CVE-2026-45684

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.

CVSS v3 4.9 MEDIUM

4.9^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.4 / Impact : 3.4

Attack Vector LOCAL

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact LOW

Scope UNCHANGED

References

Link	Resource
https://github.com/open-telemetry/opentelemetry-ebpf-instrumentation/releases/tag/v0.9.0	Product Release Notes
https://github.com/open-telemetry/opentelemetry-ebpf-instrumentation/security/advisories/GHSA-vvmg-8mjr-g6q3	Exploit Vendor Advisory
https://github.com/open-telemetry/opentelemetry-ebpf-instrumentation/security/advisories/GHSA-vvmg-8mjr-g6q3	Exploit Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:opentelemetry:ebpf_instrumentation:*:*:*:*:*:go:*:*

History

No history.

Information

Published : 2026-06-02 16:16

Updated : 2026-07-22 19:10

NVD link : CVE-2026-45684

Mitre link : CVE-2026-45684

CVE.ORG link : CVE-2026-45684

JSON object : View

Products Affected

opentelemetry

ebpf_instrumentation

CWE

CWE-126

Buffer Over-read

CWE-787

Out-of-bounds Write

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