What is CVE-2026-111383?

CVE-2026-111383 is a medium-severity vulnerability in Nezhahq Nezha, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 6.5/10. Published 2026-10-16.

How severe is CVE-2026-111383?

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

Resource exhaustion in Nezhahq Nezha

CVE-2026-111383

Nezha from 2.0.13 before 2.3.15 contains a resource exhaustion vulnerability that allows authenticated users to open unbounded concurrent connections to the /api/v1/ws/transfer WebSocket endpoint. Attackers can hold thousands of subscriptions created by ServerTransferClass.Subscribe without limits, exhausting file descriptors, memory, and goroutines and blocking agent gRPC reconnections.

Published 2026-10-16 · last modified 2026-10-16.

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:N/I:N/A:H.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Nezhahq Nezha

Weakness classification (CWE)

CWE-770 — Allocation of Resources Without Limits or Throttling

References

github.com/nezhahq/nezha/security/advisories/GHSA-ch6h-w872-77mx (vendor-advisory)
github.com/nezhahq/nezha/commit/36b742a7e9a81ed782363dd19efd77b7030fbd0f (patch)
www.vulncheck.com/advisories/nezha-2.0.13-before-2.3.15-denial-of-service-via-a… (third-party-advisory)

Frequently asked questions

What is CVE-2026-111383?: CVE-2026-111383 is a medium-severity vulnerability in Nezhahq Nezha, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 6.5/10. Published 2026-10-16.
How severe is CVE-2026-111383?: Medium severity. CVSS v3 base score is 6.5 out of 10.