CVE-2026-5774 — MEDIUM (6.4)

Q: How severe is CVE-2026-5774?

CVE-2026-5774 has been rated MEDIUM with a CVSS base score of 6.4/10. Review the CVSS metrics above for detailed severity breakdown.

Q: Is there a patch for CVE-2026-5774?

Check the references section above for vendor advisories and patch information. Affected products include: Canonical Juju.

Vulnerability 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.

CVSS Score

6.4

MEDIUM

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

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

LOW

Integrity

LOW

Availability

HIGH

Affected Products

Vendor	Product	Versions
Canonical	Juju	< 2.9.57

Related Weaknesses (CWE)

CWE-362

References

https://github.com/juju/juju/pull/22205Issue Tracking
https://github.com/juju/juju/pull/22206Issue Tracking
https://github.com/juju/juju/security/advisories/GHSA-7m55-2hr4-pw78ExploitThird Party Advisory
https://github.com/juju/juju/security/advisories/GHSA-7m55-2hr4-pw78ExploitThird Party Advisory

FAQ

What is CVE-2026-5774?

CVE-2026-5774 is a vulnerability with a CVSS score of 6.4 (MEDIUM). 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 poss...

How severe is CVE-2026-5774?

CVE-2026-5774 has been rated MEDIUM with a CVSS base score of 6.4/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-5774?

Check the references section above for vendor advisories and patch information. Affected products include: Canonical Juju.