CVE-2026-50139

Published: Ago 18, 2026 Last Modified: Ago 19, 2026

ExploitDB:

Other exploit source:

Google Dorks:

MEDIUM 5,9

Source: [email protected]

Attack Vector: network

Attack Complexity: high

Privileges Required: none

User Interaction: none

Scope: unchanged

Confidentiality: high

Integrity: none

Availability: none

Description

AI Translation Available

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.

362

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

Draft

Abstraction: Class Structure: Simple

Common Consequences

Security Scopes Affected:

Availability Confidentiality Integrity Access Control

Potential Impacts:

Dos: Resource Consumption (Cpu) Dos: Resource Consumption (Memory) Dos: Resource Consumption (Other) Dos: Crash, Exit, Or Restart Dos: Instability Read Files Or Directories Read Application Data Execute Unauthorized Code Or Commands Gain Privileges Or Assume Identity Bypass Protection Mechanism

Applicable Platforms

Languages: C, C++, Java

Technologies: Mobile, ICS/OT

Likelihood of Exploit: Medium

View CWE Details

https://github.com/goshs-labs/goshs/security/advisories/GHS…

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