How severe is CVE-2026-5774?

CVE-2026-5774 has a CVSS 3.x base score of 6.4, rated medium severity. It is exploitable over network with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability high.

Is CVE-2026-5774 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (15th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-5774?

CVE-2026-5774 affects Canonical Juju. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-5774?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-5774 have an EU (EUVD) identifier?

Yes. CVE-2026-5774 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-21366.

When was CVE-2026-5774 published?

CVE-2026-5774 was published on 2026-04-10 and last updated on 2026-06-17.

CVE-2026-5774

CVE-2026-5774 is a medium-severity vulnerability in Canonical Juju with a CVSS 3.x base score of 6.4. 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-362.

Key facts

Severity: Medium (CVSS 3.x base score 6.4)
CVSS v4: 6.0
EPSS exploit prediction: 0% (15th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-21366
Weakness: CWE-362
Affected product: Canonical Juju
Published: 2026-04-10
Last modified: 2026-06-17

Description

Improper synchronization of the userTokens map in the API server in Canonical Juju 4.0.5, 3.6.20, and 2.9.56 may allow an authenticated user to possibly cause a denial of service on the server or possibly reuse a single-use discharge token.

Frequently asked questions

What is CVE-2026-5774?: Improper synchronization of the userTokens map in the API server in Canonical Juju 4.0.5, 3.6.20, and 2.9.56 may allow an authenticated user to possibly cause a denial of service on the server or possibly reuse a single-use discharge token.
How severe is CVE-2026-5774?: CVE-2026-5774 has a CVSS 3.x base score of 6.4, rated medium severity. It is exploitable over network with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability high.
Is CVE-2026-5774 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (15th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-5774?: CVE-2026-5774 affects Canonical Juju. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-5774?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-5774 have an EU (EUVD) identifier?: Yes. CVE-2026-5774 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-21366.
When was CVE-2026-5774 published?: CVE-2026-5774 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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