Vulnerability-Lookup

PYSEC-2026-3747

Vulnerability from pysec - Published: 2026-08-27 17:20 - Updated: 2026-09-02 08:34

Details

Reflected XSS in Netron versions <=9.1.2 on desktop application through unsanitized node names allows an attacker to hide certain nodes, perform port scanning or abuse a Chrome n-day to achieve Remote Code Execution.

Severity

5.0 (Medium)


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

Impacted products

Name	purl
netron	pkg:pypi/netron

Aliases

CVE-2026-79720

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {},
      "package": {
        "ecosystem": "PyPI",
        "name": "netron",
        "purl": "pkg:pypi/netron"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "9.1.3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "7.8.6",
        "7.8.9",
        "7.9.0",
        "7.9.1",
        "7.9.2",
        "7.9.3",
        "7.9.4",
        "7.9.5",
        "7.9.6",
        "7.9.7",
        "7.9.8",
        "7.9.9",
        "8.0.0",
        "8.0.1",
        "8.0.2",
        "8.0.3",
        "8.0.4",
        "8.0.5",
        "8.0.6",
        "8.0.7",
        "8.0.8",
        "8.0.9",
        "8.1.0",
        "8.1.1",
        "8.1.2",
        "8.1.3",
        "8.1.4",
        "8.1.5",
        "8.1.6",
        "8.1.7",
        "8.1.8",
        "8.1.9",
        "8.2.0",
        "8.2.1",
        "8.2.2",
        "8.2.3",
        "8.2.4",
        "8.2.5",
        "8.2.6",
        "8.2.7",
        "8.2.8",
        "8.2.9",
        "8.3.0",
        "8.3.1",
        "8.3.2",
        "8.3.3",
        "8.3.4",
        "8.3.5",
        "8.3.6",
        "8.3.7",
        "8.3.8",
        "8.3.9",
        "8.4.0",
        "8.4.1",
        "8.4.2",
        "8.4.3",
        "8.4.4",
        "8.4.5",
        "8.4.6",
        "8.4.7",
        "8.4.8",
        "8.4.9",
        "8.5.0",
        "8.5.1",
        "8.5.2",
        "8.5.3",
        "8.5.4",
        "8.5.5",
        "8.5.6",
        "8.5.7",
        "8.5.8",
        "8.5.9",
        "8.6.0",
        "8.6.1",
        "8.6.2",
        "8.6.3",
        "8.6.4",
        "8.6.5",
        "8.6.6",
        "8.6.7",
        "8.6.8",
        "8.6.9",
        "8.7.0",
        "8.7.1",
        "8.7.2",
        "8.7.3",
        "8.7.4",
        "8.7.5",
        "8.7.6",
        "8.7.7",
        "8.7.8",
        "8.7.9",
        "8.8.0",
        "8.8.1",
        "8.8.2",
        "8.8.3",
        "8.8.4",
        "8.8.5",
        "8.8.6",
        "8.8.8",
        "8.8.9",
        "8.9.0",
        "8.9.1",
        "8.9.2",
        "8.9.3",
        "8.9.4",
        "8.9.5",
        "8.9.6",
        "8.9.7",
        "8.9.8",
        "8.9.9",
        "9.0.0",
        "9.0.1",
        "9.0.2",
        "9.0.3",
        "9.0.4",
        "9.0.5",
        "9.0.6",
        "9.0.7",
        "9.0.8",
        "9.0.9",
        "9.1.0",
        "9.1.1",
        "9.1.2"
      ]
    }
  ],
  "aliases": [
    "CVE-2026-79720"
  ],
  "details": "Reflected XSS in Netron versions \u003c=9.1.2 on desktop application through unsanitized node names allows an attacker to hide certain nodes, perform port scanning or abuse a Chrome n-day to achieve Remote Code Execution.",
  "id": "PYSEC-2026-3747",
  "modified": "2026-09-02T08:34:35.212417Z",
  "published": "2026-08-27T17:20:49.027Z",
  "references": [
    {
      "type": "FIX",
      "url": "https://github.com/lutzroeder/netron/commit/cd14bad8c9132b1aaf1d197fe61925575f194f00"
    },
    {
      "type": "EVIDENCE",
      "url": "https://www.hiddenlayer.com/sai-security-advisory/2026-08-netron"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2026-79720 (GCVE-0-2026-79720)

