CVE-2026-49091 (GCVE-0-2026-49091)

Vulnerability from cvelistv5 – Published: 2026-07-01 17:21 – Updated: 2026-07-02 03:57
VLAI
Title
Improper Output Neutralization for Logs in Kibana Leading to Log Injection
Summary
Improper Output Neutralization for Logs (CWE-117) in Kibana can lead to log injection via Log Injection-Tampering-Forging (CAPEC-93). An attacker can supply specially crafted input that is written to log files without proper neutralization. When the log files are subsequently viewed in a terminal that interprets control sequences, the injected content may alter the displayed log data.
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-01 00:00 UTC
CWE
  • CWE-116 - Improper Encoding or Escaping of Output
Assigner
elastic CNA under the mitre root
CNA scorecard C 69/100 over 161 records in the last 180 days details
Impacted products
Vendor Product Version CPE status
Elastic Kibana Affected: 8.0.0 , ≤ 8.11.0 (semver)
Affected: 7.0.0 , ≤ 7.17.14 (semver)
guessed Create a notification for this product.
Show details on NVD website

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-49091",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-07-01T00:00:00+00:00",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-07-02T03:57:31.736Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Kibana",
          "vendor": "Elastic",
          "versions": [
            {
              "lessThanOrEqual": "8.11.0",
              "status": "affected",
              "version": "8.0.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.17.14",
              "status": "affected",
              "version": "7.0.0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cp\u003eImproper Output Neutralization for Logs (CWE-117) in Kibana can lead to log injection via Log Injection-Tampering-Forging (CAPEC-93). An attacker can supply specially crafted input that is written to log files without proper neutralization. When the log files are subsequently viewed in a terminal that interprets control sequences, the injected content may alter the displayed log data.\u003c/p\u003e"
            }
          ],
          "value": "Improper Output Neutralization for Logs (CWE-117) in Kibana can lead to log injection via Log Injection-Tampering-Forging (CAPEC-93). An attacker can supply specially crafted input that is written to log files without proper neutralization. When the log files are subsequently viewed in a terminal that interprets control sequences, the injected content may alter the displayed log data."
        }
      ],
      "impacts": [
        {
          "capecId": "CAPEC-93",
          "descriptions": [
            {
              "lang": "en",
              "value": "CAPEC-93 Log Injection-Tampering-Forging"
            }
          ]
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 8,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "CHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-116",
              "description": "CWE-116 Improper Encoding or Escaping of Output",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-07-01T17:21:28.544Z",
        "orgId": "271b6943-45a9-4f3a-ab4e-976f3fa05b5a",
        "shortName": "elastic"
      },
      "references": [
        {
          "url": "https://discuss.elastic.co/t/kibana-7-17-15-8-11-1-security-update-esa-2026-53"
        }
      ],
      "source": {
        "discovery": "Elastic"
      },
      "title": "Improper Output Neutralization for Logs in Kibana Leading to Log Injection",
      "x_generator": {
        "engine": "Elastic CVE Publisher 0.0.1"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "271b6943-45a9-4f3a-ab4e-976f3fa05b5a",
    "assignerShortName": "elastic",
    "cveId": "CVE-2026-49091",
    "datePublished": "2026-07-01T17:21:28.544Z",
    "dateReserved": "2026-05-27T11:31:33.582Z",
    "dateUpdated": "2026-07-02T03:57:31.736Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-49091",
      "date": "2026-11-01",
      "epss": "0.00317",
      "percentile": "0.24664"
    },
    "nvd": {
      "cve": {
        "affected": [
          {
            "affectedData": [
              {
                "defaultStatus": "unaffected",
                "product": "Kibana",
                "vendor": "Elastic",
                "versions": [
                  {
                    "lessThanOrEqual": "8.11.0",
                    "status": "affected",
                    "version": "8.0.0",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "7.17.14",
                    "status": "affected",
                    "version": "7.0.0",
                    "versionType": "semver"
                  }
                ]
              }
            ],
            "source": "security@elastic.co"
          }
        ],
        "configurations": [
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:a:elastic:kibana:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "A25080F6-A136-4D8F-BA71-B48402A1BC7E",
                    "versionEndExcluding": "7.17.15",
                    "versionStartIncluding": "7.0.0",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:elastic:kibana:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "EDC4443D-DC1A-41CB-A1BC-817A15246F81",
                    "versionEndExcluding": "8.11.1",
                    "versionStartIncluding": "8.0.0",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "Improper Output Neutralization for Logs (CWE-117) in Kibana can lead to log injection via Log Injection-Tampering-Forging (CAPEC-93). An attacker can supply specially crafted input that is written to log files without proper neutralization. When the log files are subsequently viewed in a terminal that interprets control sequences, the injected content may alter the displayed log data."
          },
          {
            "lang": "es",
            "value": "La neutralizaci\u00f3n inadecuada de la salida para logs (CWE-117) en Kibana puede conducir a la inyecci\u00f3n de logs a trav\u00e9s de Inyecci\u00f3n-Manipulaci\u00f3n-Falsificaci\u00f3n de Logs (CAPEC-93). Un atacante puede suministrar una entrada especialmente dise\u00f1ada que se escribe en archivos de logs sin la neutralizaci\u00f3n adecuada. Cuando los archivos de logs se visualizan posteriormente en una terminal que interpreta secuencias de control, el contenido inyectado puede alterar los datos de logs mostrados."
          }
        ],
        "id": "CVE-2026-49091",
        "lastModified": "2026-10-25T17:10:00.197",
        "metrics": {
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "HIGH",
                "attackVector": "NETWORK",
                "availabilityImpact": "HIGH",
                "baseScore": 8.0,
                "baseSeverity": "HIGH",
                "confidentialityImpact": "HIGH",
                "integrityImpact": "HIGH",
                "privilegesRequired": "LOW",
                "scope": "CHANGED",
                "userInteraction": "REQUIRED",
                "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H",
