CVE-2026-41185 (GCVE-0-2026-41185)

Vulnerability from cvelistv5 – Published: 2026-05-28 15:47 – Updated: 2026-05-28 17:03
VLAI
Title
ServiceAccount token disclosure via Azure IPAM CNI plugin logs
Summary
When Calico is configured with the Azure IPAM plugin, the Calico CNI binary mutates the incoming CNI configuration to attach subnet information before delegating to the IPAM plugin. After mutating, the Azure IPAM helper logs the entire unmarshaled configuration map (stdinData) at INFO level to /var/log/calico/cni/cni.log on every CNI ADD and DEL invocation — once per pod scheduled or terminated on the node. When the cluster is deployed using token-based Kubernetes authentication, this log entry contains the ServiceAccount token, client key, and certificate authority in plaintext. Any principal with read access to /var/log/calico/cni/cni.log on a node  can read these logs and extract the credentials, which grant cluster-wide Calico networking admin privileges.
Severity
6 (Medium)
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:L/SI:L/SA:L
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-28 17:03 UTC
CWE
  • CWE-532 - Insertion of sensitive information into log file
Assigner
Tigera CNA under the mitre root
CNA scorecard – unranked: 6 records in the last 180 days, 10 needed details
References
Impacted products
Vendor Product Version CPE status
Tigera Calico Affected: 0 , < 3.32.0 (semver)
    cpe:2.3:a:tigera:calico:*:*:*:*:*:*:*:*
Create a notification for this product.
Tigera Calico Enterprise Affected: 0 , < 3.21.7 (semver)
Affected: 3.22.0 , < 3.22.3 (semver)
    cpe:2.3:a:tigera:calico_enterprise:*:*:*:*:*:*:*:*
    cpe:2.3:a:tigera:calico_enterprise:*:*:*:*:*:*:*:*
Create a notification for this product.
Tigera Calico Cloud Affected: 0 , < 22.4.0 (semver)
    cpe:2.3:a:tigera:calico_cloud:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2026-05-29 03:59
Credits
Behnam Shobiri Behnam Shobiri Anthony Tam Matt Dupre Casey Davenport
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-41185",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-05-28T17:03:45.985275Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-05-28T17:03:54.074Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "affected",
          "product": "Calico",
          "vendor": "Tigera",
          "versions": [
            {
              "lessThan": "3.32.0",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Calico Enterprise",
          "vendor": "Tigera",
          "versions": [
            {
              "lessThan": "3.21.7",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThan": "3.22.3",
              "status": "affected",
              "version": "3.22.0",
              "versionType": "semver"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Calico Cloud",
          "vendor": "Tigera",
          "versions": [
            {
              "lessThan": "22.4.0",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:a:tigera:calico:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "3.32.0",
                  "versionStartIncluding": "0",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            },
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:a:tigera:calico_enterprise:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "3.21.7",
                  "versionStartIncluding": "0",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:tigera:calico_enterprise:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "3.22.3",
                  "versionStartIncluding": "3.22.0",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            },
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:a:tigera:calico_cloud:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "22.4.0",
                  "versionStartIncluding": "0",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ],
          "operator": "OR"
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Behnam Shobiri"
        },
        {
          "lang": "en",
          "type": "remediation developer",
          "value": "Behnam Shobiri"
        },
        {
          "lang": "en",
          "type": "remediation reviewer",
          "value": "Anthony Tam"
        },
        {
          "lang": "en",
          "type": "remediation reviewer",
          "value": "Matt Dupre"
        },
        {
          "lang": "en",
          "type": "remediation verifier",
          "value": "Casey Davenport"
        }
      ],
