CVE-2026-45676: OpenTelemetry eBPF Instrumentation: Unsafe fastelf parsing allows malformed ELF to crash agent

May 18, 2026 (updated June 9, 2026)

OBI’s replacement ELF parser trusts section offsets, counts, and string offsets from the executable file. A crafted local ELF can make OBI dereference invalid section pointers or slice past string tables, causing the agent to panic while determining the process language.

References

github.com/advisories/GHSA-wp73-mwgf-4jq9
github.com/open-telemetry/opentelemetry-ebpf-instrumentation/releases/tag/v0.9.0
github.com/open-telemetry/opentelemetry-ebpf-instrumentation/security/advisories/GHSA-wp73-mwgf-4jq9
nvd.nist.gov/vuln/detail/CVE-2026-45676

Code Behaviors & Features

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