Vulnerability-Lookup

Vulnerability from bitnami_vulndb

Published

2026-05-12 08:39

Modified

2026-05-19 09:16

Summary

Cillium exposes sensitive information included in the cilium-bugtool debug archive

Details

Cilium is a networking, observability, and security solution with an eBPF-based dataplane. Prior to versions 1.17.15, 1.18.9, and 1.19.3, the output of cilium-bugtool can contain sensitive data when the tool is run against Cilium deployments with WireGuard encryption enabled. This issue has been patched in versions 1.17.15, 1.18.9, and 1.19.3.

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "Bitnami",
        "name": "cilium",
        "purl": "pkg:bitnami/cilium"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.17.15"
            },
            {
              "introduced": "1.18.0"
            },
            {
              "fixed": "1.18.9"
            },
            {
              "introduced": "1.19.0"
            },
            {
              "fixed": "1.19.3"
            }
          ],
          "type": "SEMVER"
        }
      ],
      "severity": [
        {
          "score": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N",
          "type": "CVSS_V3"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-41520"
  ],
  "database_specific": {
    "cpes": [
      "cpe:2.3:a:cilium:cilium:*:*:*:*:*:go:*:*"
    ],
    "severity": "Medium"
  },
  "details": "Cilium is a networking, observability, and security solution with an eBPF-based dataplane. Prior to versions 1.17.15, 1.18.9, and 1.19.3, the output of cilium-bugtool can contain sensitive data when the tool is run against Cilium deployments with WireGuard encryption enabled. This issue has been patched in versions 1.17.15, 1.18.9, and 1.19.3.",
  "id": "BIT-cilium-2026-41520",
  "modified": "2026-05-19T09:16:23.954Z",
  "published": "2026-05-12T08:39:50.452Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/cilium/cilium/releases/tag/v1.17.15"
    },
    {
      "type": "WEB",
      "url": "https://github.com/cilium/cilium/releases/tag/v1.18.9"
    },
    {
      "type": "WEB",
      "url": "https://github.com/cilium/cilium/releases/tag/v1.19.3"
    },
    {
      "type": "WEB",
      "url": "https://github.com/cilium/cilium/security/advisories/GHSA-gj49-89wh-h4gj"
    },
    {
      "type": "WEB",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-41520"
    }
  ],
  "schema_version": "1.6.2",
  "summary": "Cillium exposes sensitive information included in the cilium-bugtool debug archive"
}

CVE-2026-41520 (GCVE-0-2026-41520)

Vulnerability from cvelistv5 – Published: 2026-05-08 22:01 – Updated: 2026-05-13 19:33

Title

Cillium exposes sensitive information included in the cilium-bugtool debug archive

Summary

Severity

7.9 (High)


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

CWE

CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor
CWE-312 - Cleartext Storage of Sensitive Information

Assigner

GitHub_M

References

4 references

URL	Tags
https://github.com/cilium/cilium/security/advisor…	x_refsource_CONFIRM
https://github.com/cilium/cilium/releases/tag/v1.17.15	x_refsource_MISC
https://github.com/cilium/cilium/releases/tag/v1.18.9	x_refsource_MISC
https://github.com/cilium/cilium/releases/tag/v1.19.3	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
cilium	cilium	Affected: < 1.17.15 Affected: >= 1.18.0, < 1.18.9 Affected: >= 1.19.0, < 1.19.3

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-41520",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-05-13T19:26:17.922178Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-05-13T19:33:28.377Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "cilium",
          "vendor": "cilium",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 1.17.15"
            },
            {
              "status": "affected",
              "version": "\u003e= 1.18.0, \u003c 1.18.9"
            },
            {
              "status": "affected",
              "version": "\u003e= 1.19.0, \u003c 1.19.3"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Cilium is a networking, observability, and security solution with an eBPF-based dataplane. Prior to versions 1.17.15, 1.18.9, and 1.19.3, the output of cilium-bugtool can contain sensitive data when the tool is run against Cilium deployments with WireGuard encryption enabled. This issue has been patched in versions 1.17.15, 1.18.9, and 1.19.3."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "NONE",
            "baseScore": 7.9,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "HIGH",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-200",
              "description": "CWE-200: Exposure of Sensitive Information to an Unauthorized Actor",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-312",
              "description": "CWE-312: Cleartext Storage of Sensitive Information",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-08T22:01:08.394Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/cilium/cilium/security/advisories/GHSA-gj49-89wh-h4gj",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/cilium/cilium/security/advisories/GHSA-gj49-89wh-h4gj"
        },
        {
          "name": "https://github.com/cilium/cilium/releases/tag/v1.17.15",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/cilium/cilium/releases/tag/v1.17.15"
        },
        {
          "name": "https://github.com/cilium/cilium/releases/tag/v1.18.9",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/cilium/cilium/releases/tag/v1.18.9"
        },
        {
          "name": "https://github.com/cilium/cilium/releases/tag/v1.19.3",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/cilium/cilium/releases/tag/v1.19.3"
        }
      ],
      "source": {
        "advisory": "GHSA-gj49-89wh-h4gj",
        "discovery": "UNKNOWN"
      },
      "title": "Cillium exposes sensitive information included in the cilium-bugtool debug archive"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-41520",
    "datePublished": "2026-05-08T22:01:08.394Z",
    "dateReserved": "2026-04-20T18:18:50.682Z",
    "dateUpdated": "2026-05-13T19:33:28.377Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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.

Detection rules are retrieved from Rulezet.

Action not permitted

Vulnerability from bitnami_vulndb

CVE-2026-41520 (GCVE-0-2026-41520)

Tags

Sightings

Nomenclature