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CVE-2026-82291
high
CVSS 8.1
Vulnerability in CVE-2026-82291 (CVE-2026-82291)
Summary
vulnerability in CVE-2026-82291 (CVE-2026-82291). Confidential information can be exposed externally.
AI summary snake-internal / snake-material-v2
A vulnerability tracked as **CVE-2026-82291** has been found in CVE-2026-82291.
Confidential information can be exposed externally. CVSS score: 8.1/10.
What to do: apply the vendor's official patched release.
If unsure, ask your IT team or search "CVE-2026-82291 CVE-2026-82291" on the vendor's site.
CVE-2026-82291 (CVE-2026-82291) — CWE-942 / CVSS v3 8.1
Attack vector: remote (network-reachable) / unauthenticated
Plan: 1) Audit SBOM/dependencies, 2) Stage→prod upgrade, 3) Add WAF/proxy monitoring on affected endpoints, 4) Hunt IOCs in logs.
Refs: see the GHSA / vendor advisory / patched release linked on this page.
❓ What is the problem
**A vulnerability** (CWE-942) exists in CVE-2026-82291.
📍 Affected scope
CVE-2026-82291 — .
🔥 Severity
Severity: High (CVSS 8.1/10). Confidential information can be exposed externally
🔧 How to fix
Update to the patched release per vendor advisory.
🛡️ Workaround
Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.
🔍 Detection
Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Audit SBOM/dependencies to find affected services.
Response Actions (7 steps)
Concrete steps and command examples for SOC/SRE teams to execute in order
-
1Identify exposure identify
Audit SBOM/dependencies for affected components.依存マニフェストで影響コンポーネントを特定する。
-
7Post-deployment verification verify
Confirm patched version is live in productionパッチ適用後、ステージングで PoC または同等の悪用パターンを再現して脆弱性が閉じたことを確認。本番では Step 3 と同じログクエリでアラート再発が無いか継続監視。
References
- web https://github.com/heyform/heyform
- web https://github.com/heyform/heyform/blob/v3.0.0-rc.7/packages/server/src/main.ts
- web https://github.com/heyform/heyform/commit/bf9d738ca70ae5641c0c7372982b00365c5144d4
- web https://github.com/heyform/heyform/security/advisories/GHSA-fg7j-rmgr-rc9g
- web https://www.vulncheck.com/advisories/heyform-reflects-any-origin-in-cors-responses-while-allowing-credentials
- web https://nvd.nist.gov/vuln/detail/CVE-2026-82291
- web https://github.com/advisories/GHSA-69g7-vm8m-997r