Vulnerability-Lookup

GHSA-GWHC-VPRP-GFCG

Vulnerability from github – Published: 2026-07-26 15:30 – Updated: 2026-07-26 15:30

Details

NoteGen before 0.32.0 renders AI chat responses with markdown-it configured with html:true and injects the result into the DOM via dangerouslySetInnerHTML in chat-preview, without HTML sanitization and with CSP set to null. Attacker-controlled content that reaches the model prompt (for example a malicious skill REFERENCE.md that instructs the model to emit HTML) can cause the model response to include executable markup such as an img onerror handler. When the user views the chat response, that markup runs as JavaScript in the privileged Tauri webview, enabling arbitrary script execution in the application context (cross-site scripting).

Severity

8.1 (High)


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

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-17496"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-79"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-07-26T15:16:27Z",
    "severity": "HIGH"
  },
  "details": "NoteGen before 0.32.0 renders AI chat responses with markdown-it configured with html:true and injects the result into the DOM via dangerouslySetInnerHTML in chat-preview, without HTML sanitization and with CSP set to null. Attacker-controlled content that reaches the model prompt (for example a malicious skill REFERENCE.md that instructs the model to emit HTML) can cause the model response to include executable markup such as an img onerror handler. When the user views the chat response, that markup runs as JavaScript in the privileged Tauri webview, enabling arbitrary script execution in the application context (cross-site scripting).",
  "id": "GHSA-gwhc-vprp-gfcg",
  "modified": "2026-07-26T15:30:24Z",
  "published": "2026-07-26T15:30:24Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-17496"
    },
    {
      "type": "WEB",
      "url": "https://github.com/codexu/note-gen/commit/ae3ba948c41d8a74b4a20f4c6f26fcdda2002298"
    },
    {
      "type": "WEB",
      "url": "https://github.com/codexu/note-gen"
    },
    {
      "type": "WEB",
      "url": "https://github.com/codexu/note-gen/releases/tag/note-gen-v0.32.0"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2026-17496 (GCVE-0-2026-17496)

Vulnerability from cvelistv5 – Published: 2026-07-26 14:33 – Updated: 2026-07-26 14:33

Title

NoteGen chat preview XSS via unsanitized AI/skill HTML rendering

Summary

Severity

8.1 (High)


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

CWE

CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Assigner

JFROG

References

3 references

URL	Tags
https://github.com/codexu/note-gen/commit/ae3ba94…	patch
https://github.com/codexu/note-gen/releases/tag/n…	vendor-advisory
https://github.com/codexu/note-gen	product

Impacted products

1 product

Vendor	Product	Version
codexu	NoteGen	Affected: 0 , < 0.32.0 (semver)

Credits

Yuval Moravchick JFrog Security Research

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
        {
          "collectionURL": "https://github.com/codexu/note-gen",
          "defaultStatus": "unaffected",
          "packageName": "note-gen",
          "product": "NoteGen",
          "programFiles": [
            "src/app/core/main/chat/chat-preview.tsx"
          ],
          "repo": "git://github.com/codexu/note-gen",
          "vendor": "codexu",
          "versions": [
            {
              "lessThan": "0.32.0",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "configurations": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cp\u003eAffects the NoteGen desktop application on a default installation. Exploitation requires user interaction to install or otherwise load attacker-influenced skill/content and to view a chat response that includes the malicious HTML. No non-default configuration is required; CSP is null in affected builds.\u003c/p\u003e"
            }
          ],
          "value": "Affects the NoteGen desktop application on a default installation. Exploitation requires user interaction to install or otherwise load attacker-influenced skill/content and to view a chat response that includes the malicious HTML. No non-default configuration is required; CSP is null in affected builds."
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Yuval Moravchick"
        },
        {
          "lang": "en",
          "type": "coordinator",
          "value": "JFrog Security Research"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cp\u003eNoteGen before 0.32.0 renders AI chat responses with markdown-it configured with html:true and injects the result into the DOM via dangerouslySetInnerHTML in chat-preview, without HTML sanitization and with CSP set to null. Attacker-controlled content that reaches the model prompt (for example a malicious skill REFERENCE.md that instructs the model to emit HTML) can cause the model response to include executable markup such as an img onerror handler. When the user views the chat response, that markup runs as JavaScript in the privileged Tauri webview, enabling arbitrary script execution in the application context (cross-site scripting).\u003c/p\u003e"
            }
          ],
          "value": "NoteGen before 0.32.0 renders AI chat responses with markdown-it configured with html:true and injects the result into the DOM via dangerouslySetInnerHTML in chat-preview, without HTML sanitization and with CSP set to null. Attacker-controlled content that reaches the model prompt (for example a malicious skill REFERENCE.md that instructs the model to emit HTML) can cause the model response to include executable markup such as an img onerror handler. When the user views the chat response, that markup runs as JavaScript in the privileged Tauri webview, enabling arbitrary script execution in the application context (cross-site scripting)."
        }
      ],
      "impacts": [
        {
          "capecId": "CAPEC-63",
          "descriptions": [
            {
              "lang": "en",
              "value": "CAPEC-63 Cross-Site Scripting (XSS)"
            }
          ]
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 8.1,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N",
            "version": "3.1"
          },
          "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": "2026-07-26T14:33:02.602Z",
        "orgId": "48a46f29-ae42-4e1d-90dd-c1676c1e5e6d",
        "shortName": "JFROG"
      },
      "references": [
        {
          "name": "Fix: chat rendering moved to Streamdown",
          "tags": [
            "patch"
          ],
          "url": "https://github.com/codexu/note-gen/commit/ae3ba948c41d8a74b4a20f4c6f26fcdda2002298"
        },
        {
          "name": "NoteGen v0.32.0 release",
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://github.com/codexu/note-gen/releases/tag/note-gen-v0.32.0"
        },
        {
          "name": "NoteGen repository",
          "tags": [
            "product"
          ],
          "url": "https://github.com/codexu/note-gen"
        }
      ],
      "solutions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cp\u003eUpgrade to NoteGen 0.32.0 or later. The fix replaces unsanitized markdown-it HTML injection in chat preview with Streamdown-based rendering that hardens/sanitizes untrusted HTML in model output.\u003c/p\u003e"
            }
          ],
          "value": "Upgrade to NoteGen 0.32.0 or later. The fix replaces unsanitized markdown-it HTML injection in chat preview with Streamdown-based rendering that hardens/sanitizes untrusted HTML in model output."
        }
      ],
      "source": {
        "discovery": "EXTERNAL"
      },
      "timeline": [
        {
          "lang": "en",
          "time": "2026-06-08T00:00:00.000Z",
          "value": "Vulnerability discovered and PoC verified"
        },
        {
          "lang": "en",
          "time": "2026-07-20T00:00:00.000Z",
          "value": "Fix released in NoteGen v0.32.0 (Streamdown chat rendering)"
        }
      ],
      "title": "NoteGen chat preview XSS via unsanitized AI/skill HTML rendering",
      "x_generator": {
        "engine": "Vulnogram 1.0.4"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "48a46f29-ae42-4e1d-90dd-c1676c1e5e6d",
    "assignerShortName": "JFROG",
    "cveId": "CVE-2026-17496",
    "datePublished": "2026-07-26T14:33:02.602Z",
    "dateReserved": "2026-07-26T14:28:45.607Z",
    "dateUpdated": "2026-07-26T14:33:02.602Z",
    "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.

Action not permitted

GHSA-GWHC-VPRP-GFCG

CVE-2026-17496 (GCVE-0-2026-17496)

Tags

Sightings

Nomenclature