{"id":59229,"date":"2026-06-02T10:39:30","date_gmt":"2026-06-02T10:39:30","guid":{"rendered":"https:\/\/zero.redgem.net\/?p=59229"},"modified":"2026-06-02T10:39:30","modified_gmt":"2026-06-02T10:39:30","slug":"opentelemetry-ebpf-instrumentation-unsafe-fastelf-parsing-allows-malformed-elf-to-crash-agent","status":"publish","type":"post","link":"https:\/\/zero.redgem.net\/?p=59229","title":{"rendered":"OpenTelemetry eBPF Instrumentation: Unsafe fastelf parsing allows malformed ELF to crash agent_CVE-2026-45676"},"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&#8217;s replacement ELF parser trusts section offsets, counts, and string offsets from the executable file. 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This issue has been patched in version 0.9.0.&#8221;,&#8221;published&#8221;:&#8221;2026-06-02T15:23:50.406Z&#8221;,&#8221;modified&#8221;:&#8221;2026-06-02T15:23:50.406Z&#8221;,&#8221;type&#8221;:&#8221;cve&#8221;,&#8221;title&#8221;:&#8221;OpenTelemetry eBPF Instrumentation: Unsafe fastelf parsing allows malformed ELF to crash agent&#8221;,&#8221;source&#8221;:&#8221;GitHub_M&#8221;,&#8221;references&#8221;:&#8221;https:\/\/github.com\/open-telemetry\/opentelemetry-ebpf-instrumentation\/security\/advisories\/GHSA-wp73-mwgf-4jq9\\nhttps:\/\/github.com\/open-telemetry\/opentelemetry-ebpf-instrumentation\/releases\/tag\/v0.9.0&#8243;,&#8221;id&#8221;:&#8221;CVE-2026-45676&#8243;,&#8221;bulletinFamily&#8221;:&#8221;&#8221;,&#8221;cwe&#8221;:[&#8220;CWE-20&#8243;,&#8221;CWE-248&#8243;],&#8221;cvelist&#8221;:null,&#8221;sourceData&#8221;:&#8221;open-telemetry opentelemetry-ebpf-instrumentation \\u003c 0.9.0&#8243;,&#8221;sourceHref&#8221;:&#8221;&#8221;,&#8221;cvss&#8221;:{&#8220;score&#8221;:5.5,&#8221;severity&#8221;:&#8221;MEDIUM&#8221;,&#8221;vector&#8221;:&#8221;CVSS:3.1\/AV:L\/AC:L\/PR:L\/UI:N\/S:U\/C:N\/I:N\/A:H&#8221;,&#8221;version&#8221;:&#8221;3.1&#8243;},&#8221;cvss2&#8243;:{},&#8221;cvss3&#8243;:{&#8220;version&#8221;:&#8221;&#8221;,&#8221;vectorString&#8221;:&#8221;&#8221;,&#8221;baseScore&#8221;:0,&#8221;baseSeverity&#8221;:&#8221;&#8221;,&#8221;attackVector&#8221;:&#8221;&#8221;,&#8221;attackComplexity&#8221;:&#8221;&#8221;,&#8221;privilegesRequired&#8221;:&#8221;&#8221;,&#8221;userInteraction&#8221;:&#8221;&#8221;,&#8221;scope&#8221;:&#8221;&#8221;,&#8221;confidentialityImpact&#8221;:&#8221;&#8221;,&#8221;integrityImpact&#8221;:&#8221;&#8221;,&#8221;availabilityImpact&#8221;:&#8221;&#8221;,&#8221;cvssV3&#8243;:{&#8220;version&#8221;:&#8221;&#8221;,&#8221;vectorString&#8221;:&#8221;&#8221;,&#8221;baseScore&#8221;:0,&#8221;baseSeverity&#8221;:&#8221;&#8221;,&#8221;attackVector&#8221;:&#8221;&#8221;,&#8221;attackComplexity&#8221;:&#8221;&#8221;,&#8221;privilegesRequired&#8221;:&#8221;&#8221;,&#8221;userInteraction&#8221;:&#8221;&#8221;,&#8221;scope&#8221;:&#8221;&#8221;,&#8221;confidentialityImpact&#8221;:&#8221;&#8221;,&#8221;integrityImpact&#8221;:&#8221;&#8221;,&#8221;availabilityImpact&#8221;:&#8221;&#8221;}},&#8221;href&#8221;:&#8221;&#8221;,&#8221;category_name&#8221;:&#8221;CVE&#8221;,&#8221;post_link&#8221;:&#8221;&#8221;,&#8221;product&#8221;:&#8221;opentelemetry-ebpf-instrumentation&#8221;,&#8221;version&#8221;:&#8221;\\u003c 0.9.0&#8243;,&#8221;vendor&#8221;:&#8221;open-telemetry&#8221;,&#8221;ai_description&#8221;:&#8221;&#8221;,&#8221;ai_severity&#8221;:&#8221;&#8221;,&#8221;ai_vendor&#8221;:&#8221;&#8221;,&#8221;ai_product&#8221;:&#8221;&#8221;,&#8221;ai_version&#8221;:&#8221;&#8221;,&#8221;ai_score&#8221;:0}<\/p>\n","protected":false},"excerpt":{"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&#8217;s replacement ELF parser trusts section offsets, counts, and string&#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":[6,8,70,12,21,13,7,11,5],"class_list":["post-59229","post","type-post","status-publish","format-standard","hentry","category-category_cve","tag-cve","tag-cvss","tag-cvss-55","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: Unsafe fastelf parsing allows malformed ELF to crash agent_CVE-2026-45676 - 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=59229\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"OpenTelemetry eBPF Instrumentation: Unsafe fastelf parsing allows malformed ELF to crash agent_CVE-2026-45676 - 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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