Description
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.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 10 | — | — |
| Red Hat | Red Hat Enterprise Linux 8 | — | — |
| Red Hat | Red Hat Enterprise Linux 9 | — | — |
| Red Hat | Red Hat OpenShift Container Platform 4.22 | — | — |
| Red Hat | Red Hat Enterprise Linux 6 | — | — |
| Red Hat | Red Hat Enterprise Linux 7 | — | — |
| Red Hat | Red Hat OpenShift Container Platform 4 | — | — |
| Red Hat | Red Hat OpenShift Container Platform 5 | — | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | rpcbind | No fix yet | — |
| Debian 13 | rpcbind | No fix yet | — |
| Debian 12 | rpcbind | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | rpcbind | No fix yet | — |
| Ubuntu 26.04 LTS | rpcbind | No fix yet | — |
| Ubuntu 24.04 LTS | rpcbind | No fix yet | — |
| Ubuntu 22.04 LTS | rpcbind | No fix yet | — |
| Ubuntu 20.04 LTS | rpcbind | No fix yet | — |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 18.04 LTS | rpcbind | No fix yet | — |
| Ubuntu Pro 16.04 LTS | rpcbind | No fix yet | — |
| Ubuntu Pro 14.04 LTS | rpcbind | No fix yet | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 10 | rpcbind | 1.2.7-3.el10_2.1 | RHSA-2026:83561 |
| RHEL 9 | rpcbind | 1.2.6-7.el9_8.1 | RHSA-2026:83562 |
| RHEL 8 | rpcbind | 1.2.5-11.el8_10 | RHSA-2026:83563 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 10 | rpcbind | 1.2.7-3.el10_2.1 | ALSA-2026:83561 |
| AlmaLinux 9 | rpcbind | 1.2.6-7.el9_8.1 | ALSA-2026:83562 |
| AlmaLinux 8 | rpcbind | 1.2.5-11.el8_10 | ALSA-2026:83563 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 10 | rpcbind | 1.2.7-3.el10_2.1 | RLSA-2026:83561 |
| Rocky Linux 9 | rpcbind | 1.2.6-7.el9_8.1 | RLSA-2026:83562 |
| Rocky Linux 8 | rpcbind | 1.2.5-11.el8_10 | RLSA-2026:83563 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP7 | rpcbind | 0.2.3-150000.5.17.1 | SUSE-SU-2026:4568-1 |
| SLES 15 SP6 | rpcbind | 0.2.3-150000.5.17.1 | SUSE-SU-2026:4568-1 |
| SLES 15 SP5 | rpcbind | 0.2.3-150000.5.17.1 | SUSE-SU-2026:4568-1 |
| SLES 15 SP4 | rpcbind | 0.2.3-150000.5.17.1 | SUSE-SU-2026:4568-1 |
| SLES 12 SP5 | rpcbind | 0.2.3-24.18.1 | SUSE-SU-2026:4446-1 |
Show 13 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 16.0 | rpcbind | 1.2.9-160000.3.1 | SUSE-SU-2026:23946-1 |
| SLES for SAP 15 SP6 | rpcbind | 0.2.3-150000.5.17.1 | SUSE-SU-2026:4568-1 |
| SLES for SAP 15 SP5 | rpcbind | 0.2.3-150000.5.17.1 | SUSE-SU-2026:4568-1 |
| SLES for SAP 15 SP4 | rpcbind | 0.2.3-150000.5.17.1 | SUSE-SU-2026:4568-1 |
| SLES 16.0 | rpcbind | 1.2.9-160000.3.1 | SUSE-SU-2026:23946-1 |
| SLE Micro 6.2 | rpcbind | 1.2.9-160000.3.1 | SUSE-SU-2026:23959-1 |
| SLE Micro 6.1 | rpcbind | 1.2.9-slfo.1.1_3.1 | SUSE-SU-2026:24275-1 |
| SLE Micro 6.0 | rpcbind | 1.2.9-159998.1.1 | SUSE-SU-2026:24320-1 |
| SLE Micro 5.5 | rpcbind | 0.2.3-150000.5.17.1 | SUSE-SU-2026:4568-1 |
| SLE Micro 5.4 | rpcbind | 0.2.3-150000.5.17.1 | SUSE-SU-2026:4568-1 |
| SLE Micro 5.3 | rpcbind | 0.2.3-150000.5.17.1 | SUSE-SU-2026:4568-1 |
| SLE HPC 15 SP5 | rpcbind | 0.2.3-150000.5.17.1 | SUSE-SU-2026:4568-1 |
| SLE HPC 15 SP4 | rpcbind | 0.2.3-150000.5.17.1 | SUSE-SU-2026:4568-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | rpcbind | 1.2.9-3.1 | openSUSE-SU-2026:11929-1 |
