CVE-2026-45686
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 values and adds the payload delimiter length without checking for overflow. A crafted request with 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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
go.opentelemetry.io/obiGo | >= 0.7.0, < 0.9.0 | 0.9.0 |
Affected products
3>= 0.7.0, < 0.9.0+ 1 more
- (no CPE)range: >= 0.7.0, < 0.9.0
- cpe:2.3:a:opentelemetry:ebpf_instrumentation:*:*:*:*:*:go:*:*range: >=0.7.0,<0.9.0
Patches
Vulnerability mechanics
References
4- github.com/open-telemetry/opentelemetry-ebpf-instrumentation/security/advisories/GHSA-43g7-cwr8-q3jhnvdExploitVendor AdvisoryWEB
- github.com/advisories/GHSA-43g7-cwr8-q3jhghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2026-45686ghsaADVISORY
- github.com/open-telemetry/opentelemetry-ebpf-instrumentation/releases/tag/v0.9.0nvdProductRelease NotesWEB
News mentions
1- OpenTelemetry eBPF Instrumentation: 10 CVEs Disclosed in a Single AdvisoryVypr Intelligence · May 18, 2026