CVE-2026-73611
File Browser 2.50.0 through 2.63.21 JWT Expiration Bypass
- State
- Published
- Severity
- 7.6 High
- Published
- Aug 13, 2026
- Updated
- Sep 30, 2026
- Reserved
- Aug 13, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 7.6 High | CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N | VulnCheck |
| 3.1 | 6.8 Medium | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N | VulnCheck |
Weaknesses
- CWE-613 Insufficient Session Expiration
Affected Products
| Product | Versions |
|---|---|
filebrowserfilebrowser |
|
References
- GitHub Security Advisory (GHSA-v3jv-rmh2-635j)vendor-advisory
- Patch Commitpatch
- VulnCheck Advisory: File Browser 2.50.0 through 2.63.21 JWT Expiration Bypassthird-party-advisory
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