Vulnerability-Lookup

GHSA-69G7-VM8M-997R

Vulnerability from github – Published: 2026-08-28 21:31 – Updated: 2026-08-28 21:31

Details

HeyForm before 3.0.0-rc.8 reflects the request Origin header in CORS responses while allowing credentials, enabling cross-origin requests with authentication. Attackers can execute authenticated GraphQL queries from malicious pages visited by logged-in users to access workspaces, projects, forms, submissions, and respondent data, or modify account settings.

Severity

8.1 (High)


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

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JSON

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{
  "affected": [],
  "aliases": [
    "CVE-2026-82291"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-942"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-28T20:20:20Z",
    "severity": "HIGH"
  },
  "details": "HeyForm before 3.0.0-rc.8 reflects the request Origin header in CORS responses while allowing credentials, enabling cross-origin requests with authentication. Attackers can execute authenticated GraphQL queries from malicious pages visited by logged-in users to access workspaces, projects, forms, submissions, and respondent data, or modify account settings.",
  "id": "GHSA-69g7-vm8m-997r",
  "modified": "2026-08-28T21:31:28Z",
  "published": "2026-08-28T21:31:28Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/heyform/heyform/security/advisories/GHSA-fg7j-rmgr-rc9g"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-82291"
    },
    {
      "type": "WEB",
      "url": "https://github.com/heyform/heyform/commit/bf9d738ca70ae5641c0c7372982b00365c5144d4"
    },
    {
      "type": "WEB",
      "url": "https://github.com/heyform/heyform"
    },
    {
      "type": "WEB",
      "url": "https://github.com/heyform/heyform/blob/v3.0.0-rc.7/packages/server/src/main.ts"
    },
    {
      "type": "WEB",
      "url": "https://www.vulncheck.com/advisories/heyform-reflects-any-origin-in-cors-responses-while-allowing-credentials"
    }
  ],
  "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-2026-82291 (GCVE-0-2026-82291)

Vulnerability from cvelistv5 – Published: 2026-08-28 16:19 – Updated: 2026-08-29 11:48

Title

HeyForm Reflects Any Origin in CORS Responses While Allowing Credentials

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-942 - Permissive Cross-domain Security Policy with Untrusted Domains

Assigner

VulnCheck mitre root

References

5 references

URL	Tags
https://github.com/heyform/heyform/security/advis…	vendor-advisory
https://github.com/heyform/heyform/blob/v3.0.0-rc…	technical-description
https://github.com/heyform/heyform/commit/bf9d738…	patch
https://github.com/heyform/heyform	product
https://www.vulncheck.com/advisories/heyform-refl…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version
heyform	heyform	Affected: 0 , < 3.0.0-rc.8 (semver)

Date Public

2026-06-23 00:00

Credits

George Chen

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "heyform",
          "vendor": "heyform",
          "versions": [
            {
              "lessThan": "3.0.0-rc.8",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "reporter",
          "value": "George Chen"
        }
      ],
      "datePublic": "2026-06-23T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "HeyForm before 3.0.0-rc.8 reflects the request Origin header in CORS responses while allowing credentials, enabling cross-origin requests with authentication. Attackers can execute authenticated GraphQL queries from malicious pages visited by logged-in users to access workspaces, projects, forms, submissions, and respondent data, or modify account settings."
        }
      ],
      "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"
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-942",
              "description": "Permissive Cross-domain Security Policy with Untrusted Domains",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-29T11:48:21.218Z",
        "orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
        "shortName": "VulnCheck"
      },
      "references": [
        {
          "name": "GitHub Security Advisory (GHSA-fg7j-rmgr-rc9g)",
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://github.com/heyform/heyform/security/advisories/GHSA-fg7j-rmgr-rc9g"
        },
        {
          "name": "Vulnerable code: main.ts",
          "tags": [
            "technical-description"
          ],
          "url": "https://github.com/heyform/heyform/blob/v3.0.0-rc.7/packages/server/src/main.ts"
        },
        {
          "name": "Fix commit",
          "tags": [
            "patch"
          ],
          "url": "https://github.com/heyform/heyform/commit/bf9d738ca70ae5641c0c7372982b00365c5144d4"
        },
        {
          "tags": [
            "product"
          ],
          "url": "https://github.com/heyform/heyform"
        },
        {
          "name": "VulnCheck Advisory: HeyForm Reflects Any Origin in CORS Responses While Allowing Credentials",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://www.vulncheck.com/advisories/heyform-reflects-any-origin-in-cors-responses-while-allowing-credentials"
        }
      ],
      "title": "HeyForm Reflects Any Origin in CORS Responses While Allowing Credentials",
      "x_generator": {
        "engine": "vulncheck-endgame"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
    "assignerShortName": "VulnCheck",
    "cveId": "CVE-2026-82291",
    "datePublished": "2026-08-28T16:19:07.930Z",
    "dateReserved": "2026-08-28T11:12:54.442Z",
    "dateUpdated": "2026-08-29T11:48:21.218Z",
    "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

GHSA-69G7-VM8M-997R

CVE-2026-82291 (GCVE-0-2026-82291)

Tags

Sightings

Nomenclature