CVE-2026-5061 (GCVE-0-2026-5061)

Vulnerability from cvelistv5 – Published: 2026-05-12 13:58 – Updated: 2026-05-12 15:43
VLAI
Title
Consul-template vulnerable to sandbox path bypass in file helper via a symlink attack
Summary
The consul-template library before version 0.42.0 is vulnerable to a sandbox path bypass in the file template helper that may allow reading an out-of-sandbox file. This vulnerability (CVE-2026-5061) is fixed in consul-template 0.42.0.
Severity
4.7 (Medium)
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-12 15:42 UTC
CWE
  • CWE-59 - Improper Link Resolution Before File Access (Link Following)
Assigner
References
Impacted products
Vendor Product Version CPE status
HashiCorp Tooling Affected: 0.1.0 , < 0.42.0 (semver)
guessed Create a notification for this product.
Credits
This issue was reported to HashiCorp by Mohamed Abdelaal (0xmrma).
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-5061",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-05-12T15:42:51.707805Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-05-12T15:43:01.985Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "platforms": [
            "64 bit",
            "32 bit",
            "x86",
            "ARM",
            "MacOS",
            "Windows",
            "Linux"
          ],
          "product": "Tooling",
          "repo": "https://github.com/hashicorp/consul-template",
          "vendor": "HashiCorp",
          "versions": [
            {
              "lessThan": "0.42.0",
              "status": "affected",
              "version": "0.1.0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "value": "This issue was reported to HashiCorp by Mohamed Abdelaal (0xmrma)."
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cp\u003eThe consul-template library before version 0.42.0 is vulnerable to a sandbox path bypass in the file template helper that may allow reading an out-of-sandbox file. This vulnerability (CVE-2026-5061) is fixed in consul-template 0.42.0.\u003c/p\u003e\u003cbr/\u003e"
            }
          ],
          "value": "The consul-template library before version 0.42.0 is vulnerable to a sandbox path bypass in the file template helper that may allow reading an out-of-sandbox file. This vulnerability (CVE-2026-5061) is fixed in consul-template 0.42.0."
        }
      ],
      "impacts": [
        {
          "capecId": "CAPEC-132",
          "descriptions": [
            {
              "lang": "en",
              "value": "CAPEC-132: Symlink Attack"
            }
          ]
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 4.7,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-59",
              "description": "CWE-59: Improper Link Resolution Before File Access (Link Following)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-12T13:58:20.409Z",
        "orgId": "67fedba0-ff2e-4543-ba5b-aa93e87718cc",
        "shortName": "HashiCorp"
      },
      "references": [
        {
          "url": "https://discuss.hashicorp.com/t/hcsec-2026-12-consul-template-vulnerable-to-sandbox-path-bypass-in-file-helper-through-symlink-attack/77414"
        }
      ],
      "source": {
        "advisory": "HCSEC-2026-12",
        "discovery": "EXTERNAL"
      },
      "title": "Consul-template vulnerable to sandbox path bypass in file helper via a symlink attack"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "67fedba0-ff2e-4543-ba5b-aa93e87718cc",
    "assignerShortName": "HashiCorp",
    "cveId": "CVE-2026-5061",
    "datePublished": "2026-05-12T13:58:20.409Z",
    "dateReserved": "2026-03-27T18:27:28.875Z",
    "dateUpdated": "2026-05-12T15:43:01.985Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-5061",
      "date": "2026-09-22",
      "epss": "0.00151",
      "percentile": "0.04605"
    },
    "nvd": {
      "cve": {
        "affected": [
          {
            "affectedData": [
              {
                "defaultStatus": "unaffected",
                "platforms": [
                  "64 bit",
                  "32 bit",
                  "x86",
                  "ARM",
                  "MacOS",
                  "Windows",
                  "Linux"
                ],
                "product": "Tooling",
                "repo": "https://github.com/hashicorp/consul-template",
                "vendor": "HashiCorp",
                "versions": [
                  {
                    "lessThan": "0.42.0",
                    "status": "affected",
                    "version": "0.1.0",
                    "versionType": "semver"
                  }
                ]
              }
            ],
            "source": "security@hashicorp.com"
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "The consul-template library before version 0.42.0 is vulnerable to a sandbox path bypass in the file template helper that may allow reading an out-of-sandbox file. This vulnerability (CVE-2026-5061) is fixed in consul-template 0.42.0."
          }
        ],
        "id": "CVE-2026-5061",
        "lastModified": "2026-06-17T10:58:22.640",
        "metrics": {
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "HIGH",
                "attackVector": "LOCAL",
                "availabilityImpact": "NONE",
                "baseScore": 4.7,
                "baseSeverity": "MEDIUM",
                "confidentialityImpact": "HIGH",
                "integrityImpact": "NONE",
                "privilegesRequired": "LOW",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N",
                "version": "3.1"
              },
              "exploitabilityScore": 1.0,
              "impactScore": 3.6,
              "source": "security@hashicorp.com",
              "type": "Secondary"
            }
          ],
          "ssvcV203": [
            {
              "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "ssvcData": {
                "id": "CVE-2026-5061",
                "options": [
                  {
                    "exploitation": "none"
                  },
                  {
                    "automatable": "no"
                  },
                  {
                    "technicalImpact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-05-12T15:42:51.707805Z",
