How severe is CVE-2026-5412?

CVE-2026-5412 has a CVSS 3.x base score of 9.9, rated critical severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-5412 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (36th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-5412?

CVE-2026-5412 affects Canonical Juju. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-5412?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

Does CVE-2026-5412 have an EU (EUVD) identifier?

Yes. CVE-2026-5412 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-21364.

When was CVE-2026-5412 published?

CVE-2026-5412 was published on 2026-04-10 and last updated on 2026-06-17.

CVE-2026-5412

CVE-2026-5412 is a critical-severity vulnerability in Canonical Juju with a CVSS 3.x base score of 9.9. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-285.

Key facts

Severity: Critical (CVSS 3.x base score 9.9)
EPSS exploit prediction: 0% (36th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-21364
Weakness: CWE-285
Affected product: Canonical Juju
Published: 2026-04-10
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2026-5412?: 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.
How severe is CVE-2026-5412?: CVE-2026-5412 has a CVSS 3.x base score of 9.9, rated critical severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-5412 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (36th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-5412?: CVE-2026-5412 affects Canonical Juju. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-5412?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
Does CVE-2026-5412 have an EU (EUVD) identifier?: Yes. CVE-2026-5412 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-21364.
When was CVE-2026-5412 published?: CVE-2026-5412 was published on 2026-04-10 and last updated on 2026-06-17.

References

Affected products (1)

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

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