CVE-2026-45684

MEDIUM EPSS 6.8%
Published Jun 2, 20264w ago · Modified Jun 17, 20261w ago
5.3 CVSS 3.1
Medium
Find Similar
Published Jun 2, 2026 4w ago
Last Modified Jun 17, 2026 1w ago

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.

CVSS Details

Base Score
5.3
Exploitability
1.8
Impact
3.4
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality Low
Integrity Low
Availability Low

Threat Intelligence

EPSS Exploit Probability
6.8% percentile
Exploit & Patch Status
Public Exploit Known
No Patch Available

Weaknesses 2

CWE-126
CWE-787 Out-of-bounds Write Memory Safety

Affected Products 1

VendorProductVersionRange
opentelemetryebpf_instrumentation*≥0.7.0  –  <0.9.0

References 2

  • github.com https://github.com/open-telemetry/opentelemetry-ebpf-instrumentation/releases/tag/v0.9.0
    ProductRelease Notes
  • github.com https://github.com/open-telemetry/opentelemetry-ebpf-instrumentation/security/advisories/GHSA-vvmg-8mjr-g6q3
    ExploitVendor Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.