CVE-2024-7558: Canonical Juju

High severity, CVSS 8.0. EPSS: 0.5% chance of exploitation in the next 30 days.

JUJU_CONTEXT_ID is a predictable authentication secret. On a Juju machine (non-Kubernetes) or Juju charm container (on Kubernetes), an unprivileged user in the same network namespace can connect to an abstract domain socket and guess the JUJU_CONTEXT_ID value. This gives the unprivileged user access to the same information and tools as the Juju charm.

Affected products

• Canonical Juju: before 2.9.51 (fixed in 2.9.51); from 3.1.0, before 3.1.10 (fixed in 3.1.10); from 3.2.0, before 3.2.4 (fixed in 3.2.4); from 3.3.0, before 3.3.7 (fixed in 3.3.7); from 3.4, before 3.4.6 (fixed in 3.4.6); from 3.5.0, before 3.5.4 (fixed in 3.5.4)

Published 2024-10-02. Last modified 2026-06-17.