CVE-2026-5774: medium-severity vulnerability in Canonical Juju
Juju API Server Denial of Service and Authentication Replay via Unsynchronized Token Map
Published
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 6.1epss 0.3%
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 · JujuRelated CVEs — Canonical Juju
In the same product, most dangerous first.
CVE-2025-53513HIGHZip slip vulnerability in JujuEPSS 0.8%CVE-2025-0928HIGHArbitrary executable upload via authenticated endpointEPSS 0.7%CVE-2026-5412CRITICALJuju CloudSpec API could leak senstive informationEPSS 0.5%CVE-2026-4370CRITICALImproper TLS Client/Server authentication and certificate verification on Database ClusterEPSS 0.4%CVE-2025-53512MEDIUMSensitive log retrieval in JujuEPSS 0.4%CVE-2026-32693HIGHUnauthorized access to Kubernetes secrets in JujuEPSS 0.3%