Vulnerability-Lookup

CVE-2026-19017 (GCVE-0-2026-19017)

Vulnerability from cvelistv5 – Published: 2026-08-07 19:19 – Updated: 2026-08-10 21:12

Title

Consul vulnerable to partial arbitrary file read via Vault Connect CA provider

Summary

Consul Community Edition and Consul Enterprise 1.18.21 through 2.0.2 are vulnerable to a partial arbitrary file read when configured to use the Vault Connect CA provider with JWT or AppRole authentication. A privileged attacker with `operator:write` permission may direct Consul to read and forward credential files outside the intended scope, potentially leading to the exfiltration of sensitive secrets from the Consul server host. This vulnerability, CVE-2026-19017, is fixed in Consul 2.0.3 and Consul Enterprise 1.21.17, 1.22.11, and 2.0.3.

Severity

6.8 (Medium)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-10 18:38 UTC

CWE

CWE-862 - Missing Authorization

Assigner

HashiCorp

References

1 reference

URL	Tags
https://discuss.hashicorp.com/t/hcsec-2026-25-mul…

Impacted products

2 products

Vendor	Product	Version
HashiCorp	Consul	Affected: 1.18.21 , < 2.0.3 (semver)
HashiCorp	Consul Enterprise	Affected: 1.18.21 , < 2.0.3 (semver)

Credits

This issue was reported to HashiCorp by Kai Aizen / SnailSploit ("The Jailbreak Chef").

Show details on NVD website

JSON

To clipboard

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FKIE_CVE-2026-19017

Vulnerability from fkie_nvd - Published: 2026-08-07 20:16 - Updated: 2026-08-10 22:17

Severity

6.8 (Medium) - CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N

Summary

References

	URL	Tags
	security@hashicorp.com	https://discuss.hashicorp.com/t/hcsec-2026-25-multiple-vulnerabilities-impacting-hashicorp-consul/77629

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "platforms": [
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            "32 bit",
            "x86",
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            "Linux"
          ],
          "product": "Consul",
          "repo": "https://github.com/hashicorp/consul",
          "vendor": "HashiCorp",
          "versions": [
            {
              "lessThan": "2.0.3",
              "status": "affected",
              "version": "1.18.21",
              "versionType": "semver"
            }
          ]
        },
        {
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          "platforms": [
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            "32 bit",
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          "repo": "https://github.com/hashicorp/consul",
          "vendor": "HashiCorp",
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                  "status": "unaffected"
                }
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              "lessThan": "2.0.3",
              "status": "affected",
              "version": "1.18.21",
              "versionType": "semver"
            }
          ]
        }
      ],
      "source": "security@hashicorp.com"
    }
  ],
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    }
  ],
  "id": "CVE-2026-19017",
  "lastModified": "2026-08-10T22:17:09.330",
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GHSA-JGV4-5FJV-3XP7

Vulnerability from github – Published: 2026-08-07 21:30 – Updated: 2026-08-07 21:30

Details

Consul Community Edition and Consul Enterprise 1.18.21 through 2.0.2 are vulnerable to a partial arbitrary file read when configured to use the Vault Connect CA provider with JWT or AppRole authentication. A privileged attacker with operator:write permission may direct Consul to read and forward credential files outside the intended scope, potentially leading to the exfiltration of sensitive secrets from the Consul server host. This vulnerability, CVE-2026-19017, is fixed in Consul 2.0.3 and Consul Enterprise 1.21.17, 1.22.11, and 2.0.3.

Severity

6.8 (Medium)


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

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-19017"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-862"
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    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-07T20:16:50Z",
    "severity": "MODERATE"
  },
  "details": "Consul Community Edition and Consul Enterprise 1.18.21 through 2.0.2 are vulnerable to a partial arbitrary file read when configured to use the Vault Connect CA provider with JWT or AppRole authentication. A privileged attacker with `operator:write` permission may direct Consul to read and forward credential files outside the intended scope, potentially leading to the exfiltration of sensitive secrets from the Consul server host. This vulnerability, CVE-2026-19017, is fixed in Consul 2.0.3 and Consul Enterprise 1.21.17, 1.22.11, and 2.0.3.",
  "id": "GHSA-jgv4-5fjv-3xp7",
  "modified": "2026-08-07T21:30:38Z",
  "published": "2026-08-07T21:30:37Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-19017"
    },
    {
      "type": "WEB",
      "url": "https://discuss.hashicorp.com/t/hcsec-2026-25-multiple-vulnerabilities-impacting-hashicorp-consul/77629"
    }
  ],
  "schema_version": "1.4.0",
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    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ]
}

