9.9

CVE-2026-5412: canonical juju Improper Authorization

CVSS: 9.9v3.1CriticalAnalyzed
AliasesGHSA-w5fq-8965-c969GO-2026-5692
Published 10-04-2026Last modified 10-04-2026
Open JSON

Vulnerability summary

CVE-2026-5412 is a critical (CVSS 9.9) Improper Authorization vulnerability in canonical juju. EPSS estimates a 0.48% chance of exploitation in the next 30 days, higher than 40.4% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.9/10
010
Critical · v3.1 (CVE.org)
EPSS score
0.48%
0%100%
Low · +0.04 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1github

Advisory lineage

Upstream 0 · Downstream 1 · Related 1
OPENSUSE-SU-2026:21483-1

Timeline

  1. 10-04-2026
    PublishedVulnerability first disclosed.
  2. 10-04-2026
    Last modifiedVulnerability information updated.

Description

In Juju versions prior to 2.9.57 and 3.6.21, an authorization issue exists in the Controller facade. An authenticated user can call the CloudSpec API method to extract the cloud credentials used to bootstrap the controller. This allows a low-privileged user to access sensitive credentials. This issue is resolved in Juju versions 2.9.57 and 3.6.21.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.48%

Chance of exploitation in the next 30 days

Percentile

40%

Versus all other CVEs

30-day change

+0.04 pp

From 0.45% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.48%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • githubUnverified

    Juju

    Maturity: poc

Weaknesses

CWE · root cause

Affected systems

Canonical1 product
  • juju≥ 2.9.0, < 2.9.57 | ≥ 3.6.0, < 3.6.21 | < 2.9.57 | ≥ 3.6, < 3.6.21
Github.com/juju1 product
  • juju< 0.0.0-20260408003526-d395054dc2c3

2 vendors · 2 products

References

5 links