Vulnerability · Published Jun 15, 2026 · Assigned by mitre
CVE-2026-50891
High 8.1
In plain English
A high-severity improper access control in the github.com/mickael-kerjean/filestash package (Go). Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 26% of all known vulnerabilities).
Severity (CVSS 3.1)8.1High
Exploit odds (30 days)0.3%top 74.2% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
Incorrect access control in the /admin/api/config component of Filestash v0.4.0 allows attackers to escalate privileges via sending a crafted request.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Go | github.com/mickael-kerjean/filestash | no fix listed | GHSA-rcqf-cpv9-g5jf |
| Go | github.com/mickael-kerjean/filestash | no fix listed | GO-2026-6300 |
Affected products (as reported)
Weakness: CWE-284 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N