                "version": "2.0.3"
              }
            }
          ]
        },
        "published": "2026-05-12T15:16:16.343",
        "references": [
          {
            "source": "security@hashicorp.com",
            "url": "https://discuss.hashicorp.com/t/hcsec-2026-12-consul-template-vulnerable-to-sandbox-path-bypass-in-file-helper-through-symlink-attack/77414"
          }
        ],
        "sourceIdentifier": "security@hashicorp.com",
        "vulnStatus": "Deferred",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-59"
              }
            ],
            "source": "security@hashicorp.com",
            "type": "Secondary"
          }
        ]
      }
    },
    "redhat_vex": {
      "current_release_date": "2026-06-05T19:35:16+00:00",
      "cve": "CVE-2026-5061",
      "id": "CVE-2026-5061",
      "initial_release_date": "2026-01-01T00:00:00+00:00",
      "product_status:known_not_affected": "1",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "Consul-template vulnerable to sandbox path bypass in file helper via a symlink attack",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-5061.json",
      "version": "3"
    },
    "vulnrichment": {
      "containers": {
        "adp": [
          {
            "metrics": [
              {
                "other": {
                  "content": {
                    "id": "CVE-2026-5061",
                    "options": [
                      {
                        "Exploitation": "none"
                      },
                      {
                        "Automatable": "no"
                      },
                      {
                        "Technical Impact": "partial"
                      }
                    ],
                    "role": "CISA Coordinator",
                    "timestamp": "2026-05-12T15:42:51.707805Z",
                    "version": "2.0.3"
                  },
                  "type": "ssvc"
                }
              }
            ],
            "providerMetadata": {
              "dateUpdated": "2026-05-12T15:42:58.140Z",
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP"
            },
            "title": "CISA ADP Vulnrichment"
          }
        ],
        "cna": {
          "affected": [
            {
              "defaultStatus": "unaffected",
              "platforms": [
                "64 bit",
                "32 bit",
                "x86",
                "ARM",
                "MacOS",
                "Windows",
                "Linux"
              ],
              "product": "Tooling",
              "repo": "https://github.com/hashicorp/consul-template",
              "vendor": "HashiCorp",
              "versions": [
                {
                  "lessThan": "0.42.0",
                  "status": "affected",
                  "version": "0.1.0",
                  "versionType": "semver"
                }
              ]
            }
          ],
          "credits": [
            {
              "lang": "en",
              "value": "This issue was reported to HashiCorp by Mohamed Abdelaal (0xmrma)."
            }
          ],
          "descriptions": [
            {
              "lang": "en",
              "supportingMedia": [
                {
                  "base64": false,
                  "type": "text/html",
                  "value": "\u003cp\u003eThe consul-template library before version 0.42.0 is vulnerable to a sandbox path bypass in the file template helper that may allow reading an out-of-sandbox file. This vulnerability (CVE-2026-5061) is fixed in consul-template 0.42.0.\u003c/p\u003e\u003cbr/\u003e"
                }
              ],
              "value": "The consul-template library before version 0.42.0 is vulnerable to a sandbox path bypass in the file template helper that may allow reading an out-of-sandbox file. This vulnerability (CVE-2026-5061) is fixed in consul-template 0.42.0."
            }
          ],
          "impacts": [
            {
              "capecId": "CAPEC-132",
              "descriptions": [
                {
                  "lang": "en",
                  "value": "CAPEC-132: Symlink Attack"
                }
              ]
            }
          ],
          "metrics": [
            {
              "cvssV3_1": {
                "baseScore": 4.7,
                "baseSeverity": "MEDIUM",
                "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N",
                "version": "3.1"
              },
              "format": "CVSS",
              "scenarios": [
                {
                  "lang": "en",
                  "value": "GENERAL"
                }
              ]
            }
          ],
          "problemTypes": [
            {
              "descriptions": [
                {
                  "cweId": "CWE-59",
                  "description": "CWE-59: Improper Link Resolution Before File Access (Link Following)",
                  "lang": "en",
                  "type": "CWE"
                }
              ]
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2026-05-12T13:58:20.409Z",
            "orgId": "67fedba0-ff2e-4543-ba5b-aa93e87718cc",
            "shortName": "HashiCorp"
          },
          "references": [
            {
              "url": "https://discuss.hashicorp.com/t/hcsec-2026-12-consul-template-vulnerable-to-sandbox-path-bypass-in-file-helper-through-symlink-attack/77414"
            }
          ],
          "source": {
            "advisory": "HCSEC-2026-12",
            "discovery": "EXTERNAL"
          },
          "title": "Consul-template vulnerable to sandbox path bypass in file helper via a symlink attack"
        }
      },
      "cveMetadata": {
        "assignerOrgId": "67fedba0-ff2e-4543-ba5b-aa93e87718cc",
        "assignerShortName": "HashiCorp",
        "cveId": "CVE-2026-5061",
        "datePublished": "2026-05-12T13:58:20.409Z",
        "dateReserved": "2026-03-27T18:27:28.875Z",
        "dateUpdated": "2026-05-12T15:43:01.985Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





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.



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.