CVE•Published 2026-06-02•Modified 2026-06-03•0 articles on news•5 live references•NVD data

CVE-2026-45684Opentelemetry · Ebpf_instrumentation

Vulnerability data via NVD (ingested)

CVSS v3.1

4.9

MEDIUM

CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L

EPSS percentile

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Weaknesses (CWE)

CWE-126Buffer Over-read CWE-787Out-of-bounds Write

Description

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.

Timeline

Published 2026-06-02

Modified 2026-06-03

External references

NVD MITRE Exploit-DB Sploitus VulnCheck

Search for exposed instances

Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).

Shodan · vuln tag0 hosts

vuln:CVE-2026-45684

Hosts Shodan has explicitly fingerprinted as vulnerable.

Shodan · product

product:"Opentelemetry Ebpf Instrumentation"

All exposed Opentelemetry Ebpf Instrumentation instances — cross-reference with the CVE's affected-version range.

Shodan · banner/body mention

http.html:"Ebpf Instrumentation"

HTTP body or banner mentions "Ebpf Instrumentation" — catches deploys Shodan didn't identify as a product.

More intel sources (5)

Shodan report

vuln:CVE-2026-45684