      "datePublic": "2026-05-29T03:59:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cspan\u003eWhen Calico is configured with the Azure IPAM plugin, the Calico CNI binary mutates the incoming CNI configuration to attach subnet information before delegating to the IPAM plugin. After mutating, the Azure IPAM helper logs the entire unmarshaled configuration map (\u003c/span\u003e\u003cspan\u003estdinData\u003c/span\u003e\u003cspan\u003e) at \u003c/span\u003e\u003cspan\u003eINFO\u003c/span\u003e\u003cspan\u003e level to \u003c/span\u003e\u003cspan\u003e/var/log/calico/cni/cni.log\u003c/span\u003e\u003cspan\u003e on every CNI \u003c/span\u003e\u003cspan\u003eADD\u003c/span\u003e\u003cspan\u003e and \u003c/span\u003e\u003cspan\u003eDEL\u003c/span\u003e\u003cspan\u003e invocation \u2014 once per pod scheduled or terminated on the node. When the cluster is deployed using token-based Kubernetes authentication, this log entry contains the ServiceAccount token, client key, and certificate authority in plaintext. Any principal with read access to /var/log/calico/cni/cni.log on a node\u0026nbsp; can read these logs and extract the credentials, which grant cluster-wide Calico networking admin privileges.\u003c/span\u003e"
            }
          ],
          "value": "When Calico is configured with the Azure IPAM plugin, the Calico CNI binary mutates the incoming CNI configuration to attach subnet information before delegating to the IPAM plugin. After mutating, the Azure IPAM helper logs the entire unmarshaled configuration map (stdinData) at INFO level to /var/log/calico/cni/cni.log on every CNI ADD and DEL invocation \u2014 once per pod scheduled or terminated on the node. When the cluster is deployed using token-based Kubernetes authentication, this log entry contains the ServiceAccount token, client key, and certificate authority in plaintext. Any principal with read access to /var/log/calico/cni/cni.log on a node\u00a0 can read these logs and extract the credentials, which grant cluster-wide Calico networking admin privileges."
        }
      ],
      "impacts": [
        {
          "capecId": "CAPEC-150",
          "descriptions": [
            {
              "lang": "en",
              "value": "CAPEC-150 Collect Data from Common Resource Locations"
            }
          ]
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "Automatable": "NOT_DEFINED",
            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "LOW",
            "attackRequirements": "PRESENT",
            "attackVector": "NETWORK",
            "baseScore": 6,
            "baseSeverity": "MEDIUM",
            "exploitMaturity": "NOT_DEFINED",
            "privilegesRequired": "LOW",
            "providerUrgency": "NOT_DEFINED",
            "subAvailabilityImpact": "LOW",
            "subConfidentialityImpact": "LOW",
            "subIntegrityImpact": "LOW",
            "userInteraction": "NONE",
            "valueDensity": "NOT_DEFINED",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:L/SI:L/SA:L",
            "version": "4.0",
            "vulnAvailabilityImpact": "NONE",
            "vulnConfidentialityImpact": "HIGH",
            "vulnIntegrityImpact": "NONE",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-532",
              "description": "CWE-532 Insertion of sensitive information into log file",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-28T15:47:42.791Z",
        "orgId": "e6d453f4-3dae-4941-bcea-9af25f4e824d",
        "shortName": "Tigera"
      },
      "references": [
        {
          "tags": [
            "patch"
          ],
          "url": "https://github.com/projectcalico/calico/pull/12502"
        },
        {
          "tags": [
            "patch"
          ],
          "url": "https://github.com/projectcalico/calico/pull/12527"
        },
        {
          "tags": [
            "patch"
          ],
          "url": "https://github.com/projectcalico/calico/pull/12526"
        },
        {
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://www.tigera.io/security-bulletins/tta-2026-002/"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "ServiceAccount token disclosure via Azure IPAM CNI plugin logs",
      "x_generator": {
        "engine": "Vulnogram 1.0.2"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "e6d453f4-3dae-4941-bcea-9af25f4e824d",
    "assignerShortName": "Tigera",
    "cveId": "CVE-2026-41185",
    "datePublished": "2026-05-28T15:47:42.791Z",
    "dateReserved": "2026-04-17T17:41:35.905Z",
    "dateUpdated": "2026-05-28T17:03:54.074Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-41185",
      "date": "2026-11-12",
      "epss": "0.00323",
      "percentile": "0.25639"
    },
    "nvd": {
      "cve": {
        "affected": [
          {
            "affectedData": [
              {
                "defaultStatus": "affected",
                "product": "Calico",
                "vendor": "Tigera",
                "versions": [
                  {
                    "lessThan": "3.32.0",
                    "status": "affected",
                    "version": "0",
                    "versionType": "semver"
                  }
                ]
              },
              {
                "defaultStatus": "affected",
                "product": "Calico Enterprise",
                "vendor": "Tigera",
                "versions": [
                  {
                    "lessThan": "3.21.7",
