CVE-2026-94640: high-severity vulnerability in Red Hat Enterprise Linux 10
Rpcbind: unbounded memory allocation in rpcbind statistics tracking allows unauthenticated remote denial of service
Published · Updated
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21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.5epss 0.5%
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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected products
Red Hat · Red Hat Enterprise Linux 10Red Hat · Red Hat Enterprise Linux 6Red Hat · Red Hat Enterprise Linux 7Red Hat · Red Hat Enterprise Linux 8Red Hat · Red Hat Enterprise Linux 9Red Hat · Red Hat OpenShift Container Platform 4Red Hat · Red Hat OpenShift Container Platform 4.22Red Hat · Red Hat OpenShift Container Platform 5Related CVEs — Red Hat Enterprise Linux 10
In the same product, most dangerous first.
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References
https://access.redhat.com/errata/RHSA-2026:83561https://access.redhat.com/errata/RHSA-2026:83562https://access.redhat.com/errata/RHSA-2026:83563https://access.redhat.com/errata/RHSA-2026:89197https://access.redhat.com/security/cve/CVE-2026-94640https://bugzilla.redhat.com/show_bug.cgi?id=2462960