CVE-2026-45676CWE-20CWE-248

OpenTelemetry eBPF Instrumentation: Unsafe fastelf parsing allows malformed ELF to crash agent

Medium · published June 2, 2026

CVSS v3.1
5.5
EPSS
0%
Percentile
5.6
In the wild
Unconfirmed
What it is

OpenTelemetry eBPF Instrumentation provides eBPF instrumentation based on the OpenTelemetry standard. Prior to version 0.9.0, OBI's replacement ELF parser trusts section offsets, counts, and string offsets from the executable file. A crafted local ELF can make OBI dereference invalid section pointers or slice past string tables, causing the agent to panic while determining the process language. This issue has been patched in version 0.9.0.

The record
Technical detail
CVSS v3.1
5.5 · MEDIUM
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.00166 · 5.6th percentile
Weaknesses
CWE-20 · Improper Input Validation; CWE-248 · Uncaught Exception
Published
2026-06-02T15:23Z
EPSS history
Timeline
  • 02 JUN 15:23Z
    OpenTelemetry eBPF Instrumentation: Unsafe fastelf parsing allows malformed ELF to crash agent
    cvelistv5