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OpenAdvisories
High · 8.4 CVE-2026-41433 EUVD-2026-25620GHSA-8gmg-3w2q-65f4GO-2026-5253

OpenTelemetry eBPF Instrumentation: Privileged Java agent injection allows arbitrary host file overwrite via untrusted TMPDIR

Published Apr 24, 2026 · Updated Apr 25, 2026 · Assigned by GitHub_M

Description

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 boundary escape and symlink-based file clobbering. This vulnerability is fixed in 0.8.0.

Affected products

VendorProductAffectedFixed
open-telemetry opentelemetry-ebpf-instrumentation >= 0.4.0, < 0.8.0 —

Fixed in Linux distributions

Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.

ReleasePackageFixed inAdvisory
openSUSE Leap 16.0 govulncheck-vulndb 0.0.20260723T184607-160000.1.1 openSUSE-SU-2026:21483-1

Affected packages

EcosystemPackageAffectedFixedRecord
Go go.opentelemetry.io/obi >= 0.4.0, < 0.8.0 0.8.0 GHSA-8gmg-3w2q-65f4

Advisories 1

References