{"id":59232,"date":"2026-06-02T10:39:38","date_gmt":"2026-06-02T10:39:38","guid":{"rendered":"https:\/\/zero.redgem.net\/?p=59232"},"modified":"2026-06-02T10:39:38","modified_gmt":"2026-06-02T10:39:38","slug":"opentelemetry-ebpf-instrumentation-unbounded-bpf-internal-metrics-replay-can-exhaust-cpu","status":"publish","type":"post","link":"https:\/\/zero.redgem.net\/?p=59232","title":{"rendered":"OpenTelemetry eBPF Instrumentation: Unbounded BPF internal metrics replay can exhaust CPU_CVE-2026-45680"},"content":{"rendered":"<p>{&#8220;lastseen&#8221;:&#8221;&#8221;,&#8221;description&#8221;:&#8221;OpenTelemetry eBPF Instrumentation provides eBPF instrumentation based on the OpenTelemetry standard. Prior to version 0.9.0, OBI replays BPF probe hits into histogram observations by looping once per recorded run count. On busy systems, the run-count delta can become very large, causing the metrics exporter to spend excessive CPU time in a tight loop every collection interval. 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Prior to version 0.9.0, OBI replays BPF probe hits into histogram observations by looping&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2],"tags":[6,8,97,12,21,13,7,11,5],"class_list":["post-59232","post","type-post","status-publish","format-standard","hentry","category-category_cve","tag-cve","tag-cvss","tag-cvss-59","tag-exploit","tag-medium","tag-news","tag-security","tag-tapic","tag-vulnerability"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>OpenTelemetry eBPF Instrumentation: Unbounded BPF internal metrics replay can exhaust CPU_CVE-2026-45680 - zero redgem<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/zero.redgem.net\/?p=59232\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"OpenTelemetry eBPF Instrumentation: Unbounded BPF internal metrics replay can exhaust CPU_CVE-2026-45680 - zero redgem\" \/>\n<meta property=\"og:description\" content=\"{&#8220;lastseen&#8221;:&#8221;&#8221;,&#8221;description&#8221;:&#8221;OpenTelemetry eBPF Instrumentation provides eBPF instrumentation based on the OpenTelemetry standard. 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