Allocation of Resources Without Limits or Throttling Affecting collectd-sensubility package, versions <0:0.2.1-8.el9ost


Severity

Recommended
0.0
high
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.4% (34th percentile)

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  • Snyk IDSNYK-RHEL9-COLLECTDSENSUBILITY-21820145
  • published29 Oct 2026
  • disclosed12 Aug 2026

Introduced: 12 Aug 2026

CVE-2026-73500  (opens in a new tab)
CWE-770  (opens in a new tab)

How to fix?

Upgrade RHEL:9 collectd-sensubility to version 0:0.2.1-8.el9ost or higher.
This issue was patched in RHSA-2026:90329.

NVD Description

Note: Versions mentioned in the description apply only to the upstream collectd-sensubility package and not the collectd-sensubility package as distributed by RHEL. See How to fix? for RHEL:9 relevant fixed versions and status.

etcd is a distributed key-value store for the data of a distributed system. Prior to versions 3.5.33, 3.6.14, and 3.7.1, a network attacker who can reach an etcd TLS listener can open many TCP connections and never send a ClientHello. In client/pkg/transport/listener_tls.go, each connection handled by tlsListener.acceptLoop spawns a goroutine that blocks indefinitely inside tls.Conn.Handshake() and remains tracked in the pending map. Unbounded goroutine and map growth can exhaust memory in the etcd process, causing loss of availability for the cluster and, when etcd backs Kubernetes, the control plane. This issue is fixed in versions 3.5.33, 3.6.14, and 3.7.1.

CVSS Base Scores

version 3.1