CVE-2026-83601
Publication date 22 September 2026
Last updated 24 September 2026
Ubuntu priority
Description
Netdata is an open source observability tool. Prior to 2.10.4, an authenticated child agent can send an oversized DIMENSION SLOT value that str2ull_encoded passes to pluginsd_rrddim_put_to_slot in src/plugins.d/pluginsd_internals.h without an upper bound. prd_array_create in src/database/rrdset-pluginsd-array.h can then wrap the size_t allocation calculation while retaining the original large array size, causing the subsequent initialization loop to write beyond the undersized heap allocation and crash the parent agent. This issue is fixed in version 2.10.4 and nightly build 2.10.0-782-nightly.
Status
| Package | Ubuntu Release | Status |
|---|---|---|
| netdata | 26.04 LTS resolute | Not in release |
| 24.04 LTS noble |
Needs evaluation
|
|
| 22.04 LTS jammy |
Needs evaluation
|
|
| 20.04 LTS focal |
Needs evaluation
|
|
| 18.04 LTS bionic |
Needs evaluation
|
Severity score breakdown
CVSS version: CVSS v3.0
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
References
Other references
- https://www.cve.org/CVERecord?id=CVE-2026-83601
- https://github.com/netdata/netdata/commit/034a774f689ac01488fc261ca729ce0875819b1b
- https://github.com/netdata/netdata/pull/22598
- https://github.com/netdata/netdata/releases/tag/v2.10.4
- https://github.com/netdata/netdata/security/advisories/GHSA-3qh4-842w-fvrm