CVE-2026-50139

Published: Aug 18, 2026Modified: Aug 19, 2026

5.9

Vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

Exploitability: 2.2 / Impact: 3.6

Source: security-advisories@github.com (Secondary)

Description

goshs is a SimpleHTTPServer written in Go. Prior to version 2.1.0, `ShareHandler` reads the share token's `DownloadLimit` under `RLock`, releases the lock, serves the file, then re-acquires the lock to increment the counter. Concurrent requests all read the same `Downloaded`/`DownloadLimit` snapshot, all pass the check, and all are served — exceeding the operator's intended cap. Version 2.1.0 patches the issue.

Related CWEs

CWE-362

Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

The product contains a code sequence that can run concurrently with other code, and the code sequence requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence that is operating concurrently.

References (2)

https://github.com/goshs-labs/goshs/security/advisories/GHSA-j48m-h7xq-2xpj

Source: security-advisories@github.com

https://github.com/goshs-labs/goshs/security/advisories/GHSA-j48m-h7xq-2xpj

Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0

Timeline

No history available yet.