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  4. CVE 2026 82291 heyform reflects any origin in cors responses
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Back to active CVEs
High · CVSS 8.1CVE-2026-82291

HeyForm Reflects Any Origin in CORS Responses While Allowing CredentialsCVE-2026-82291

Answer in brief

CVE-2026-82291 records a High severity (CVSS 8.1) vulnerability in HeyForm Reflects Any Origin in CORS Responses While Allowing Credentials. The current sources do not mark it as known exploited. The current feed maps heyform/heyform (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Aug 28, 2026Updated Sep 24, 2026Source checked Oct 13, 2026First seen by HOL Aug 28, 2026Material review Sep 24, 2026
Upstream Advisory

Key facts

Risk
High · CVSS 8.1
Exploitation
Not marked as known exploited
Affected software
1 mapped package or product
Fix availability
Available

Why this deserves its current priority

CVSS is 8.1. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps heyform/heyform (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
heyform/heyformgeneric>=0 <3.0.0-rc.83.0.0-rc.8

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for heyform/heyform.
  2. 2Review the reported fix. Update heyform/heyform to 3.0.0-rc.8 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

  1. Published upstream

    Aug 28, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Sep 24, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Aug 28, 2026

Sources and claim methodology

  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
  • Source referencevulncheck.com
Upstream source 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.

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • Security Vulnerability identified in IBM TRIRIGA - Zip SlipSame generic ecosystem
  • Edimax BR-6208AC QoS Page formQoS cross site scriptingSame generic ecosystem
  • code-projects Online Ticket Reservation System medallion.sql file information disclosureSame generic ecosystem
  • code-projects Matrimonial System matrimony.sql file accessSame generic ecosystem
  • EricLBuehler mistral.rs media_source.rs is_global_ip server-side request forgerySame generic ecosystem
  • EricLBuehler Mistral.rs handlers.rs calibration_apply path traversalSame generic ecosystem

Record context

Vulnerability class
Missing Auth
EPSS
Not reported
CWE IDs
CWE-942
Source
CVE List V5
Source checked
Oct 13, 2026
References
5 linked sources
Open source record