CVE-2026-45683: OpenTelemetry eBPF Instrumentation provides eBPF instrumentation based on the OpenTelemetry standard

Q: How do I fix CVE-2026-45683?

ebpf instrumentation: upgrade to 0.9.0. Exact commands for each OS are on this page.

Q: Is CVE-2026-45683 being exploited?

CVE-2026-45683 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-45683 affect?

CVE-2026-45683 affects ebpf instrumentation. Severity is low (CVSS 3.8). 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.

Q: How urgent is CVE-2026-45683?

Priority 20/100. Public exploit reference

Routine

LOW 3.8UPGRADE

CVE-2026-45683 is a low-severity flaw (CVSS 3.8) affecting ebpf instrumentation. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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.

Why this priority

Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	3.8 (Low)
Attack vector	Local
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.2% (top 93%)
CISA exploited list	No
Weakness	CWE-127, CWE-200
Published	2026-06-02
Last modified	2026-07-22

Publisher (CNA): GitHub, Inc. · Vendor: opentelemetry

Last updated 2026-07-22 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-06-02 16:16 UTCPublished CVE record published
2026-07-22 19:10 UTCUpdated Record last modified

opentelemetry ebpf instrumentation UPGRADE

Affected: < 0.9.0

Fixed in: 0.9.0

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy ebpf-instrumentation || rpm -q ebpf-instrumentation || ebpf-instrumentation --version

2. UPGRADE to 0.9.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade ebpf-instrumentation

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade ebpf-instrumentation

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-45683?

ebpf instrumentation: upgrade to 0.9.0. Exact commands for each OS are on this page.

Is CVE-2026-45683 being exploited?

CVE-2026-45683 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-45683 affect?

CVE-2026-45683 affects ebpf instrumentation. Severity is low (CVSS 3.8). 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.

How urgent is CVE-2026-45683?

Priority 20/100. Public exploit reference

Software pages

Java vulnerabilities

Related CVEs

CVE-2026-45685 HIGH 7.5 UPGRADE OpenTelemetry eBPF Instrumentation provides eBPF instrumentation based on the OpenTelemetry standard
CVE-2026-45678 HIGH 7.5 UPGRADE OpenTelemetry eBPF Instrumentation provides eBPF instrumentation based on the OpenTelemetry standard
CVE-2026-45686 HIGH 7.5 UPGRADE OpenTelemetry eBPF Instrumentation provides eBPF instrumentation based on the OpenTelemetry standard
CVE-2026-45680 MEDIUM 5.9 UPGRADE OpenTelemetry eBPF Instrumentation provides eBPF instrumentation based on the OpenTelemetry standard
CVE-2026-45679 MEDIUM 6.5 UPGRADE OpenTelemetry eBPF Instrumentation provides eBPF instrumentation based on the OpenTelemetry standard

References

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