CVE-2026-82291HeyForm Reflects Any Origin in CORS Responses While Allowing Credentials
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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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
- 8.1 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
- Weakness (CWE)
- CWE-942
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- VulnCheck
- NVD analysis
- Deferred
- Record last updated
- Sep 24, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
heyform heyform heyform:heyform (from the name) | before 3.0.0-rc.8 | CNA record |
References
- https://github.com/heyform/heyform/security/advisories/GHSA-fg7j-rmgr-rc9gvendor-advisory
- https://github.com/heyform/heyform/blob/v3.0.0-rc.7/packages/server/src/main.tstechnical-description
- https://github.com/heyform/heyform/commit/bf9d738ca70ae5641c0c7372982b00365c5144d4patch
- https://github.com/heyform/heyformproduct
- https://www.vulncheck.com/advisories/heyform-reflects-any-origin-in-cors-responses-while-allowing-credentialsthird-party-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.