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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.

PUBLISHED Reserved 2026-05-13 | Published 2026-06-02 | Updated 2026-06-03 | Assigner GitHub_M




HIGH: 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Problem types

CWE-190: Integer Overflow or Wraparound

Product status

>= 0.7.0, < 0.9.0
affected

References

github.com/...tation/security/advisories/GHSA-43g7-cwr8-q3jh exploit

github.com/...tation/security/advisories/GHSA-43g7-cwr8-q3jh

github.com/...metry-ebpf-instrumentation/releases/tag/v0.9.0

cve.org (CVE-2026-45686)

nvd.nist.gov (CVE-2026-45686)

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