{"id":"CVE-2026-83600","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-83600","generatedAt":"2026-10-28T00:59:47.443Z","title":"Netdata is an open source observability tool.","description":"Netdata is an open source observability tool. Prior to 2.10.4, an authenticated child agent can send an oversized CHART SLOT value that str2ull_encoded passes to pluginsd_rrdset_cache_put_to_slot in src/plugins.d/pluginsd_internals.h. The accepted slot drives reallocz to request an approximately 16 GiB chart-pointer array, and allocation failure invokes fatal and aborts the parent Netdata agent, repeatedly disabling centralized monitoring while stream access persists. This issue is fixed in version 2.10.4 and nightly build 2.10.0-782-nightly.","published":"2026-09-22T17:17:26.000Z","lastModified":"2026-09-23T18:28:25.000Z","status":"Awaiting Analysis","sourceIdentifier":"security-advisories@github.com","cvss":{"version":"3.1","score":6.5,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"},"cwe":["CWE-193","CWE-400"],"affected":[],"epss":{"score":0.00548,"percentile":0.45646,"date":"2026-10-26","history":[{"date":"2026-09-23","score":0.00548,"percentile":0.44808}]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (0.55%). Track it; it rarely justifies an emergency change on its own."},"changes":[{"kind":"new","label":"New CVE","at":"2026-09-22T17:17:26.000Z","detail":{"score":"6.5","severity":"MEDIUM","publishedAt":"2026-09-22T17:17:26.103Z"},"summary":"New CVE, medium severity (CVSS 6.5)."}],"references":[{"url":"https://github.com/netdata/netdata/commit/034a774f689ac01488fc261ca729ce0875819b1b","source":"security-advisories@github.com"},{"url":"https://github.com/netdata/netdata/pull/22598","source":"security-advisories@github.com"},{"url":"https://github.com/netdata/netdata/releases/tag/v2.10.4","source":"security-advisories@github.com"},{"url":"https://github.com/netdata/netdata/security/advisories/GHSA-3mxw-fv2x-rhc6","source":"security-advisories@github.com"},{"url":"https://github.com/netdata/netdata/security/advisories/GHSA-3mxw-fv2x-rhc6","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-83600","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}