{"id":"CVE-2026-82291","state":"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.","publishedAt":"2026-08-28T16:19:07.930Z","updatedAt":"2026-09-24T14:20:21.130Z","severity":{"score":8.1,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N","source":"VulnCheck"},"assigner":"VulnCheck","products":["heyform heyform"],"affected":[{"vendor":"heyform","product":"heyform","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"3.0.0-rc.8","versionType":"semver"}]}],"references":["https://github.com/heyform/heyform/security/advisories/GHSA-fg7j-rmgr-rc9g","https://github.com/heyform/heyform/blob/v3.0.0-rc.7/packages/server/src/main.ts","https://github.com/heyform/heyform/commit/bf9d738ca70ae5641c0c7372982b00365c5144d4","https://github.com/heyform/heyform","https://www.vulncheck.com/advisories/heyform-reflects-any-origin-in-cors-responses-while-allowing-credentials"],"weaknesses":["CWE-942"],"ingestedAt":"2026-10-29T20:13:15.269Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/82xxx/CVE-2026-82291.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-82291","state":"PUBLISHED","datePublished":"2026-08-28T16:19:07.930Z","dateUpdated":"2026-09-24T14:20:21.130Z","assignerShortName":"VulnCheck","assignerOrgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","dateReserved":"2026-08-28T11:12:54.442Z"},"containers":{"cna":{"title":"HeyForm Reflects Any Origin in CORS Responses While Allowing Credentials","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."}],"affected":[{"vendor":"heyform","product":"heyform","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"3.0.0-rc.8","versionType":"semver"}]}],"references":[{"url":"https://github.com/heyform/heyform/security/advisories/GHSA-fg7j-rmgr-rc9g","tags":["vendor-advisory"],"name":"GitHub Security Advisory (GHSA-fg7j-rmgr-rc9g)"},{"url":"https://github.com/heyform/heyform/blob/v3.0.0-rc.7/packages/server/src/main.ts","tags":["technical-description"],"name":"Vulnerable code: main.ts"},{"url":"https://github.com/heyform/heyform/commit/bf9d738ca70ae5641c0c7372982b00365c5144d4","tags":["patch"],"name":"Fix commit"},{"url":"https://github.com/heyform/heyform","tags":["product"]},{"url":"https://www.vulncheck.com/advisories/heyform-reflects-any-origin-in-cors-responses-while-allowing-credentials","name":"VulnCheck Advisory: HeyForm Reflects Any Origin in CORS Responses While Allowing Credentials","tags":["third-party-advisory"]}],"metrics":[{"format":"CVSS","cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"REQUIRED","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"NONE","baseScore":8.1,"baseSeverity":"HIGH"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-942","lang":"en","description":"Permissive Cross-domain Security Policy with Untrusted Domains","type":"CWE"}]}],"providerMetadata":{"shortName":"VulnCheck","orgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","dateUpdated":"2026-09-24T14:20:21.130Z"},"datePublic":"2026-06-23T00:00:00.000Z","credits":[{"lang":"en","value":"George Chen","type":"finder"}],"x_generator":{"engine":"vulncheck-endgame"}},"adp":[{"title":"CISA ADP Vulnrichment","references":[{"url":"https://github.com/heyform/heyform/security/advisories/GHSA-fg7j-rmgr-rc9g","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-08-31T18:58:33.669103Z","id":"CVE-2026-82291","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-08-31T18:58:53.299Z"}}]}}}