CVE-2026-82291: fallo de gravedad alta en heyform
HeyForm Reflects Any Origin in CORS Responses While Allowing Credentials
Publicada el · Actualizada el
Aviso por correo cuando entre en el KEV, tenga PoC pública o suba de nota.
21Vexday Risk Score
Sin señal de explotación. Ningún artefacto público de explotación conocido hasta ahora.
ssvc Trackcvss 8.1epss 0.6%
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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
Productos afectados
heyform · heyformCVEs relacionadas — heyform
En el mismo producto, de las más peligrosas a las menos.
CVE-2026-45797MEDIUMHeyForm Vulnerable to Stored XSS via Unauthenticated SVG File UploadEPSS 0.6%CVE-2026-63429HIGHHeyForm has unauthenticated /api/upload endpoint that accepts arbitrary files with no auth/session/form contextEPSS 0.5%CVE-2026-35198CRITICALHeyForm vulnerable to stored XSS via form field titlesEPSS 0.5%CVE-2026-63428MEDIUMHeyForm: completeSubmission persists submitter-supplied hidden fields verbatim without validating against the form's declared hidden-field setEPSS 0.3%CVE-2026-102615HIGHHeyForm: Uploaded HTML files are served as text/html on the app origin with no CSP — stored XSSEPSS 0.3%
Referencias
https://github.com/heyform/heyformhttps://github.com/heyform/heyform/blob/v3.0.0-rc.7/packages/server/src/main.tshttps://github.com/heyform/heyform/commit/bf9d738ca70ae5641c0c7372982b00365c5144d4https://github.com/heyform/heyform/security/advisories/GHSA-fg7j-rmgr-rc9ghttps://www.vulncheck.com/advisories/heyform-reflects-any-origin-in-cors-responses-while-allowing-credentials