CVE-2026-45683: CWE-127: Buffer Under-read in open-telemetry opentelemetry-ebpf-instrumentation
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.
AI Analysis
Technical Summary
OpenTelemetry eBPF Instrumentation versions before 0.9.0 contain a buffer under-read vulnerability (CWE-127) due to improper use of bpf_probe_read instead of bpf_probe_read_user when reading user-controlled ioctl pointers in the Java TLS ioctl probe. This flaw allows a local instrumented process to read kernel memory into telemetry data, potentially exposing sensitive information (CWE-200). The vulnerability is addressed in version 0.9.0.
Potential Impact
An attacker with local instrumentation capabilities can cause kernel memory to be copied into telemetry data, potentially exposing sensitive kernel memory contents. The CVSS score of 3.8 (low severity) reflects limited impact as exploitation requires local privileges and results in information disclosure without integrity or availability impact. There are no known exploits in the wild.
Mitigation Recommendations
Upgrade to OpenTelemetry eBPF Instrumentation version 0.9.0 or later, where this vulnerability is patched. Since the vendor advisory confirms the fix in version 0.9.0, applying this official update fully mitigates the issue. No additional mitigation steps are indicated.
CVE-2026-45683: CWE-127: Buffer Under-read in open-telemetry opentelemetry-ebpf-instrumentation
Description
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 v3.1
Score 3.8low
Affected software
pkg:github/open-telemetry/opentelemetry-ebpf-instrumentationRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
OpenTelemetry eBPF Instrumentation versions before 0.9.0 contain a buffer under-read vulnerability (CWE-127) due to improper use of bpf_probe_read instead of bpf_probe_read_user when reading user-controlled ioctl pointers in the Java TLS ioctl probe. This flaw allows a local instrumented process to read kernel memory into telemetry data, potentially exposing sensitive information (CWE-200). The vulnerability is addressed in version 0.9.0.
Potential Impact
An attacker with local instrumentation capabilities can cause kernel memory to be copied into telemetry data, potentially exposing sensitive kernel memory contents. The CVSS score of 3.8 (low severity) reflects limited impact as exploitation requires local privileges and results in information disclosure without integrity or availability impact. There are no known exploits in the wild.
Mitigation Recommendations
Upgrade to OpenTelemetry eBPF Instrumentation version 0.9.0 or later, where this vulnerability is patched. Since the vendor advisory confirms the fix in version 0.9.0, applying this official update fully mitigates the issue. No additional mitigation steps are indicated.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-05-12T21:59:25.667Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a1efb6ae29bf47b50db3b40
Added to database: 06/02/2026, 15:48:58 UTC
Last enriched: 06/02/2026, 16:04:35 UTC
Last updated: 07/31/2026, 19:22:59 UTC
Views: 73
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