OpenTelemetry eBPF Instrumentation provides eBPF instrumentation based on the OpenTelemetry standard. From version 0.7.0 to before version 0.9.0, a remotely reachable integer overflow in OBI's memcached text protocol parser can crash the OBI process and cause denial of service. When parsing memcached storage commands such as set, add, replace, append, prepend, or cas, OBI accepts extremely large <bytes> values and adds the payload delimiter length without checking for overflow. A crafted request with <bytes> set to math.MaxInt or math.MaxInt-1 causes the computed payload length to wrap negative and triggers a runtime panic in LargeBufferReader.Peek. This issue has been patched in version 0.9.0.

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Advisories
Source ID Title
Github GHSA Github GHSA GHSA-43g7-cwr8-q3jh OpenTelemetry eBPF Instrumentation: Memcached payload length overflow can crash OBI
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Wed, 03 Jun 2026 17:00:00 +0000

Type Values Removed Values Added
First Time appeared Opentelemetry ebpf Instrumentation
CPEs cpe:2.3:a:opentelemetry:ebpf_instrumentation:*:*:*:*:*:go:*:*
Vendors & Products Opentelemetry ebpf Instrumentation

Wed, 03 Jun 2026 14:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Tue, 02 Jun 2026 17:00:00 +0000

Type Values Removed Values Added
First Time appeared Opentelemetry
Opentelemetry opentelemetry-ebpf-instrumentation
Vendors & Products Opentelemetry
Opentelemetry opentelemetry-ebpf-instrumentation

Tue, 02 Jun 2026 15:45:00 +0000

Type Values Removed Values Added
Description OpenTelemetry eBPF Instrumentation provides eBPF instrumentation based on the OpenTelemetry standard. From version 0.7.0 to before version 0.9.0, a remotely reachable integer overflow in OBI's memcached text protocol parser can crash the OBI process and cause denial of service. When parsing memcached storage commands such as set, add, replace, append, prepend, or cas, OBI accepts extremely large <bytes> values and adds the payload delimiter length without checking for overflow. A crafted request with <bytes> set to math.MaxInt or math.MaxInt-1 causes the computed payload length to wrap negative and triggers a runtime panic in LargeBufferReader.Peek. This issue has been patched in version 0.9.0.
Title OpenTelemetry eBPF Instrumentation: Memcached payload length overflow can crash OBI
Weaknesses CWE-190
References
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-06-03T13:48:21.673Z

Reserved: 2026-05-13T04:38:01.164Z

Link: CVE-2026-45686

cve-icon Vulnrichment

Updated: 2026-06-03T13:48:15.361Z

cve-icon NVD

Status : Analyzed

Published: 2026-06-02T16:16:43.493

Modified: 2026-06-03T16:52:47.837

Link: CVE-2026-45686

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-06-02T16:45:13Z

Weaknesses