Vulnerability from cvelistv5 – Published: 2026-08-27 16:40 – Updated: 2026-08-27 18:49

Summary

Severity

6.8 (Medium)


                        
                          CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:N/VA:N/SC:L/SI:N/SA:N

SSVC

Exploitation: poc Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-27 18:49 UTC

CWE

CWE-79 - Improper neutralization of input during web page generation ('cross-site scripting')

Assigner

HiddenLayer mitre root

References

2 references

URL	Tags
https://github.com/lutzroeder/netron/commit/cd14b…
https://www.hiddenlayer.com/sai-security-advisory…

Impacted products

1 product

Vendor	Product	Version
Netron	Netron	Affected: * , ≤ 9.1.2 (semver)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-79720",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-08-27T18:49:09.074734Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-08-27T18:49:38.838Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "references": [
          {
            "tags": [
              "exploit"
            ],
            "url": "https://www.hiddenlayer.com/sai-security-advisory/2026-08-netron"
          }
        ],
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "packageName": "netron",
          "product": "Netron",
          "repo": "https://github.com/lutzroeder/netron",
          "vendor": "Netron",
          "versions": [
            {
              "lessThanOrEqual": "9.1.2",
              "status": "affected",
              "version": "*",
              "versionType": "semver"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "Reflected XSS in Netron versions \u0026lt;=9.1.2 on desktop application through unsanitized node names allows an attacker to hide certain nodes, perform port scanning or abuse a Chrome n-day to achieve Remote Code Execution."
            }
          ],
          "value": "Reflected XSS in Netron versions \u003c=9.1.2 on desktop application through unsanitized node names allows an attacker to hide certain nodes, perform port scanning or abuse a Chrome n-day to achieve Remote Code Execution."
        }
      ],
      "impacts": [
        {
          "capecId": "CAPEC-591",
          "descriptions": [
            {
              "lang": "en",
              "value": "CAPEC-591 Reflected XSS"
            }
          ]
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "Automatable": "NOT_DEFINED",
            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "LOCAL",
            "baseScore": 6.8,
            "baseSeverity": "MEDIUM",
            "exploitMaturity": "NOT_DEFINED",
            "privilegesRequired": "NONE",
            "providerUrgency": "NOT_DEFINED",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "LOW",
            "subIntegrityImpact": "NONE",
            "userInteraction": "PASSIVE",
            "valueDensity": "NOT_DEFINED",
            "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:N/VA:N/SC:L/SI:N/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "NONE",
            "vulnConfidentialityImpact": "HIGH",
            "vulnIntegrityImpact": "NONE",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-79",
              "description": "CWE-79 Improper neutralization of input during web page generation (\u0027cross-site scripting\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-27T16:40:09.913Z",
        "orgId": "6f8de1f0-f67e-45a6-b68f-98777fdb759c",
        "shortName": "HiddenLayer"
      },
      "references": [
        {
          "url": "https://github.com/lutzroeder/netron/commit/cd14bad8c9132b1aaf1d197fe61925575f194f00"
        },
        {
          "url": "https://www.hiddenlayer.com/sai-security-advisory/2026-08-netron"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "x_generator": {
        "engine": "Vulnogram 1.0.5"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "6f8de1f0-f67e-45a6-b68f-98777fdb759c",
    "assignerShortName": "HiddenLayer",
    "cveId": "CVE-2026-79720",
    "datePublished": "2026-08-27T16:40:09.913Z",
    "dateReserved": "2026-08-25T13:43:20.741Z",
    "dateUpdated": "2026-08-27T18:49:38.838Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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

PYSEC-2026-3747

CVE-2026-79720 (GCVE-0-2026-79720)

Tags

Sightings

Nomenclature