                "version": "3.1"
              },
              "exploitabilityScore": 1.3,
              "impactScore": 6.0,
              "source": "security@elastic.co",
              "type": "Secondary"
            }
          ],
          "ssvcV203": [
            {
              "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "ssvcData": {
                "id": "CVE-2026-49091",
                "options": [
                  {
                    "exploitation": "none"
                  },
                  {
                    "automatable": "no"
                  },
                  {
                    "technicalImpact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-07-01T00:00:00+00:00",
                "version": "2.0.3"
              }
            }
          ]
        },
        "published": "2026-07-01T18:16:34.040",
        "references": [
          {
            "source": "security@elastic.co",
            "tags": [
              "Vendor Advisory",
              "Mitigation"
            ],
            "url": "https://discuss.elastic.co/t/kibana-7-17-15-8-11-1-security-update-esa-2026-53"
          }
        ],
        "sourceIdentifier": "security@elastic.co",
        "vulnStatus": "Analyzed",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-116"
              }
            ],
            "source": "security@elastic.co",
            "type": "Secondary"
          }
        ]
      }
    },
    "vulnrichment": {
      "containers": {
        "adp": [
          {
            "metrics": [
              {
                "other": {
                  "content": {
                    "id": "CVE-2026-49091",
                    "options": [
                      {
                        "Exploitation": "none"
                      },
                      {
                        "Automatable": "no"
                      },
                      {
                        "Technical Impact": "total"
                      }
                    ],
                    "role": "CISA Coordinator",
                    "timestamp": "2026-07-01T17:56:53.232291Z",
                    "version": "2.0.3"
                  },
                  "type": "ssvc"
                }
              }
            ],
            "providerMetadata": {
              "dateUpdated": "2026-07-01T17:57:00.555Z",
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP"
            },
            "title": "CISA ADP Vulnrichment"
          }
        ],
        "cna": {
          "affected": [
            {
              "defaultStatus": "unaffected",
              "product": "Kibana",
              "vendor": "Elastic",
              "versions": [
                {
                  "lessThanOrEqual": "8.11.0",
                  "status": "affected",
                  "version": "8.0.0",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "7.17.14",
                  "status": "affected",
                  "version": "7.0.0",
                  "versionType": "semver"
                }
              ]
            }
          ],
          "descriptions": [
            {
              "lang": "en",
              "supportingMedia": [
                {
                  "base64": false,
                  "type": "text/html",
                  "value": "\u003cp\u003eImproper Output Neutralization for Logs (CWE-117) in Kibana can lead to log injection via Log Injection-Tampering-Forging (CAPEC-93). An attacker can supply specially crafted input that is written to log files without proper neutralization. When the log files are subsequently viewed in a terminal that interprets control sequences, the injected content may alter the displayed log data.\u003c/p\u003e"
                }
              ],
              "value": "Improper Output Neutralization for Logs (CWE-117) in Kibana can lead to log injection via Log Injection-Tampering-Forging (CAPEC-93). An attacker can supply specially crafted input that is written to log files without proper neutralization. When the log files are subsequently viewed in a terminal that interprets control sequences, the injected content may alter the displayed log data."
            }
          ],
          "impacts": [
            {
              "capecId": "CAPEC-93",
              "descriptions": [
                {
                  "lang": "en",
                  "value": "CAPEC-93 Log Injection-Tampering-Forging"
                }
              ]
            }
          ],
          "metrics": [
            {
              "cvssV3_1": {
                "attackComplexity": "HIGH",
                "attackVector": "NETWORK",
                "availabilityImpact": "HIGH",
                "baseScore": 8,
                "baseSeverity": "HIGH",
                "confidentialityImpact": "HIGH",
                "integrityImpact": "HIGH",
                "privilegesRequired": "LOW",
                "scope": "CHANGED",
                "userInteraction": "REQUIRED",
                "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H",
                "version": "3.1"
              },
              "format": "CVSS",
              "scenarios": [
                {
                  "lang": "en",
                  "value": "GENERAL"
                }
              ]
            }
          ],
          "problemTypes": [
            {
              "descriptions": [
                {
                  "cweId": "CWE-116",
                  "description": "CWE-116 Improper Encoding or Escaping of Output",
                  "lang": "en",
                  "type": "CWE"
                }
              ]
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2026-07-01T17:21:28.544Z",
            "orgId": "271b6943-45a9-4f3a-ab4e-976f3fa05b5a",
            "shortName": "elastic"
          },
          "references": [
            {
              "url": "https://discuss.elastic.co/t/kibana-7-17-15-8-11-1-security-update-esa-2026-53"
            }
          ],
          "source": {
            "discovery": "Elastic"
          },
          "title": "Improper Output Neutralization for Logs in Kibana Leading to Log Injection",
          "x_generator": {
            "engine": "Elastic CVE Publisher 0.0.1"
          }
        }
      },
      "cveMetadata": {
        "assignerOrgId": "271b6943-45a9-4f3a-ab4e-976f3fa05b5a",
        "assignerShortName": "elastic",
        "cveId": "CVE-2026-49091",
        "datePublished": "2026-07-01T17:21:28.544Z",
        "dateReserved": "2026-05-27T11:31:33.582Z",
        "dateUpdated": "2026-07-02T03:57:31.736Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.


Loading…

Loading…

Loading…

Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.

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.
Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

JSON
Events included in the timeline

Loading timeline…


    Loading…

    Loading…

    Loading…

    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.