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CVE-2026-5412

Status: AnalyzedMedium (6.5)—

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.

CVSS

Exploitation probability (EPSS)

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

Affected technologies (1)

Canonical — Juju

CWEs

References

Raw JSON (NVD)

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{
  "id": "CVE-2026-5412",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-5412",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-04-10T14:03:51.021044Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "security@ubuntu.com",
        "cvssData": {
          "scope": "CHANGED",
          "version": "3.1",
          "baseScore": 9.9,
          "attackVector": "NETWORK",
          "baseSeverity": "CRITICAL",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 6,
        "exploitabilityScore": 3.1
      },
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 6.5,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 2.8
      }
    ]
  },
  "affected": [
    {
      "source": "security@ubuntu.com",
      "affectedData": [
        {
          "repo": "https://github.com/juju/juju",
          "vendor": "Canonical",
          "product": "Juju",
          "versions": [
            {
              "status": "affected",
              "version": "2.9.0",
              "lessThan": "2.9.57",
              "versionType": "semver"
            },
            {
              "status": "affected",
              "version": "3.6.0",
              "lessThan": "3.6.21",
              "versionType": "semver"
            }
          ],
          "platforms": [
            "Linux"
          ],
          "packageName": "juju",
          "collectionURL": "https://github.com/juju/",
          "defaultStatus": "unaffected"
        }
      ]
    }
  ],
  "published": "2026-04-10T13:16:45.780",
  "references": [
    {
      "url": "https://github.com/juju/juju/pull/22205",
      "tags": [
        "Issue Tracking",
        "Patch"
      ],
      "source": "security@ubuntu.com"
    },
    {
      "url": "https://github.com/juju/juju/pull/22206",
      "tags": [
        "Issue Tracking",
        "Patch"
      ],
      "source": "security@ubuntu.com"
    },
    {
      "url": "https://github.com/juju/juju/security/advisories/GHSA-w5fq-8965-c969",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "source": "security@ubuntu.com"
    }
  ],
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "security@ubuntu.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-285"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "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."
    }
  ],
  "lastModified": "2026-06-17T10:58:59.020",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:canonical:juju:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "A2161D9F-0627-4EAF-A6FD-81B9056D31FC",
              "versionEndExcluding": "2.9.57"
            },
            {
              "criteria": "cpe:2.3:a:canonical:juju:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "2966CF99-1F57-40F3-8EFA-161BF47644DB",
              "versionEndExcluding": "3.6.21",
              "versionStartIncluding": "3.6"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "security@ubuntu.com"
}