Vulnerability · Published Aug 30, 2026 · Assigned by VulDB
CVE-2026-82543vastsa FileCodeBox Pickup Limit views.py update_file_usage race condition
High 7.3
In plain English
A high-severity race condition in FileCodeBox from vastsa. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 43% of all known vulnerabilities).
Official description
A vulnerability was detected in vastsa FileCodeBox up to 2.3. This vulnerability affects the function update_file_usage of the file apps/base/views.py of the component Pickup Limit Handler. Performing a manipulation results in race condition. It is possible to initiate the attack remotely. The exploit is now public and may be used. Upgrading to version 2.5.0 is able to resolve this issue. The patch is named 8d7d856c62d73badd0797eb4daec8d2ff10a403a. Upgrading the affected component is recommended.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| vastsa | FileCodeBox | 2.02.12.22.3 |
Weakness: CWE-362 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
References
- VDB-397060 | vastsa FileCodeBox Pickup Limit views.py update_file_usage race condition vdb-entry, technical-description
- VDB-397060 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
- CVE-2026-82543 | CVE Analysis and Report third-party-advisory
- Submit #891416 | vastsa FileCodeBox 2.0.0-dev (main branch, ~2026-06-19) CWE-362 (Race Condition — TOCTOU) + CWE-840 (Business Logic Erro third-party-advisory
- https://github.com/vastsa/FileCodeBox/issues/482 exploit, issue-tracking
- https://github.com/vastsa/FileCodeBox/pull/487 issue-tracking, patch
- https://github.com/vastsa/FileCodeBox/commit/8d7d856c62d73badd0797eb4daec8d2ff10a403a patch
- https://github.com/vastsa/FileCodeBox/releases/tag/v2.5.0 patch
- https://github.com/vastsa/FileCodeBox/ product