A flaw was found in rpcbind. This vulnerability allows a remote, unauthenticated attacker to cause a Denial of Service (DoS) by sending a large number of unique requests. The rpcbind service records previously unseen RPC (Remote Procedure Call) statistics in unbounded in-memory lists, leading to persistent memory growth and increased CPU usage. This can degrade or exhaust service availability.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alma_linux | — | Upgrade rpcbind | Oct 18, 2026 | Oct 15, 2026 |
| Amazon Linux Ami 2 | — | Upgrade rpcbindUpgrade rpcbind-debuginfo | Oct 19, 2026 | Oct 19, 2026 |
| Amazon_linux_2023 | — | Upgrade rpcbindUpgrade rpcbind-debugsourceUpgrade rpcbind-debuginfo | Oct 13, 2026 | Sep 22, 2026 |
| Oracle_linux | — | Upgrade rpcbind | Oct 22, 2026 | Sep 22, 2026 |
| Redhat_linux | — | Upgrade rpcbindUpgrade rpcbind-debuginfoUpgrade rpcbind-debugsourceNo solution exists | Sep 24, 2026 | Jul 22, 2026 |
| Rocky_linux | — | Upgrade rpcbind-debugsourceUpgrade rpcbind-debuginfoUpgrade rpcbind | Oct 19, 2026 | Oct 16, 2026 |
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