CVE-2026-82810CWE-200CWE-284broken-access-controlinformation-disclosure

CVE-2026-82810

Low · published August 31, 2026

CVSS v3.1
3.3
EPSS
0%
Percentile
3.6
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
3.3 · LOW
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
CVSS v4.0
4.8 · CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P
EPSS
0.00147 · 3.6th percentile
Weaknesses
CWE-200 · Exposure of Sensitive Information to an Unauthorized Actor; CWE-284 · Improper Access Control
Published
2026-08-31T21:17Z
References (5)
https://github.com/xryj920/chrome_extensions/blob/main/extension.vn%202FA%20Authenticator%201.0.0.2%20exposes%20stored%20TOTP%20secrets%20through%20an%20unrestricted%20external%20message%20handler · [email protected]https://vuldb.com/cve/CVE-2026-82810 · [email protected]https://vuldb.com/submit/875249 · [email protected]https://vuldb.com/vuln/397229 · [email protected]https://vuldb.com/vuln/397229/cti · [email protected]
EPSS history
Timeline
  • 02 SEP 03:40Z
    EPSS moved — → 0%
    epss
  • 31 AUG 16:45Z
    extension.vn 2FA Authenticator Extension Background Service Worker chrome.runtime.onMessageExternal.addListener information disclosure
    cvelistv5