Recorded 19 Oct 2026 at 15:12 UTC. This is what ChangeIntel recorded, including the title, summary, facts and links. It is not a statement of the source's current position. See the latest record.

The historical field “Public exploit code” recorded Nuclei detection-template membership. It did not establish exploit availability. The original recorded fields remain below.

The historical “Publicly disclosed: No” field could represent a missing MSRC assessment. It does not establish that the vulnerability was undisclosed. The original recorded fields remain below.

CVEMicrosoft Security Response Center

Microsoft Authentication Library (MSAL) for Node.js Information Disclosure Vulnerability

Origin validation error in Microsoft Authentication Library (MSAL) for Node.js allows an unauthorized attacker to disclose information over a network.

What it said

CVE: CVE-2026-109461
Severity: Important
CVSS base score: 5.9
CVSS vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C
Impact: Information Disclosure
Exploitation detected: Not reported by MSRC
Publicly disclosed: No
Exploitability: Exploitation Less Likely
Component: Microsoft Authentication Library (MSAL) for Node.js
Weakness: CWE-346: Origin Validation Error
Issued by: Microsoft
Customer action: Required: apply the update
Affected products: Microsoft Edge (Chromium-based), Microsoft Identity Client for NodeJS on Windows 10 Version 22H2 for x64-based Systems
Updates that fix it: No KB listed
CISA KEV: Not listed in the collected catalog
EPSS: 0.3%; scored 19 Oct 2026
Public exploit code: No Nuclei template listed
Published: 15 Oct 2026 07:00 UTC
Last revised: 15 Oct 2026 07:00 UTC
Revision note: Information published.

Recorded links

Source evidence when recorded

Microsoft security releases: Complete at observationRead 19 Oct 2026 at 15:11 UTC
CISA KEV: Complete at observationRead 19 Oct 2026 at 15:11 UTC
FIRST EPSS: Complete at observationRead 19 Oct 2026 at 15:11 UTC
Public detection templates (Nuclei): Complete at observationRead 19 Oct 2026 at 15:11 UTC

Coverage describes the sources at this observation. A complete read then does not establish their current position.

What changed

Affected products: Microsoft Edge (Chromium-based) → Microsoft Edge (Chromium-based), Microsoft Identity Client for NodeJS on Windows 10 Version 22H2 for x64-based Systems
17 Oct 2026
Affected products: MessagePack 2.5.303 → Microsoft Edge (Chromium-based)
16 Oct 2026

Page history

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Field-level log (5)

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19 Oct 2026 · 15:12:40 UTC EPSS0.3%; scored 18 Oct 2026 → 0.3%; scored 19 Oct 2026
18 Oct 2026 · 14:54:30 UTC EPSSNot scored → 0.3%; scored 18 Oct 2026
18 Oct 2026 · 14:54:30 UTC Link: October 2026/security?release=2026-Oct#cves
17 Oct 2026 · 07:28:24 UTC Affected productsMicrosoft Edge (Chromium-based) → Microsoft Edge (Chromium-based), Microsoft Identity Client for NodeJS on Windows 10 Version 22H2 for x64-based Systems
16 Oct 2026 · 16:13:25 UTC Affected productsMessagePack 2.5.303 → Microsoft Edge (Chromium-based)