                    "status": "affected",
                    "version": "0",
                    "versionType": "semver"
                  },
                  {
                    "lessThan": "3.22.3",
                    "status": "affected",
                    "version": "3.22.0",
                    "versionType": "semver"
                  }
                ]
              },
              {
                "defaultStatus": "affected",
                "product": "Calico Cloud",
                "vendor": "Tigera",
                "versions": [
                  {
                    "lessThan": "22.4.0",
                    "status": "affected",
                    "version": "0",
                    "versionType": "semver"
                  }
                ]
              }
            ],
            "source": "psirt@tigera.io"
          }
        ],
        "configurations": [
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:a:tigera:calico:*:*:*:*:enterprise:*:*:*",
                    "matchCriteriaId": "68BC4A3E-A53E-463F-B627-EB21276BE079",
                    "versionEndExcluding": "3.21.7",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:tigera:calico:*:*:*:*:open_source:*:*:*",
                    "matchCriteriaId": "878E68F9-0DAD-465A-875C-AAEC94EB3C72",
                    "versionEndExcluding": "3.32.0",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:tigera:calico:*:*:*:*:cloud:*:*:*",
                    "matchCriteriaId": "91B89C3B-F20D-403E-9207-39C084B6BCDB",
                    "versionEndExcluding": "22.4.0",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:tigera:calico:*:*:*:*:enterprise:*:*:*",
                    "matchCriteriaId": "A3C3C22D-0E75-48A1-A1C7-8DD4FE15BF1E",
                    "versionEndExcluding": "3.22.3",
                    "versionStartIncluding": "3.22.0",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "When Calico is configured with the Azure IPAM plugin, the Calico CNI binary mutates the incoming CNI configuration to attach subnet information before delegating to the IPAM plugin. After mutating, the Azure IPAM helper logs the entire unmarshaled configuration map (stdinData) at INFO level to /var/log/calico/cni/cni.log on every CNI ADD and DEL invocation \u2014 once per pod scheduled or terminated on the node. When the cluster is deployed using token-based Kubernetes authentication, this log entry contains the ServiceAccount token, client key, and certificate authority in plaintext. Any principal with read access to /var/log/calico/cni/cni.log on a node\u00a0 can read these logs and extract the credentials, which grant cluster-wide Calico networking admin privileges."
          }
        ],
        "id": "CVE-2026-41185",
        "lastModified": "2026-06-17T10:46:17.790",
        "metrics": {
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "NETWORK",
                "availabilityImpact": "NONE",
                "baseScore": 6.5,
                "baseSeverity": "MEDIUM",
                "confidentialityImpact": "HIGH",
                "integrityImpact": "NONE",
                "privilegesRequired": "LOW",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
                "version": "3.1"
              },
              "exploitabilityScore": 2.8,
              "impactScore": 3.6,
              "source": "nvd@nist.gov",
              "type": "Primary"
            }
          ],
          "cvssMetricV40": [
            {
              "cvssData": {
                "Automatable": "NOT_DEFINED",
                "Recovery": "NOT_DEFINED",
                "Safety": "NOT_DEFINED",
                "attackComplexity": "LOW",
                "attackRequirements": "PRESENT",
                "attackVector": "NETWORK",
                "availabilityRequirement": "NOT_DEFINED",
                "baseScore": 6.0,
                "baseSeverity": "MEDIUM",
                "confidentialityRequirement": "NOT_DEFINED",
                "exploitMaturity": "NOT_DEFINED",
                "integrityRequirement": "NOT_DEFINED",
                "modifiedAttackComplexity": "NOT_DEFINED",
                "modifiedAttackRequirements": "NOT_DEFINED",
                "modifiedAttackVector": "NOT_DEFINED",
                "modifiedPrivilegesRequired": "NOT_DEFINED",
                "modifiedSubAvailabilityImpact": "NOT_DEFINED",
                "modifiedSubConfidentialityImpact": "NOT_DEFINED",
                "modifiedSubIntegrityImpact": "NOT_DEFINED",
                "modifiedUserInteraction": "NOT_DEFINED",
                "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
                "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
                "modifiedVulnIntegrityImpact": "NOT_DEFINED",
                "privilegesRequired": "LOW",
                "providerUrgency": "NOT_DEFINED",
                "subAvailabilityImpact": "LOW",
                "subConfidentialityImpact": "LOW",
                "subIntegrityImpact": "LOW",
