CVE-2026-30961 Gokapi's File Request MaxSize Limit Bypassed via Multi-Chunk Upload

What is CVE-2026-30961?

CVE-2026-30961 is a medium-severity vulnerability in Forceu Gokapi, published on 13 Mar 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

Gokapi is a self-hosted file sharing server with automatic expiration and encryption support. Prior to 2.2.4, the chunked upload completion path for file requests does not validate the total file size against the per-request MaxSize limit. An attacker with a public file request link can split an oversized file into chunks each under MaxSize and upload them sequentially, bypassing the size restriction entirely. Files up to the server's global MaxFileSizeMB are accepted regardless of the file request's configured limit. This vulnerability is fixed in 2.2.4.

Weakness: CWE-770

Which versions are affected by CVE-2026-30961?

3 open source packages ship an affected version, including github.com/forceu/gokapi. It affects 1 product.

Products include Forceu Gokapi.

How do I fix CVE-2026-30961?

Upgrade github.com/forceu/gokapi to 2.2.4 or later.

Is CVE-2026-30961 being exploited?

There is no known exploitation of CVE-2026-30961 in the wild and no public exploit code.

Other vulnerabilities in Forceu Gokapi

• CVE-2026-28683 Gokapi: Stored XSS in SVG Hotlinks High 8.7
• CVE-2026-30955 Gokapi vulnerable to DoS in E2E Metadata Parser Medium 6.5
• CVE-2026-28682 Gokapi: Data Leak in Upload Status Stream Medium 6.4
• CVE-2026-29061 Gokapi: Privilege escalation via incomplete API-key permission revocation on user rank demotion Medium 5.4
• CVE-2026-29060 Gokapi: Privilege escalation with auth token Medium 5.0

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-45vh-rpc8-hxpp, GO-2026-4695.