GHSA-xcx6-jx8p-x3h5 CVE-2026-109461
MSAL Node authorization code flow may disclose parameters to an attacker-controlled endpoint
- Severity
- 7.5 / 10
- Medium · CVSS 3.1
- Exploit chance (EPSS)
- 0.36%
- Chance of exploitation in the next 30 days. Higher than 29.96% of scored vulnerabilities.
- Known exploited
- No
- Not in CISA's catalog
- Weakness
- CWE-346 Origin Validation Error
- Fix
7.1.0- Upgrade @azure/msal-node to this version or later
Description
Impact
Origin validation error in Microsoft Authentication Library (MSAL) for Node.js allows an unauthorized attacker to disclose information over a network. This affects the auth_code flow.
Patches
Version 7.1.0 and higher are patched.
Workarounds
Ensure you pass in only the auth_code to to acquireTokenByCode
Affected versions
npm
| Package | Vulnerable | Fixed in |
|---|---|---|
| @azure/msal-node | >= 5.0.0-beta.0, < 7.1.0 |
7.1.0 |
| @azure/msal-node | >= 5.0.0-beta.0, < 7.1.0 |
7.1.0 |
How to fix
Move to the fixed version or later with your package manager, update the lockfile, and run your tests. If the package only arrives through another dependency, upgrade that dependency first. If none of its releases pulls a fixed version yet, force the version with your package manager's override.
@azure/msal-node npm → 7.1.0
- npm
npm install @azure/msal-node@7.1.0- yarn
yarn add @azure/msal-node@7.1.0- pnpm
pnpm add @azure/msal-node@7.1.0
Severity breakdown
CVSS 3.1 7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- None
- Availability
- None
Weakness
CWE-346: Origin Validation Error
The product does not properly verify that the source of data or communication is valid.
References
Advisories
Fixes and patches
Packages
Other links
Timeline
- Published
- Last updated by the source
- Latest EPSS score
Related advisories
| Advisory | Severity | Why it's related |
|---|---|---|
| GHSA-m5vv-6r4h-3vj9 Azure Identity Libraries and Microsoft Authentication Library Elevation of Privilege Vulnerability | Medium | Also affects @azure/msal-node |
| GHSA-997q-gvvc-jwmx Electron: openExternal permission requests can be attributed to the wrong origin | Medium | Same weakness, CWE-346 |
| GHSA-fw47-9c62-h3vw Electron: HID and USB permission checks can be attributed to the wrong origin | Medium | Same weakness, CWE-346 |
| GHSA-x562-297c-g43g Electron: Pointer lock permission requests can be attributed to the wrong frame | Medium | Same weakness, CWE-346 |
| GHSA-4w7w-5xrc-9h26 undici vulnerable to cache poisoning and cross-user disclosure via cross-origin redirects | Critical | Same weakness, CWE-346 |
| GHSA-fq6x-pvr9-888r Microsoft Security Advisory CVE-2026-96234 - .NET and Visual Studio Information Disclosure Vulnerability | Medium | Same weakness, CWE-346 |
| GHSA-9h23-53f4-q947 Nginx UI: Bundled reverse proxy can bypass IP allowlists and enable shared login lockout | Medium | Same weakness, CWE-346 |
| GHSA-v2j5-22fr-j62r AsyncHttpClient: Pooled connections can still be shared across NTLM, Negotiate and proxy logins | High | Same weakness, CWE-346 |
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