What is CVE-2026-40077?

CVE-2026-40077 is a low-severity vulnerability in Henrygd Beszel, classified under Incomplete List of Disallowed Inputs. CVSS score: 3.5/10. Published 2026-04-09.

How severe is CVE-2026-40077?

Low severity. CVSS v3 base score is 3.5 out of 10.

Vulnerability in Henrygd Beszel

CVE-2026-40077

Beszel is a server monitoring platform. Prior to 0.18.7, some API endpoints in the Beszel hub accept a user-supplied system ID and proceed without further checks that the user should have access to that system. As a result, any authenticat…

EPSS: 0.001 (20.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 3.5 (Low). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:N/A:N.

Affected products

Henrygd Beszel — versions < 0.18.7

Weakness classification (CWE)

CWE-184 — Incomplete List of Disallowed Inputs

References

https://github.com/henrygd/beszel/security/advisories/GHSA-5f5r-95pg-xrpm (x_refsource_CONFIRM)
https://github.com/henrygd/beszel/releases/tag/v0.18.7 (x_refsource_MISC)

Frequently asked questions

What is CVE-2026-40077?: CVE-2026-40077 is a low-severity vulnerability in Henrygd Beszel, classified under Incomplete List of Disallowed Inputs. CVSS score: 3.5/10. Published 2026-04-09.
How severe is CVE-2026-40077?: Low severity. CVSS v3 base score is 3.5 out of 10.