CVE-2026-45683 Details
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.
A vulnerability in the OpenTelemetry eBPF Instrumentation's Java TLS ioctl probe allows for local kernel memory disclosure. This issue arises because the probe reads user-controlled ioctl pointers using 'bpf_probe_read' instead of the safer 'bpf_probe_read_user'. As a result, an instrumented process can direct the OpenTelemetry Bytecode Instrumentation (OBI) at kernel memory, leading to unauthorized memory access. The vulnerability is present in versions prior to 0.9.0.
Users can upgrade to OpenTelemetry eBPF Instrumentation version 0.9.0 or later, where this vulnerability has been patched.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Jun 2, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/open-telemetry/opentelemetry-ebpf-instrumentation/security/advisories/GHSA-fjq3-ffvr-vm46 | CISA-ADP | ExploitVendor Advisory |
| https://github.com/open-telemetry/opentelemetry-ebpf-instrumentation/releases/tag/v0.9.0 | [email protected] | ProductRelease Notes |
| https://github.com/open-telemetry/opentelemetry-ebpf-instrumentation/security/advisories/GHSA-fjq3-ffvr-vm46 | [email protected] | ExploitVendor Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-127 | Buffer Under-read | [email protected] |
| CWE-200 | Exposure of Sensitive Information to an Unauthorized Actor | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| opentelemetry ebpf instrumentation | < 0.9.0 |
CPE
Remediation
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Change History
6 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jul 22, 2026 | CVE Translated | [email protected] |
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Jun 3, 2026 | Initial Analysis | [email protected] |
| Jun 2, 2026 | CVE Modified | CISA-ADP |
| Jun 2, 2026 | New CVE Received | [email protected] |