Medium 5.5Published Jun 2, 2026

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

Updated under an hour ago (Oct 26, 2026, 7:30 PM ET)

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It affects open-telemetry opentelemetry-ebpf-instrumentation and 1 other product. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for open-telemetry opentelemetry-ebpf-instrumentation

Exploited in the last 30 days

OpenTelemetry eBPF Instrumentation provides eBPF instrumentation based on the OpenTelemetry standard. Prior to version 0.9.0, 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. This issue has been patched in version 0.9.0.

CVSS: 5.5 MEDIUM (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weakness (CWE): CWE-20, CWE-248
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Analyzed
Record last updated: Jun 2, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

open-telemetry opentelemetry-ebpf-instrumentation open_telemetry:opentelemetry_ebpf_instrumentation (from the name)	before 0.9.0	CNA record
opentelemetry ebpf_instrumentation opentelemetry:ebpf_instrumentation	before 0.9.0	NVD

References

References

https://github.com/open-telemetry/opentelemetry-ebpf-instrumentation/security/advisories/GHSA-wp73-mwgf-4jq9	x-refsource-confirm, exploit, vendor-advisory
https://github.com/open-telemetry/opentelemetry-ebpf-instrumentation/releases/tag/v0.9.0	x-refsource-misc, product, release-notes

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.