                "userInteraction": "NONE",
                "valueDensity": "NOT_DEFINED",
                "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:L/SI:L/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
                "version": "4.0",
                "vulnAvailabilityImpact": "NONE",
                "vulnConfidentialityImpact": "HIGH",
                "vulnIntegrityImpact": "NONE",
                "vulnerabilityResponseEffort": "NOT_DEFINED"
              },
              "source": "psirt@tigera.io",
              "type": "Secondary"
            }
          ],
          "ssvcV203": [
            {
              "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "ssvcData": {
                "id": "CVE-2026-41185",
                "options": [
                  {
                    "exploitation": "none"
                  },
                  {
                    "automatable": "no"
                  },
                  {
                    "technicalImpact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-05-28T17:03:45.985275Z",
                "version": "2.0.3"
              }
            }
          ]
        },
        "published": "2026-05-28T17:16:22.670",
        "references": [
          {
            "source": "psirt@tigera.io",
            "tags": [
              "Issue Tracking"
            ],
            "url": "https://github.com/projectcalico/calico/pull/12502"
          },
          {
            "source": "psirt@tigera.io",
            "tags": [
              "Issue Tracking",
              "Patch"
            ],
            "url": "https://github.com/projectcalico/calico/pull/12526"
          },
          {
            "source": "psirt@tigera.io",
            "tags": [
              "Issue Tracking",
              "Patch"
            ],
            "url": "https://github.com/projectcalico/calico/pull/12527"
          },
          {
            "source": "psirt@tigera.io",
            "tags": [
              "Vendor Advisory"
            ],
            "url": "https://www.tigera.io/security-bulletins/tta-2026-002/"
          }
        ],
        "sourceIdentifier": "psirt@tigera.io",
        "vulnStatus": "Analyzed",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-532"
              }
            ],
            "source": "psirt@tigera.io",
            "type": "Secondary"
          }
        ]
      }
    },
    "redhat_vex": {
      "current_release_date": "2026-06-05T19:36:40+00:00",
      "cve": "CVE-2026-41185",
      "id": "CVE-2026-41185",
      "initial_release_date": "2026-05-29T03:59:00+00:00",
      "product_status:known_not_affected": "1",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "ServiceAccount token disclosure via Azure IPAM CNI plugin logs",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-41185.json",
      "version": "3"
    },
    "vulnrichment": {
      "containers": {
        "adp": [
          {
            "metrics": [
              {
                "other": {
                  "content": {
                    "id": "CVE-2026-41185",
                    "options": [
                      {
                        "Exploitation": "none"
                      },
                      {
                        "Automatable": "no"
                      },
                      {
                        "Technical Impact": "partial"
                      }
                    ],
                    "role": "CISA Coordinator",
                    "timestamp": "2026-05-28T17:03:45.985275Z",
                    "version": "2.0.3"
                  },
                  "type": "ssvc"
                }
              }
            ],
            "providerMetadata": {
              "dateUpdated": "2026-05-28T17:03:51.092Z",
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP"
            },
            "title": "CISA ADP Vulnrichment"
          }
        ],
        "cna": {
          "affected": [
            {
              "defaultStatus": "affected",
              "product": "Calico",
              "vendor": "Tigera",
              "versions": [
                {
                  "lessThan": "3.32.0",
                  "status": "affected",
                  "version": "0",
                  "versionType": "semver"
                }
              ]
            },
            {
              "defaultStatus": "affected",
              "product": "Calico Enterprise",
              "vendor": "Tigera",
              "versions": [
                {
                  "lessThan": "3.21.7",
                  "status": "affected",
                  "version": "0",
                  "versionType": "semver"
                },
                {
                  "lessThan": "3.22.3",
                  "status": "affected",
                  "version": "3.22.0",
                  "versionType": "semver"
                }
              ]
            },
            {
              "defaultStatus": "affected",
