Machine-written summary
Summary written by Claude Haiku from the source advisory. Not reviewed by a person.
Go module go.opentelemetry.io/obi versions 0.7.0 up to but not including 0.9.0 are affected. When log injection is enabled, a crafted multi-segment writev call in an instrumented process can make the log enricher read and overwrite memory beyond the first buffer segment, which may leak data into log events, corrupt output, or destabilize the process. Upgrade to version 0.9.0 or later. The source gives few details on attacker prerequisites beyond a local writev pattern in the instrumented process.
Not analysed yet
We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.
Severity and exploitation
| Score | Rating | CVSS | Vector | Source |
|---|---|---|---|---|
| 4.9 | Medium | 3.1 | CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L | CNA (GitHub_M) |
- CISA KEV Not listed.
- EPSS 0.0017, the 6th percentile, on 7 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.
Timeline
- 31 Oct 2026, 15:06 UTC First seen by agentprime
- 31 Oct 2026, 15:06 UTC Confirmed by OSV
Sources
- GitHub Advisory Database: GHSA-vvmg-8mjr-g6q3
- OSV: GHSA-vvmg-8mjr-g6q3
- github.com/open-telemetry/opentelemetry-ebpf-instrumentation/security/advisories/GHSA-vvmg-8mjr-g6q3
- nvd.nist.gov/vuln/detail/CVE-2026-45684
- github.com/open-telemetry/opentelemetry-ebpf-instrumentation
- github.com/open-telemetry/opentelemetry-ebpf-instrumentation/releases/tag/v0.9.0