AUGUST 15, 2026
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Case File

CVE-2026-73611

MEDIUM · CVSS 6.8 EPSS 0.27% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-08-13 · Last synced 2026-08-15

CyberRota Analysis

AI-Generated

File Browser versions 2.50.0 through 2.63.21 are vulnerable due to improper validation of JWT expiration when proxy authentication is set up with a non-default logout page. This flaw allows attackers with a previously valid token to access protected routes and administrative endpoints indefinitely, as well as renew expired tokens. Organizations using affected versions of Exchange should prioritize remediation to prevent unauthorized access and potential data breaches.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

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CVE
CVE-2026-73611
Severity
MEDIUM
CVSS
6.8
EPSS
0.27%
Exchange

Original NVD Description

File Browser versions from 2.50.0 through 2.63.21 fail to validate JWT expiration when proxy authentication is configured with a non-default logout page. Attackers with a previously valid token can access protected routes and administrative endpoints indefinitely, and exchange expired tokens for fresh ones via the renewal endpoint.