Reference page — cumulative record through Sunday, October 4, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.
CVE-2026-82810
extension.vn 2FA Authenticator Extension Background Service Worker chrome.runtime.onMessageExternal.addListener information disclosure
AV AC AT PR UI VC VI VA CVSS EPSS %ile KEV
L L N L N L N N 1.9 .0015 3.3 —
AFFECTED
Product Versions Fixed
2FA Authenticator Extension 1.0.0.2 – —
TIMELINE
Aug 31 Reserved by VulDB
Aug 31 Published (CNA: VulDB)
Sep 2 EXPLOIT PUBLISHED — CVE-2026-82810 (extension.vn 2FA Authenticator Extension). Public exploit reference added.
Description
A weakness has been identified in extension.vn 2FA Authenticator Extension 1.0.0.2 on Chrome. The impacted element is the function chrome.runtime.onMessageExternal.addListener of the component Background Service Worker. Executing a manipulation of the argument sender.id can lead to information disclosure. The attack requires local access. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure.
Lifecycle
Complete event history — 3 events, chronological
| Date | Event | Detail |
|---|
| August 31, 2026 | Reserved | Reserved by VulDB |
| August 31, 2026 | Published | Published (CNA: VulDB) |
| September 2, 2026 | EXPLOIT PUBLISHED | EXPLOIT PUBLISHED — CVE-2026-82810 (extension.vn 2FA Authenticator Extension). Public exploit reference added. |
Affected
Affected products and packages — 1 row
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
|---|
| extension.vn | 2FA Authenticator Extension | — | 1.0.0.2 | — |
About this page
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-82810 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Sunday, October 4, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.
