CVE-2026-45686OpenTelemetry eBPF Instrumentation: Memcached payload length overflow can crash OBI

Beschreibung

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.

Daten: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Wiedergegeben wie in der Quelle, auf Englisch.

Betroffene Produkte und Versionen

Referenzen und Patches

• https://github.com/open-telemetry/opentelemetry-ebpf-instrumentation/security/advisories/GHSA-43g7-cwr8-q3jh ExploitVendor Advisory
• https://github.com/open-telemetry/opentelemetry-ebpf-instrumentation/releases/tag/v0.9.0 ProductRelease Notes