CVE-2026-34581: goshs has Auth Bypass via Share Token

Severity: high (CVSS 8.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2026-04-02 · updated 2026-07-24
Weakness: CWE-288

Description

goshs is a SimpleHTTPServer written in Go. From version 1.1.0 to before version 2.0.0-beta.2, when using the Share Token it is possible to bypass the limited selected file download with all the gosh functionalities, including code exec. This issue has been patched in version 2.0.0-beta.2.

Affected products

patrickhener goshs: from 1.1.0 before 2.0.0; 2.0.0-beta1 — fixed in 2.0.0

How to fix

Upgrade to a fixed version: patrickhener goshs 2.0.0. Check the vendor advisory for mitigations.

References

https://github.com/patrickhener/goshs/commit/6fb224ed15c2ccc0c61a5ebe22f2401eb06e9216
https://github.com/patrickhener/goshs/releases/tag/v2.0.0-beta.2
https://github.com/patrickhener/goshs/security/advisories/GHSA-jgfx-74g2-9r6g

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