Low 3.8Published Jun 2, 2026

CVE-2026-45683OpenTelemetry eBPF Instrumentation: Java TLS ioctl kprobe allows kernel memory disclosure

Updated under an hour ago (Oct 26, 2026, 7:50 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, the Java TLS ioctl probe reads user-controlled ioctl pointers with bpf_probe_read instead of bpf_probe_read_user. An instrumented local process can therefore point OBI at kernel memory and cause that memory to be copied into telemetry. This issue has been patched in version 0.9.0.

CVSS: 3.8 LOW (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N
Weakness (CWE): CWE-127, CWE-200
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-fjq3-ffvr-vm46	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.