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4.9 Medium

CVE-2026-45684 OpenTelemetry eBPF Instrumentation provides eBPF instrumentation based on the OpenTelemetry standard

Description

OpenTelemetry eBPF Instrumentation provides eBPF instrumentation based on the OpenTelemetry standard. From version 0.7.0 to before version 0.9.0, OBI's log enricher mishandles writev buffers by reading only the first iovec entry but using the total iov_iter.count as the copy length. When log injection is enabled, a crafted multi-segment writev call can make OBI read and overwrite memory beyond the first segment. This issue has been patched in version 0.9.0.

Affected products and versions

Product Affected versions Fixed in
opentelemetry-ebpf-instrumentation 0.7 0.7.0 → < 0.9.0 0.9.0

References

Timeline

  1. Published
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Other CVEs of opentelemetry-ebpf-instrumentation

The 11 CVEs of opentelemetry-ebpf-instrumentation →
CVE-2026-45686 OpenTelemetry eBPF Instrumentation provides eBPF instrumentation based on the OpenTelemetry standard 7.5 High CVE-2026-45685 OpenTelemetry eBPF Instrumentation provides eBPF instrumentation based on the OpenTelemetry standard 7.5 High CVE-2026-45683 OpenTelemetry eBPF Instrumentation provides eBPF instrumentation based on the OpenTelemetry standard 3.8 Low CVE-2026-45681 OpenTelemetry eBPF Instrumentation provides eBPF instrumentation based on the OpenTelemetry standard 5.9 Medium
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