CVE-2026-66760 (GCVE-0-2026-66760)

Vulnerability from cvelistv5 – Published: 2026-08-11 00:17 – Updated: 2026-08-11 14:29
VLAI
Title
Multiple vulnerabilities in SAP Business AI Platform (Approuter)
Summary
SAP Approuter does not correctly validate client certificates in certain callback flows. An attacker with low privileges, holding a certificate from the same trusted authority with matching subject values, could bypass the identity check. This complexity makes the attack difficult to execute. Successful exploitation could allow impersonation of a trusted internal component, resulting in a high impact on integrity and a low impact on confidentiality and availability.
Severity
6.4 (Medium)
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:H/A:L
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-11 13:17 UTC
CWE
  • CWE-295 - Improper Certificate Validation
Assigner
sap CNA under the mitre root
CNA scorecard C 65/100 over 145 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
SAP_SE SAP Business AI Platform (Approuter) Affected: SAP Approuter node.js package < 23.0.0
guessed Create a notification for this product.
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-66760",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-08-11T13:17:27.251606Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-08-11T14:29:29.753Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "SAP Business AI Platform (Approuter)",
          "vendor": "SAP_SE",
          "versions": [
            {
              "status": "affected",
              "version": "SAP Approuter node.js package \u003c 23.0.0"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cp\u003eSAP Approuter does not correctly validate client certificates in certain callback flows. An attacker with low privileges, holding a certificate from the same trusted authority with matching subject values, could bypass the identity check. This complexity makes the attack difficult to execute. Successful exploitation could allow impersonation of a trusted internal component, resulting in a high impact on integrity and a low impact on confidentiality and availability.\u003c/p\u003e"
            }
          ],
          "value": "SAP Approuter does not correctly validate client certificates in certain callback flows. An attacker with low privileges, holding a certificate from the same trusted authority with matching subject values, could bypass the identity check. This complexity makes the attack difficult to execute. Successful exploitation could allow impersonation of a trusted internal component, resulting in a high impact on integrity and a low impact on confidentiality and availability."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 6.4,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:H/A:L",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-295",
              "description": "CWE-295: Improper Certificate Validation",
              "lang": "eng",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-11T00:17:28.325Z",
        "orgId": "e4686d1a-f260-4930-ac4c-2f5c992778dd",
        "shortName": "sap"
      },
      "references": [
        {
          "url": "https://me.sap.com/notes/3786038"
        },
        {
          "url": "https://url.sap/sapsecuritypatchday"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "Multiple vulnerabilities in SAP Business AI Platform (Approuter)",
      "x_generator": {
        "engine": "Vulnogram 1.0.4"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "e4686d1a-f260-4930-ac4c-2f5c992778dd",
    "assignerShortName": "sap",
    "cveId": "CVE-2026-66760",
    "datePublished": "2026-08-11T00:17:28.325Z",
    "dateReserved": "2026-07-27T17:33:40.733Z",
    "dateUpdated": "2026-08-11T14:29:29.753Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-66760",
      "date": "2026-11-10",
      "epss": "0.00181",
      "percentile": "0.07723"
    },
    "nvd": {
      "cve": {
        "affected": [
          {
            "affectedData": [
              {
                "defaultStatus": "unaffected",
                "product": "SAP Business AI Platform (Approuter)",
                "vendor": "SAP_SE",
                "versions": [
                  {
                    "status": "affected",
                    "version": "SAP Approuter node.js package \u003c 23.0.0"
                  }
                ]
              }
            ],
            "source": "cna@sap.com"
          }
        ],
        "configurations": [
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:a:sap:approuter:*:*:*:*:*:node.js:*:*",
                    "matchCriteriaId": "BC1312BC-17DB-45F4-864B-606D46FFFDEE",
                    "versionEndExcluding": "23.0.0",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "SAP Approuter does not correctly validate client certificates in certain callback flows. An attacker with low privileges, holding a certificate from the same trusted authority with matching subject values, could bypass the identity check. This complexity makes the attack difficult to execute. Successful exploitation could allow impersonation of a trusted internal component, resulting in a high impact on integrity and a low impact on confidentiality and availability."
          },
          {
            "lang": "es",
            "value": "SAP Approuter no valida correctamente los certificados de cliente en ciertos flujos de devoluci\u00f3n de llamada. Un atacante con privilegios bajos, que posee un certificado de la misma autoridad de confianza con valores de asunto coincidentes, podr\u00eda eludir la verificaci\u00f3n de identidad. Esta complejidad hace que el ataque sea dif\u00edcil de ejecutar. La explotaci\u00f3n exitosa podr\u00eda permitir la suplantaci\u00f3n de un componente interno de confianza, lo que resultar\u00eda en un alto impacto en la integridad y un bajo impacto en la confidencialidad y la disponibilidad."
          }
        ],
        "id": "CVE-2026-66760",
        "lastModified": "2026-10-24T16:10:00.153",
        "metrics": {
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "HIGH",
                "attackVector": "NETWORK",
                "availabilityImpact": "LOW",
                "baseScore": 6.4,
                "baseSeverity": "MEDIUM",
                "confidentialityImpact": "LOW",
                "integrityImpact": "HIGH",
                "privilegesRequired": "LOW",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:H/A:L",
                "version": "3.1"
              },
              "exploitabilityScore": 1.6,
