CVE-2026-41433: OpenTelemetry eBPF Instrumentation provides eBPF instrumentation based on the OpenTelemetry standard

Routine

HIGH 8.4UPGRADE

CVE-2026-41433 is a high-severity flaw (CVSS 8.4) affecting opentelemetry 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. From 0.4.0 to before 0.8.0, a flaw in the Java agent injection path allows a local attacker controlling a Java workload to overwrite arbitrary host files when Java injection is enabled and OBI is running with elevated privileges. The injector trusted TMPDIR from the target process and used unsafe file creation semantics, enabling both filesystem

Why this priority

High severity
Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	8.4 (High)
Attack vector	Local
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.2% (top 91%)
CISA exploited list	No
Weakness	CWE-22, CWE-59
Published	2026-04-24
Last modified	2026-10-26

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

Last updated 2026-10-26 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-04-24 20:16 UTCPublished CVE record published
2026-10-26 22:10 UTCUpdated Record last modified

opentelemetry opentelemetry ebpf instrumentation UPGRADE

Affected: >= 0.4.0 and < 0.8.0

Fixed in: 0.8.0

Safe to downgrade to: a release before 0.4.0

1. Check installed version

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

2. UPGRADE to 0.8.0 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade opentelemetry-ebpf-instrumentation

Note

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

3. If no update is available yet, DOWNGRADE to a release before 0.4.0 (Debian / Ubuntu)

apt-cache madison opentelemetry-ebpf-instrumentation sudo apt install opentelemetry-ebpf-instrumentation=<VERSION_BEFORE_0.4.0> sudo apt-mark hold opentelemetry-ebpf-instrumentation

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list opentelemetry-ebpf-instrumentation sudo dnf downgrade opentelemetry-ebpf-instrumentation-<VERSION_BEFORE_0.4.0> sudo dnf versionlock add opentelemetry-ebpf-instrumentation

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

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-2026-41433?

opentelemetry ebpf instrumentation: upgrade to 0.8.0. Exact commands for each OS are on this page.

Is CVE-2026-41433 being exploited?

CVE-2026-41433 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-2026-41433 affect?

CVE-2026-41433 affects opentelemetry ebpf instrumentation. Severity is high (CVSS 8.4). OpenTelemetry eBPF Instrumentation provides eBPF instrumentation based on the OpenTelemetry standard. From 0.4.0 to before 0.8.0, a flaw in the Java agent injection path allows a local attacker controlling a Java workload to overwrite arbit

How urgent is CVE-2026-41433?

Priority 37/100. High severity; Public exploit reference

Software pages

Java vulnerabilities

References

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