Bug 2539379 - CVE-2026-83602 netdata: Netdata: Denial of Service via unauthenticated API requests [epel-9]
Summary: CVE-2026-83602 netdata: Netdata: Denial of Service via unauthenticated API re...
Keywords:
Status: NEW
Alias: None
Product: Fedora EPEL
Classification: Fedora
Component: netdata
Version: epel9
Hardware: Unspecified
OS: Unspecified
high
high
Target Milestone: ---
Assignee: Orphan Owner
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard: {"flaws": ["a8596963-fa29-4609-9706-a...
Depends On:
Blocks: CVE-2026-83602
TreeView+ depends on / blocked
 
Reported: 2026-09-23 12:01 UTC by Vladimir Vasilev
Modified: 2026-09-23 12:01 UTC (History)
2 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Type: ---
Embargoed:


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Description Vladimir Vasilev 2026-09-23 12:01:16 UTC
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.

Netdata is an open source observability tool. From 2.0.0 until 2.11.0, Netdata registers /api/v3/settings in src/web/api/v3/web_api_v3.c with HTTP_ACL_NOCHECK and HTTP_ACCESS_ANONYMOUS_DATA, causing unauthenticated PUT requests handled by src/web/api/v3/api_v3_settings.c to bypass operator-configured allow dashboard from IP restrictions. A network-reachable caller can persist attacker-controlled JSON in {varlib}/settings/default.json, manipulate its version counter, and use repeated near-20 MiB writes to consume disk space, although the file does not control collection or security policy. This vulnerability is fixed in 2.11.0.


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