              "impactScore": 4.7,
              "source": "cna@sap.com",
              "type": "Secondary"
            }
          ],
          "ssvcV203": [
            {
              "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "ssvcData": {
                "id": "CVE-2026-66760",
                "options": [
                  {
                    "exploitation": "none"
                  },
                  {
                    "automatable": "no"
                  },
                  {
                    "technicalImpact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-08-11T13:17:27.251606Z",
                "version": "2.0.3"
              }
            }
          ]
        },
        "published": "2026-08-11T01:17:22.757",
        "references": [
          {
            "source": "cna@sap.com",
            "tags": [
              "Permissions Required"
            ],
            "url": "https://me.sap.com/notes/3786038"
          },
          {
            "source": "cna@sap.com",
            "tags": [
              "Vendor Advisory"
            ],
            "url": "https://url.sap/sapsecuritypatchday"
          }
        ],
        "sourceIdentifier": "cna@sap.com",
        "vulnStatus": "Analyzed",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-295"
              }
            ],
            "source": "cna@sap.com",
            "type": "Secondary"
          }
        ]
      }
    },
    "vulnrichment": {
      "containers": {
        "adp": [
          {
            "metrics": [
              {
                "other": {
                  "content": {
                    "id": "CVE-2026-66760",
                    "options": [
                      {
                        "Exploitation": "none"
                      },
                      {
                        "Automatable": "no"
                      },
                      {
                        "Technical Impact": "partial"
                      }
                    ],
                    "role": "CISA Coordinator",
                    "timestamp": "2026-08-11T13:17:27.251606Z",
                    "version": "2.0.3"
                  },
                  "type": "ssvc"
                }
              }
            ],
            "providerMetadata": {
              "dateUpdated": "2026-08-11T14:29:25.229Z",
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP"
            },
            "title": "CISA ADP Vulnrichment"
          }
        ],
        "cna": {
          "affected": [
            {
              "defaultStatus": "unaffected",
              "product": "SAP Business AI Platform (Approuter)",
              "vendor": "SAP_SE",
              "versions": [
                {
                  "status": "affected",
                  "version": "SAP Approuter node.js package \u003c 23.0.0"
                }
              ]
            }
          ],
          "descriptions": [
            {
              "lang": "en",
              "supportingMedia": [
                {
                  "base64": false,
                  "type": "text/html",
                  "value": "\u003cp\u003eSAP Approuter does not correctly validate client certificates in certain callback flows. An attacker with low privileges, holding a certificate from the same trusted authority with matching subject values, could bypass the identity check. This complexity makes the attack difficult to execute. Successful exploitation could allow impersonation of a trusted internal component, resulting in a high impact on integrity and a low impact on confidentiality and availability.\u003c/p\u003e"
                }
              ],
              "value": "SAP Approuter does not correctly validate client certificates in certain callback flows. An attacker with low privileges, holding a certificate from the same trusted authority with matching subject values, could bypass the identity check. This complexity makes the attack difficult to execute. Successful exploitation could allow impersonation of a trusted internal component, resulting in a high impact on integrity and a low impact on confidentiality and availability."
            }
          ],
          "metrics": [
            {
              "cvssV3_1": {
                "attackComplexity": "HIGH",
                "attackVector": "NETWORK",
                "availabilityImpact": "LOW",
                "baseScore": 6.4,
                "baseSeverity": "MEDIUM",
                "confidentialityImpact": "LOW",
                "integrityImpact": "HIGH",
                "privilegesRequired": "LOW",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:H/A:L",
                "version": "3.1"
              },
              "format": "CVSS",
              "scenarios": [
                {
                  "lang": "en",
                  "value": "GENERAL"
                }
              ]
            }
          ],
          "problemTypes": [
            {
              "descriptions": [
                {
                  "cweId": "CWE-295",
                  "description": "CWE-295: Improper Certificate Validation",
                  "lang": "eng",
                  "type": "CWE"
                }
              ]
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2026-08-11T00:17:28.325Z",
            "orgId": "e4686d1a-f260-4930-ac4c-2f5c992778dd",
            "shortName": "sap"
          },
          "references": [
            {
              "url": "https://me.sap.com/notes/3786038"
            },
            {
              "url": "https://url.sap/sapsecuritypatchday"
            }
          ],
          "source": {
            "discovery": "UNKNOWN"
          },
          "title": "Multiple vulnerabilities in SAP Business AI Platform (Approuter)",
          "x_generator": {
            "engine": "Vulnogram 1.0.4"
          }
        }
      },
      "cveMetadata": {
        "assignerOrgId": "e4686d1a-f260-4930-ac4c-2f5c992778dd",
        "assignerShortName": "sap",
        "cveId": "CVE-2026-66760",
        "datePublished": "2026-08-11T00:17:28.325Z",
        "dateReserved": "2026-07-27T17:33:40.733Z",
        "dateUpdated": "2026-08-11T14:29:29.753Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




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
How durations are calculated

Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.

Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.

Loading timeline…




    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.