| openSUSE Leap 16.0 | rpcbind | 1.2.9-160000.3.1 | openSUSE-SU-2026:21975-1 |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2023 | rpcbind | 1.2.6-0.amzn2023.0.3 | ALAS2023-2026-3169 |
| Amazon Linux 2 | rpcbind | 0.2.0-45.amzn2 | ALAS2-2026-3972 |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 3 | rpcbind | No fix yet | — |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 10 | rpcbind | 1.2.7-3.el10_2.1 | ELSA-2026-83561 |
| Oracle Linux 9 | rpcbind | 1.2.6-7.el9_8.1 | ELSA-2026-83562 |
| Oracle Linux 8 | rpcbind | 1.2.5-11.el8_10 | ELSA-2026-83563 |
Advisories 23
- ALSA-2026:83562 Important: rpcbind security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2026:83561 Important: rpcbind security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2026:83563 Important: rpcbind security update AlmaLinux Security Advisories · Oct 29, 2026
- WID-SEC-2026-3979 Red Hat Enterprise Linux (rpcbind): Schwachstelle ermöglicht Denial of Service BSI CERT-Bund (WID) · Oct 27, 2026
- SUSE-SU-2026:24320-1 Security update for rpcbind SUSE / openSUSE Security Updates · Oct 27, 2026
- SUSE-SU-2026:24275-1 Security update for rpcbind SUSE / openSUSE Security Updates · Oct 27, 2026
- RLSA-2026:83561 Important: rpcbind security update Rocky Linux Security Advisories · Oct 16, 2026
- RLSA-2026:83562 Important: rpcbind security update Rocky Linux Security Advisories · Oct 16, 2026
- RLSA-2026:83563 Important: rpcbind security update Rocky Linux Security Advisories · Oct 16, 2026
- RHSA-2026:83562 Red Hat Security Advisory: rpcbind security update Red Hat Security Advisories (RHSA) · Oct 16, 2026
- RHSA-2026:83561 Red Hat Security Advisory: rpcbind security update Red Hat Security Advisories (RHSA) · Oct 16, 2026
- RHSA-2026:83563 Red Hat Security Advisory: rpcbind security update Red Hat Security Advisories (RHSA) · Oct 16, 2026
- ELSA-2026-83561 Important: rpcbind security update (Oracle Linux 10) Oracle Linux Security Advisories (ELSA) · Oct 15, 2026
- ELSA-2026-83562 Important: rpcbind security update (Oracle Linux 9) Oracle Linux Security Advisories (ELSA) · Oct 15, 2026
- ELSA-2026-83563 Important: rpcbind security update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Oct 15, 2026
- ALAS2-2026-3972 Important: rpcbind security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Oct 12, 2026
- ALAS2023-2026-3169 Important: rpcbind security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · Oct 12, 2026
- SUSE-SU-2026:4568-1 Security update for rpcbind SUSE / openSUSE Security Updates · Oct 8, 2026
- SUSE-SU-2026:4446-1 Security update for rpcbind SUSE / openSUSE Security Updates · Oct 5, 2026
- SUSE-SU-2026:23946-1 Security update for rpcbind SUSE / openSUSE Security Updates · Oct 2, 2026
- SUSE-SU-2026:23959-1 Security update for rpcbind SUSE / openSUSE Security Updates · Oct 2, 2026
- openSUSE-SU-2026:21975-1 Security update for rpcbind SUSE / openSUSE Security Updates · Oct 1, 2026
- openSUSE-SU-2026:11929-1 rpcbind-1.2.9-3.1 on GA media SUSE / openSUSE Security Updates · Sep 30, 2026
References
- RHSA-2026:83561 vendor-advisory
- RHSA-2026:83562 vendor-advisory
- RHSA-2026:83563 vendor-advisory
- RHSA-2026:89197 vendor-advisory
- https://access.redhat.com/security/cve/CVE-2026-94640 vdb-entry
- RHBZ#2462960 issue-tracking