              "product": "Calico Cloud",
              "vendor": "Tigera",
              "versions": [
                {
                  "lessThan": "22.4.0",
                  "status": "affected",
                  "version": "0",
                  "versionType": "semver"
                }
              ]
            }
          ],
          "cpeApplicability": [
            {
              "nodes": [
                {
                  "cpeMatch": [
                    {
                      "criteria": "cpe:2.3:a:tigera:calico:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "3.32.0",
                      "versionStartIncluding": "0",
                      "vulnerable": true
                    }
                  ],
                  "negate": false,
                  "operator": "OR"
                },
                {
                  "cpeMatch": [
                    {
                      "criteria": "cpe:2.3:a:tigera:calico_enterprise:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "3.21.7",
                      "versionStartIncluding": "0",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:a:tigera:calico_enterprise:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "3.22.3",
                      "versionStartIncluding": "3.22.0",
                      "vulnerable": true
                    }
                  ],
                  "negate": false,
                  "operator": "OR"
                },
                {
                  "cpeMatch": [
                    {
                      "criteria": "cpe:2.3:a:tigera:calico_cloud:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "22.4.0",
                      "versionStartIncluding": "0",
                      "vulnerable": true
                    }
                  ],
                  "negate": false,
                  "operator": "OR"
                }
              ],
              "operator": "OR"
            }
          ],
          "credits": [
            {
              "lang": "en",
              "type": "finder",
              "value": "Behnam Shobiri"
            },
            {
              "lang": "en",
              "type": "remediation developer",
              "value": "Behnam Shobiri"
            },
            {
              "lang": "en",
              "type": "remediation reviewer",
              "value": "Anthony Tam"
            },
            {
              "lang": "en",
              "type": "remediation reviewer",
              "value": "Matt Dupre"
            },
            {
              "lang": "en",
              "type": "remediation verifier",
              "value": "Casey Davenport"
            }
          ],
          "datePublic": "2026-05-29T03:59:00.000Z",
          "descriptions": [
            {
              "lang": "en",
              "supportingMedia": [
                {
                  "base64": false,
                  "type": "text/html",
                  "value": "\u003cspan\u003eWhen Calico is configured with the Azure IPAM plugin, the Calico CNI binary mutates the incoming CNI configuration to attach subnet information before delegating to the IPAM plugin. After mutating, the Azure IPAM helper logs the entire unmarshaled configuration map (\u003c/span\u003e\u003cspan\u003estdinData\u003c/span\u003e\u003cspan\u003e) at \u003c/span\u003e\u003cspan\u003eINFO\u003c/span\u003e\u003cspan\u003e level to \u003c/span\u003e\u003cspan\u003e/var/log/calico/cni/cni.log\u003c/span\u003e\u003cspan\u003e on every CNI \u003c/span\u003e\u003cspan\u003eADD\u003c/span\u003e\u003cspan\u003e and \u003c/span\u003e\u003cspan\u003eDEL\u003c/span\u003e\u003cspan\u003e invocation \u2014 once per pod scheduled or terminated on the node. When the cluster is deployed using token-based Kubernetes authentication, this log entry contains the ServiceAccount token, client key, and certificate authority in plaintext. Any principal with read access to /var/log/calico/cni/cni.log on a node\u0026nbsp; can read these logs and extract the credentials, which grant cluster-wide Calico networking admin privileges.\u003c/span\u003e"
                }
              ],
              "value": "When Calico is configured with the Azure IPAM plugin, the Calico CNI binary mutates the incoming CNI configuration to attach subnet information before delegating to the IPAM plugin. After mutating, the Azure IPAM helper logs the entire unmarshaled configuration map (stdinData) at INFO level to /var/log/calico/cni/cni.log on every CNI ADD and DEL invocation \u2014 once per pod scheduled or terminated on the node. When the cluster is deployed using token-based Kubernetes authentication, this log entry contains the ServiceAccount token, client key, and certificate authority in plaintext. Any principal with read access to /var/log/calico/cni/cni.log on a node\u00a0 can read these logs and extract the credentials, which grant cluster-wide Calico networking admin privileges."