ubuntu-cve-2026-19017

Vulnerability from osv_ubuntu

Published

2026-08-07 20:16

Modified

2026-08-13 00:02

Summary

Details

Consul Community Edition and Consul Enterprise 1.18.21 through 2.0.2 are vulnerable to a partial arbitrary file read when configured to use the Vault Connect CA provider with JWT or AppRole authentication. A privileged attacker with operator:write permission may direct Consul to read and forward credential files outside the intended scope, potentially leading to the exfiltration of sensitive secrets from the Consul server host. This vulnerability, CVE-2026-19017, is fixed in Consul 2.0.3 and Consul Enterprise 1.21.17, 1.22.11, and 2.0.3.

Severity

6.8 (Medium)


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

N/A (UNKNOWN)


                    
                      medium

References

URL

Type

	https://ubuntu.com/security/CVE-2026-19017	REPORT
	https://www.cve.org/CVERecord?id=CVE-2026-19017	REPORT
	https://discuss.hashicorp.com/t/hcsec-2026-25-mul…	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "consul",
            "binary_version": "0.6.4~dfsg-3"
          },
          {
            "binary_name": "golang-github-hashicorp-consul-dev",
            "binary_version": "0.6.4~dfsg-3"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "consul",
        "purl": "pkg:deb/ubuntu/consul@0.6.4~dfsg-3?arch=source\u0026distro=bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.6.4~dfsg-3"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "consul",
            "binary_version": "1.5.2+dfsg2-14"
          },
          {
            "binary_name": "golang-github-hashicorp-consul-dev",
            "binary_version": "1.5.2+dfsg2-14"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "consul",
        "purl": "pkg:deb/ubuntu/consul@1.5.2+dfsg2-14?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.0.7~dfsg1-5ubuntu1",
        "1.4.4~dfsg1-2ubuntu2",
        "1.5.2+dfsg1-6",
        "1.5.2+dfsg1-10",
        "1.5.2+dfsg1-12",
        "1.5.2+dfsg2-14"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "consul",
            "binary_version": "1.8.7+dfsg1-3"
          },
          {
            "binary_name": "golang-github-hashicorp-consul-dev",
            "binary_version": "1.8.7+dfsg1-3"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "consul",
        "purl": "pkg:deb/ubuntu/consul@1.8.7+dfsg1-3?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.7.4+dfsg1-1",
        "1.8.7+dfsg1-3"
      ]
    }
  ],
  "aliases": [],
  "details": "Consul Community Edition and Consul Enterprise 1.18.21 through 2.0.2 are vulnerable to a partial arbitrary file read when configured to use the Vault Connect CA provider with JWT or AppRole authentication. A privileged attacker with `operator:write` permission may direct Consul to read and forward credential files outside the intended scope, potentially leading to the exfiltration of sensitive secrets from the Consul server host. This vulnerability, CVE-2026-19017, is fixed in Consul 2.0.3 and Consul Enterprise 1.21.17, 1.22.11, and 2.0.3.",
  "id": "UBUNTU-CVE-2026-19017",
  "modified": "2026-08-13T00:02:19Z",
  "published": "2026-08-07T20:16:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-19017"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-19017"
    },
    {
      "type": "REPORT",
      "url": "https://discuss.hashicorp.com/t/hcsec-2026-25-multiple-vulnerabilities-impacting-hashicorp-consul/77629"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2026-19017"
  ]
}

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.

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.

Action not permitted

CVE-2026-19017 (GCVE-0-2026-19017)

FKIE_CVE-2026-19017

GHSA-JGV4-5FJV-3XP7

ubuntu-cve-2026-19017

Vulnerability from osv_ubuntu

Tags

Sightings

Nomenclature