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.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| open-telemetry | opentelemetry-ebpf-instrumentation | >= 0.7.0, < 0.9.0 | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP7 | alloy | 1.17.1-150700.15.23.1 | SUSE-SU-2026:2824-1 |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 16.0 | alloy | 1.17.0-160000.1.1 | SUSE-SU-2026:22575-1 |
| SLES 16.0 | alloy | 1.17.0-160000.1.1 | SUSE-SU-2026:22575-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | alloy | 1.17.0-1.1 | openSUSE-SU-2026:11053-1 |
| openSUSE Leap 16.0 | alloy | 1.17.0-160000.1.1 | openSUSE-SU-2026:21251-1 |
| openSUSE Leap 16.0 | govulncheck-vulndb | 0.0.20260723T184607-160000.1.1 | openSUSE-SU-2026:21483-1 |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| Go | go.opentelemetry.io/obi | >= 0.7.0, < 0.9.0 | 0.9.0 | GHSA-43g7-cwr8-q3jh |
Advisories 5
- openSUSE-SU-2026:21483-1 Security update for govulncheck-vulndb SUSE / openSUSE Security Updates · Jul 31, 2026
- SUSE-SU-2026:22575-1 Security update for alloy SUSE / openSUSE Security Updates · Jul 15, 2026
- SUSE-SU-2026:2824-1 Security update for alloy SUSE / openSUSE Security Updates · Jul 10, 2026
- openSUSE-SU-2026:21251-1 Security update for alloy SUSE / openSUSE Security Updates · Jul 9, 2026
- openSUSE-SU-2026:11053-1 alloy-1.17.0-1.1 on GA media SUSE / openSUSE Security Updates · Jun 19, 2026