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CVE-2026-5774

Juju API Server Denial of Service and Authentication Replay via Unsynchronized Token Map

CVSS 6.1 MEDIUMEPSS 0.2%CWE-362
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:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Affected products
Canonical · Juju

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References
https://github.com/juju/juju/pull/22205https://github.com/juju/juju/pull/22206https://github.com/juju/juju/security/advisories/GHSA-7m55-2hr4-pw78