What is CVE-2026-27734?

CVE-2026-27734 is a medium-severity vulnerability in Henrygd Beszel, classified under Path Traversal. CVSS score: 6.5/10. Published 2026-02-27.

How severe is CVE-2026-27734?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Path Traversal in Henrygd Beszel

CVE-2026-27734

Beszel is a server monitoring platform. Prior to version 0.18.2, the hub's authenticated API endpoints GET /api/beszel/containers/logs and GET /api/beszel/containers/info pass the user-supplied "container" query parameter to the agent with…

Vulnerability class: Path Traversal (Directory Traversal)

EPSS: 0.000 (5.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.

Affected products

Henrygd Beszel — versions < 0.18.4

Weakness classification (CWE)

CWE-22 — Path Traversal

References

https://github.com/henrygd/beszel/security/advisories/GHSA-phwh-4f42-gwf3 (x_refsource_CONFIRM)
https://github.com/henrygd/beszel/releases/tag/v0.18.4 (x_refsource_MISC)

Frequently asked questions

What is CVE-2026-27734?: CVE-2026-27734 is a medium-severity vulnerability in Henrygd Beszel, classified under Path Traversal. CVSS score: 6.5/10. Published 2026-02-27.
How severe is CVE-2026-27734?: Medium severity. CVSS v3 base score is 6.5 out of 10.