            }
          ],
          "impacts": [
            {
              "capecId": "CAPEC-150",
              "descriptions": [
                {
                  "lang": "en",
                  "value": "CAPEC-150 Collect Data from Common Resource Locations"
                }
              ]
            }
          ],
          "metrics": [
            {
              "cvssV4_0": {
                "Automatable": "NOT_DEFINED",
                "Recovery": "NOT_DEFINED",
                "Safety": "NOT_DEFINED",
                "attackComplexity": "LOW",
                "attackRequirements": "PRESENT",
                "attackVector": "NETWORK",
                "baseScore": 6,
                "baseSeverity": "MEDIUM",
                "exploitMaturity": "NOT_DEFINED",
                "privilegesRequired": "LOW",
                "providerUrgency": "NOT_DEFINED",
                "subAvailabilityImpact": "LOW",
                "subConfidentialityImpact": "LOW",
                "subIntegrityImpact": "LOW",
                "userInteraction": "NONE",
                "valueDensity": "NOT_DEFINED",
                "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:L/SI:L/SA:L",
                "version": "4.0",
                "vulnAvailabilityImpact": "NONE",
                "vulnConfidentialityImpact": "HIGH",
                "vulnIntegrityImpact": "NONE",
                "vulnerabilityResponseEffort": "NOT_DEFINED"
              },
              "format": "CVSS",
              "scenarios": [
                {
                  "lang": "en",
                  "value": "GENERAL"
                }
              ]
            }
          ],
          "problemTypes": [
            {
              "descriptions": [
                {
                  "cweId": "CWE-532",
                  "description": "CWE-532 Insertion of sensitive information into log file",
                  "lang": "en",
                  "type": "CWE"
                }
              ]
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2026-05-28T15:47:42.791Z",
            "orgId": "e6d453f4-3dae-4941-bcea-9af25f4e824d",
            "shortName": "Tigera"
          },
          "references": [
            {
              "tags": [
                "patch"
              ],
              "url": "https://github.com/projectcalico/calico/pull/12502"
            },
            {
              "tags": [
                "patch"
              ],
              "url": "https://github.com/projectcalico/calico/pull/12527"
            },
            {
              "tags": [
                "patch"
              ],
              "url": "https://github.com/projectcalico/calico/pull/12526"
            },
            {
              "tags": [
                "vendor-advisory"
              ],
              "url": "https://www.tigera.io/security-bulletins/tta-2026-002/"
            }
          ],
          "source": {
            "discovery": "UNKNOWN"
          },
          "title": "ServiceAccount token disclosure via Azure IPAM CNI plugin logs",
          "x_generator": {
            "engine": "Vulnogram 1.0.2"
          }
        }
      },
      "cveMetadata": {
        "assignerOrgId": "e6d453f4-3dae-4941-bcea-9af25f4e824d",
        "assignerShortName": "Tigera",
        "cveId": "CVE-2026-41185",
        "datePublished": "2026-05-28T15:47:42.791Z",
        "dateReserved": "2026-04-17T17:41:35.905Z",
        "dateUpdated": "2026-05-28T17:03:54.074Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.

Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

JSON
How durations are calculated

Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.

Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.

Loading timeline…




    Related by attack behaviour

    Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.