{"id":"CVE-2026-82291","aliases":["EUVD-2026-67822","GHSA-69g7-vm8m-997r","GHSA-fg7j-rmgr-rc9g"],"status":"published","title":"HeyForm Reflects Any Origin in CORS Responses While Allowing Credentials","description":"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":{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00553,"percentile":0.4663,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-942"],"published":"2026-08-28T16:19:07Z","modified":"2026-10-28T02:30:23Z","products":[{"vendor":"heyform","product":"heyform"}],"references":[{"url":"https://github.com/heyform/heyform/security/advisories/GHSA-fg7j-rmgr-rc9g","tags":["vendor-advisory","exploit","advisory"]},{"url":"https://github.com/heyform/heyform/blob/v3.0.0-rc.7/packages/server/src/main.ts","tags":["technical-description","article"]},{"url":"https://github.com/heyform/heyform/commit/bf9d738ca70ae5641c0c7372982b00365c5144d4","tags":["patch","fix"]},{"url":"https://github.com/heyform/heyform","tags":["product","package"]},{"url":"https://www.vulncheck.com/advisories/heyform-reflects-any-origin-in-cors-responses-while-allowing-credentials","tags":["third-party-advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-82291","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-69g7-vm8m-997r"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/82xxx/CVE-2026-82291.json","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2026-82291","title":"HeyForm Reflects Any Origin in CORS Responses While Allowing Credentials","description":"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.","status":"published","published":"2026-08-28T16:19:07.93Z","modified":"2026-09-24T14:20:21.13Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N","level":"high","assessor":"cna"}],"cwes":["CWE-942"],"updated_at":"2026-11-02T13:40:46.161838Z"}],"euvd":[{"id":"EUVD-2026-67822","description":"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.","status":"published","published":"2026-08-28T16:19:07Z","modified":"2026-09-24T14:20:21Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N","level":"high"}],"updated_at":"2026-11-02T17:27:57.839356Z"}],"ghsa":[{"id":"GHSA-69g7-vm8m-997r","title":"HeyForm before 3.0.0-rc.8 reflects the request Origin header in CORS responses while allowing...","description":"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.","status":"published","published":"2026-08-28T21:31:28Z","modified":"2026-08-28T21:31:36Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N","level":"high"}],"cwes":["CWE-942"],"updated_at":"2026-11-02T15:11:08.705354Z"}],"nvd":[{"id":"CVE-2026-82291","description":"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.","status":"published","published":"2026-08-28T20:20:20.82Z","modified":"2026-09-16T13:42:44.547Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N","level":"high","assessor":"secondary"}],"cwes":["CWE-942"],"updated_at":"2026-11-02T14:12:42.366888Z"}],"osv":[{"id":"CVE-2026-82291","title":"HeyForm Reflects Any Origin in CORS Responses While Allowing Credentials","description":"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.","status":"published","published":"2026-08-28T16:19:07.93Z","modified":"2026-10-28T02:30:23.759517369Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N","level":"high"}],"cwes":["CWE-942"],"updated_at":"2026-11-02T15:45:18.131258Z"}]}}