Vulnerability-Lookup

GHSA-J78R-9XRV-VXF6

Vulnerability from github – Published: 2026-10-08 00:30 – Updated: 2026-10-08 00:30

Details

Vault and Vault Enterprise did not consistently evaluate ACL policies against the canonical form of resource and policy names. This may allow an authenticated user with delegated permissions to bypass an explicit deny restriction and access a protected resource or assign a denied policy, potentially leading to privilege escalation. This vulnerability (CVE-2026-89322) is fixed in Vault Community Edition 2.1.2, and Vault Enterprise 2.1.2, 1.21.12, 1.20.17, and 1.19.23.

Severity

7.2 (High)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2026-89322"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-178"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-10-07T23:17:01Z",
    "severity": "HIGH"
  },
  "details": "Vault and Vault Enterprise did not consistently evaluate ACL policies against the canonical form of resource and policy names. This may allow an authenticated user with delegated permissions to bypass an explicit deny restriction and access a protected resource or assign a denied policy, potentially leading to privilege escalation. This vulnerability (CVE-2026-89322) is fixed in Vault Community Edition 2.1.2, and Vault Enterprise 2.1.2, 1.21.12, 1.20.17, and 1.19.23.",
  "id": "GHSA-j78r-9xrv-vxf6",
  "modified": "2026-10-08T00:30:59Z",
  "published": "2026-10-08T00:30:59Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-89322"
    },
    {
      "type": "WEB",
      "url": "https://discuss.hashicorp.com/t/hcsec-2026-43-vault-inconsistent-acl-policy-evaluation-may-allow-bypass-of-deny-restrictions/77815"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2026-89322 (GCVE-0-2026-89322)

Vulnerability from cvelistv5 – Published: 2026-10-07 22:01 – Updated: 2026-10-08 12:37

Title

Vault ACL Policy Evaluation May Allow Bypass of Deny Restrictions

Summary

Severity

7.2 (High)


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

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-10-08 12:33 UTC

CWE

CWE-178 - Improper Handling of Case Sensitivity

Assigner

HashiCorp CNA under the mitre root

CNA scorecard C 70/100 over 45 records in the last 180 days details

References

1 reference

URL	Tags
https://discuss.hashicorp.com/t/hcsec-2026-43-vau…

Impacted products

2 products

Vendor	Product	Version
HashiCorp	Vault	Affected: 0.0.1 , < 2.1.2 (semver)
HashiCorp	Vault Enterprise	Affected: 0.0.1 , < 2.1.2 (semver)

Credits

This issue was reported to HashiCorp by Han Sang-Kyung (HAN-BAMBO) and by additional internal and external parties.

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  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-89322",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-10-08T12:33:43.679984Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-10-08T12:37:23.714Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "platforms": [
            "64 bit",
            "32 bit",
            "x86",
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            "MacOS",
            "Windows",
            "Linux"
          ],
          "product": "Vault",
          "repo": "https://github.com/hashicorp/vault",
          "vendor": "HashiCorp",
          "versions": [
            {
              "lessThan": "2.1.2",
              "status": "affected",
              "version": "0.0.1",
              "versionType": "semver"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "platforms": [
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          ],
          "product": "Vault Enterprise",
          "repo": "https://github.com/hashicorp/vault",
          "vendor": "HashiCorp",
          "versions": [
            {
              "changes": [
                {
                  "at": "1.21.12",
                  "status": "unaffected"
                },
                {
                  "at": "1.20.17",
                  "status": "unaffected"
                },
                {
                  "at": "1.19.23",
                  "status": "unaffected"
                }
              ],
              "lessThan": "2.1.2",
              "status": "affected",
              "version": "0.0.1",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "value": "This issue was reported to HashiCorp by Han Sang-Kyung (HAN-BAMBO) and by additional internal and external parties."
        }
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            }
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          "value": "Vault and Vault Enterprise did not consistently evaluate ACL policies against the canonical form of resource and policy names. This may allow an authenticated user with delegated permissions to bypass an explicit deny restriction and access a protected resource or assign a denied policy, potentially leading to privilege escalation. This vulnerability (CVE-2026-89322) is fixed in Vault Community Edition 2.1.2, and Vault Enterprise 2.1.2, 1.21.12, 1.20.17, and 1.19.23."
        }
      ],
      "impacts": [
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          "capecId": "CAPEC-267",
          "descriptions": [
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              "lang": "en",
              "value": "CAPEC-267: Leverage Alternate Encoding"
            }
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      ],
      "metrics": [
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          "cvssV3_1": {
            "baseScore": 7.2,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
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      "providerMetadata": {
        "dateUpdated": "2026-10-07T22:01:37.893Z",
        "orgId": "67fedba0-ff2e-4543-ba5b-aa93e87718cc",
        "shortName": "HashiCorp"
      },
      "references": [
        {
          "url": "https://discuss.hashicorp.com/t/hcsec-2026-43-vault-inconsistent-acl-policy-evaluation-may-allow-bypass-of-deny-restrictions/77815"
        }
      ],
      "source": {
        "advisory": "HCSEC-2026-43",
        "discovery": "EXTERNAL"
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      "title": "Vault ACL Policy Evaluation May Allow Bypass of Deny Restrictions"
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    "dateReserved": "2026-09-11T14:10:52.452Z",
    "dateUpdated": "2026-10-08T12:37:23.714Z",
    "state": "PUBLISHED"
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}

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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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GHSA-J78R-9XRV-VXF6

CVE-2026-89322 (GCVE-0-2026-89322)

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