8.1

CVE-2026-50891: filestash Go Improper Access Control

CVSS: 8.1v3.1HighDeferred
AliasesGHSA-rcqf-cpv9-g5jfGO-2026-6300
Published 15-06-2026Last modified 16-06-2026
Open JSON

Vulnerability summary

CVE-2026-50891 is a high (CVSS 8.1) Improper Access Control vulnerability in filestash Go. EPSS estimates a 0.35% chance of exploitation in the next 30 days, higher than 27.3% of scored vulnerabilities.

Overall risk
32/100
0100
Medium · default modelHow is this calculated?
CVSS score
8.1/10
010
High · v3.1 (CVE.org)
EPSS score
0.35%
0%100%
Low · +0.02 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 2 · Related 2
OPENSUSE-SU-2026:21761-1SUSE-SU-2026:23625-1

Timeline

  1. 15-06-2026
    PublishedVulnerability first disclosed.
  2. 16-06-2026
    Last modifiedVulnerability information updated.

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.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.35%

Chance of exploitation in the next 30 days

Percentile

27%

Versus all other CVEs

30-day change

+0.02 pp

From 0.33% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.35%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Github.com/mickael-kerjean1 product
  • filestash≤ 0.2.2-0.20260827111952-cbcd1e96ebc7 | All versions (No fix recorded)

1 vendor · 1 product

References

4 links