Medium severity4.9GHSA Advisory· Published Jun 2, 2026· Updated Jun 3, 2026
CVE-2026-45684
CVE-2026-45684
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
go.opentelemetry.io/obiGo | >= 0.7.0, < 0.9.0 | 0.9.0 |
Affected products
1- Range: >= 0.7.0, < 0.9.0
Patches
Vulnerability mechanics
References
4- github.com/open-telemetry/opentelemetry-ebpf-instrumentation/security/advisories/GHSA-vvmg-8mjr-g6q3nvdExploitVendor AdvisoryWEB
- github.com/advisories/GHSA-vvmg-8mjr-g6q3ghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2026-45684ghsaADVISORY
- github.com/open-telemetry/opentelemetry-ebpf-instrumentation/releases/tag/v0.9.0nvdProductRelease NotesWEB
News mentions
1- OpenTelemetry eBPF Instrumentation: 10 CVEs Disclosed in a Single AdvisoryVypr Intelligence · May 18, 2026