Rpcbind: unbounded memory allocation in rpcbind statistics tracking allows unauthenticated remote denial of service
CVE-2026-94640 is fixed in 3 products on 1 platform, first by RHSA-2026:83561, released July 22, 2026. It is not reported as exploited. Patch Radar priority: High.
The rpcbind utility is a server that converts Remote Procedure Call (RPC) program numbers into universal addresses. It must be running on the host to be able to make RPC calls on a server on that machine. Security Fix(es): * rpcbind: Unbounded memory allocation in rpcbind statistics tracking allows unauthenticated remote denial of service (CVE-2026-94640) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| rpcbind · RHEL 10 | 1.2.7-3.el10_2.1 | RHSA-2026:83561 | Jul 22, 2026 |
| rpcbind · RHEL 8 | 0:1.2.5-11.el8_10 | RHSA-2026:83563 | Oct 16, 2026 |
| rpcbind · RHEL 9 | 0:1.2.6-7.el9_8.1 | RHSA-2026:83562 | Oct 16, 2026 |
| rpcbind · almalinux 10 | 1.2.7-3.el10_2.1 | ALSA-2026:83561 | Nov 7, 2026 |
| rpcbind · almalinux 8 | 1.2.5-11.el8_10 | ALSA-2026:83563 | Nov 7, 2026 |
| rpcbind · almalinux 9 | 1.2.6-7.el9_8.1 | ALSA-2026:83562 | Nov 7, 2026 |
| rpcbind · amzn 2023 | 1.2.6-0.amzn2023.0.3 | ALAS2023-2026-3169 | Nov 7, 2026 |
| rpcbind · ol 10 | 0:1.2.7-3.el10_2.1 | ELSA-2026-83561 | Nov 7, 2026 |
| rpcbind · ol 8 | 0:1.2.5-11.el8_10 | ELSA-2026-83563 | Nov 7, 2026 |
| rpcbind · ol 9 | 0:1.2.6-7.el9_8.1 | ELSA-2026-83562 | Nov 7, 2026 |
| rpcbind · opensuse-leap 16.0 | 1.2.9-160000.3.1 | OPENSUSE-SU-2026:21975-1 | Sep 29, 2026 |
| rpcbind · rocky 10 | 0:1.2.7-3.el10_2.1 | RLSA-2026:83561 | Nov 7, 2026 |
| rpcbind · rocky 8 | 0:1.2.5-11.el8_10 | RLSA-2026:83563 | Nov 7, 2026 |
| rpcbind · rocky 9 | 0:1.2.6-7.el9_8.1 | RLSA-2026:83562 | Nov 7, 2026 |
| rpcbind · sles 15.6 | 0.2.3-150000.5.17.1 | SUSE-SU-2026:4568-1 | Oct 7, 2026 |
| rpcbind · sles 15.7 | 0.2.3-150000.5.17.1 | SUSE-SU-2026:4568-1 | Oct 7, 2026 |
| rpcbind · sles 16.0 | 1.2.9-160000.3.1 | SUSE-SU-2026:23946-1 | Sep 29, 2026 |
| rpcbind-debuginfo · amzn 2023 | 1.2.6-0.amzn2023.0.3 | ALAS2023-2026-3169 | Nov 7, 2026 |
| rpcbind-debugsource · amzn 2023 | 1.2.6-0.amzn2023.0.3 | ALAS2023-2026-3169 | Nov 7, 2026 |
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