{"cve":"CVE-2026-45684","nvd":{"published":"2026-06-02T16:16:43.187","modified":"2026-07-22T19:10:00.120","status":"Analyzed","description":"OpenTelemetry eBPF Instrumentation provides eBPF instrumentation based on the OpenTelemetry standard. From version 0.7.0 to before version 0.9.0, OBI's log enricher mishandles writev buffers by reading only the first iovec entry but using the total iov_iter.count as the copy length. When log injection is enabled, a crafted multi-segment writev call can make OBI read and overwrite memory beyond the first segment. This issue has been patched in version 0.9.0.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L","score":5.3},"cwes":["CWE-126","CWE-787"],"references":["https://github.com/open-telemetry/opentelemetry-ebpf-instrumentation/releases/tag/v0.9.0","https://github.com/open-telemetry/opentelemetry-ebpf-instrumentation/security/advisories/GHSA-vvmg-8mjr-g6q3","https://github.com/open-telemetry/opentelemetry-ebpf-instrumentation/security/advisories/GHSA-vvmg-8mjr-g6q3"],"products":["opentelemetry:ebpf_instrumentation"],"source":"nvd","synced_at":"2026-10-19T22:37:48.043517290+00:00"},"epss":{"cve":"CVE-2026-45684","score":0.00172,"percentile":0.06549,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-vvmg-8mjr-g6q3","url":"https://osv.dev/vulnerability/GHSA-vvmg-8mjr-g6q3","summary":"OpenTelemetry eBPF Instrumentation: Log enricher writev path can overread and overwrite user buffers","modified":"2026-06-25T23:11:20.498215629Z","packages":[{"ecosystem":"Go","name":"go.opentelemetry.io/obi","purl":"pkg:golang/go.opentelemetry.io/obi","ranges":[">=0.7.0 <0.9.0"],"fixed":["0.9.0"]}]},{"id":"GO-2026-5677","url":"https://osv.dev/vulnerability/GO-2026-5677","summary":"OpenTelemetry eBPF Instrumentation: Log enricher writev path can overread and overwrite user buffers in go.opentelemetry.io/obi","modified":"2026-06-25T23:01:25.608382149Z","packages":[{"ecosystem":"Go","name":"go.opentelemetry.io/obi","purl":"pkg:golang/go.opentelemetry.io/obi","ranges":[">=0.7.0 <0.9.0"],"fixed":["0.9.0"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}