reject grouping file-exporter traversal through Windows path separators

F-OTELCOLLECTORCONTRIB-001

Public snapshot: 26 Sep 2026. Status, releases and attribution belong to each source below; none is inferred from another record.

Recorded evidence

—score not recorded

open-telemetry/opentelemetry-collector-contribReported fixopen-telemetry/opentelemetry-collector-contrib

reject grouping file-exporter traversal through Windows path separators

fixed in public source; rollout not reverified

details

Finding IDs: F-OTELCOLLECTORCONTRIB-001
Status: fixed in public source; rollout not reverified
Disclosure date: 29 Jun 2026
Note: PR #49195 normalizes Windows backslashes before path containment checks and adds traversal tests. This matches the reported fileexporter path, not the separate Collector snappy issue. Release inclusion and a public advisory assignment were not independently checked.

F-OTELCOLLECTORCONTRIB-001: File / path escapes. Windows path handling escapes the intended file boundary. Reviewed 24 Sep 2026. Mechanism assessed by 1seal.

Mechanism source for F-OTELCOLLECTORCONTRIB-001

Security area (1seal assessment): Authorization. A grouping value must not select an output file outside the configured directory. Reviewed 23 Sep 2026.

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