What is CVE-2026-53519?

CVE-2026-53519 is a critical-severity vulnerability in Nezhahq Nezha, classified under Path Traversal. CVSS score: 9.1/10. Published 2026-06-12.

How severe is CVE-2026-53519?

Critical severity. CVSS v3 base score is 9.1 out of 10.

Is CVE-2026-53519 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Path Traversal in Nezhahq Nezha

CVE-2026-53519

Nezha Monitoring is a self-hostable, lightweight, servers and websites monitoring and O&M tool. Prior to version 2.0.13, fallbackToFrontend in the dashboard's NoRoute handler treats any URL whose raw string starts with /dashboard as an adm…

Vulnerability class: Path Traversal (Directory Traversal)

EPSS: 0.005 (41.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N.

Affected products

Nezhahq Nezha — versions < 2.0.13

Weakness classification (CWE)

CWE-22 — Path Traversal

Public proof-of-concept exploits

tar-xz/CVE-2026-53519-PoC

References

security-advisories@github.com (x_refsource_CONFIRM)

Frequently asked questions

What is CVE-2026-53519?: CVE-2026-53519 is a critical-severity vulnerability in Nezhahq Nezha, classified under Path Traversal. CVSS score: 9.1/10. Published 2026-06-12.
How severe is CVE-2026-53519?: Critical severity. CVSS v3 base score is 9.1 out of 10.
Is CVE-2026-53519 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.