CVE-2026-5412Published

Juju CloudSpec API could leak senstive information

Collected exploitation and prediction evidence

CISA KEV is observed exploitation evidence. FIRST EPSS is a dated prediction of exploitation in the next 30 days. Missing scores are unknown. This collector requests predictions only for explicit CVE aliases in the public NuGet archive; Microsoft release views retain their existing prediction scope.

No collected risk observation for these identifiers. This does not establish absence of exploitation or a zero probability.

cve-program · CVE-2026-5412

Published

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.

Source published: 10 Apr 2026 12:22:05 UTC
Source modified: 10 Apr 2026 14:04:30 UTC
Observed here: 23 Oct 2026 15:48:27 UTC
Source terms: CVE Program Terms of Use

Original source record · Cite this exact observation · Complete original publisher JSON

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CVSS 3.1 · 9.9 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

euvd · EUVD-2026-21364

Published

EUVD source date text has no stated timezone and is retained without inventing a UTC instant. Related bulletin membership is not an alias, common cause or applicability claim. A missing vector with a zero score is treated as unrated. Complete vendor/product and underlying source evidence remains in the original JSON.

Original publisher date fields

datePublished: Apr 10, 2026, 12:22:05 PM

dateUpdated: Apr 10, 2026, 2:04:30 PM

Source published: Apr 10, 2026, 12:22:05 PM (timezone not stated)
Source modified: Apr 10, 2026, 2:04:30 PM (timezone not stated)
Observed here: 28 Oct 2026 08:07:16 UTC
Source terms: ENISA EUVD · source terms and attribution apply

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EUVD CVSS 3.1 · 9.9 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

nvd · CVE-2026-5412

Published

NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON.

Source analysis status: Analyzed

Weakness classifications: CWE-285

Original publisher date fields

published: 2026-04-10T13:16:45.780

lastModified: 2026-10-26T21:10:00.170

1 source CPE criteria · context only

cpe:2.3:a:canonical:juju:*:*:*:*:*:*:*:*

The original JSON retains the logical configuration operators, exclusions and version bounds.

Source published: 10 Apr 2026 13:16:45 UTC
Source modified: 26 Oct 2026 21:10:00 UTC
Observed here: 27 Oct 2026 14:13:29 UTC
Source terms: NIST NVD usage terms; underlying source attribution retained

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This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: nvd · NIST NVD usage terms; underlying source attribution retained. Source text is retained; field grouping and change labels are provided by ChangeIntel.

CVSS 3.1 · [email protected] · Secondary · 9.9 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

CVSS 3.1 · [email protected] · Primary · 6.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

osv · GHSA-w5fq-8965-c969

Published

### Impact If a user has login permission to a controller and knows the controller model UUID, they can call the CloudSpec method on the Controller facade and get cloud credentials used to bootstrap the controller. The CloudSpec API is called by workers running in the controller to maintain connection to the cloud - this aspect is not the issue. The API is also called by the CLI when killing (force destroying a controller with `juju kill-controller`). This is the problematic aspect. The API is exposed to any client caller where that client has nothing more than logon permission on the controller. What should happen is that getting access to the credential should be limited to those client connections where the authenticated user has superuser or model admin permission. This affect 2.9, 3.6, 4.0.6 (snap from 4.0/edge channel). The fix will allow non-confidential, public information like cloud endpoint etc to be read, but only controller superusers or model admins will be able to see the credential details. ### Patches No patch exists. ### Workarounds The only mitigation is to restrict ingress to the controller API port 17070 on all controller machines (for vm deployments) or the controller service (for k8s deployments). The Juju CLI and other clients like libjuju or JAAS require ingress to port 17070 so any restricted access will need to take into account those access requirements.

Source published: 10 Apr 2026 21:00:16 UTC
Source modified: 25 Jun 2026 23:11:47 UTC
Observed here: 24 Oct 2026 13:19:41 UTC
Source terms: GitHub Advisory Database · CC-BY-4.0

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This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: osv · GitHub Advisory Database · CC-BY-4.0. Source text is retained; field grouping and change labels are provided by ChangeIntel.

CVSS_V3 · CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Publisher rating · CRITICAL

osv · GO-2026-5692

Published

Juju: CloudSpec method leaking cloud credentials in github.com/juju/juju

Source published: 25 Jun 2026 22:34:38 UTC
Source modified: 25 Jun 2026 23:01:27 UTC
Observed here: 24 Oct 2026 13:19:41 UTC
Source terms: OSV · upstream source license applies

Original source record · Cite this exact observation · Complete original publisher JSON

This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: osv · OSV · upstream source license applies. Source text is retained; field grouping and change labels are provided by ChangeIntel.