology user before reading and acting on the supervisor-written command file in that directory. An untrusted tenant can tamper with the command file to achieve local privilege escalation to root. Fixed in version 3.1.0.
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CVE-2026-82429: Apache Storm Worker Launcher: Local Privilege Escalation to Root via a Time-of-Check Race in the Worker Launcher
Apache Storm's setuid-root worker-launcher re-resolves paths during recursive chown/chmod, letting local users win a race to escalate to root.
CVE-2026-82429 affects Apache Storm Worker Launcher (org.apache.storm:storm-core) versions 3.0.0 before 3.1.0, rated important. The setuid-root worker-launcher walks worker directories with FTS calling lchown and chmod on full pathnames while running with effective uid 0, and both syscalls re-resolve the path at call time. A local attacker can exploit this time-of-check race by swapping path components to gain root privileges. Fixed in version 3.1.0.
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