What is CVE-2026-40196?

CVE-2026-40196 is a high-severity vulnerability in Sysadminsmedia Homebox, classified under CWE-708. CVSS score: 8.1/10. Published 2026-04-17.

How severe is CVE-2026-40196?

High severity. CVSS v3 base score is 8.1 out of 10.

Vulnerability in Sysadminsmedia Homebox

CVE-2026-40196

HomeBox is a home inventory and organization system. Versions prior to 0.25.0 contain a vulnerability where the defaultGroup ID remained permanently assigned to a user after being invited to a group, even after their access to that group w…

EPSS: 0.002 (16.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N.

Affected products

Sysadminsmedia Homebox — versions < 0.25.0

Weakness classification (CWE)

CWE-708

References

security-advisories@github.com (x_refsource_CONFIRM, Vendor Advisory)
security-advisories@github.com (Product, x_refsource_MISC, Release Notes)

Frequently asked questions

What is CVE-2026-40196?: CVE-2026-40196 is a high-severity vulnerability in Sysadminsmedia Homebox, classified under CWE-708. CVSS score: 8.1/10. Published 2026-04-17.
How severe is CVE-2026-40196?: High severity. CVSS v3 base score is 8.1 out of 10.