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Libextractor and privileged processes: an open question

A message published on September 26, 2026 questions whether GNU libextractor is suitable for use in setuid, setgid, or other privileged processes. The excerpt does not detail the flaw cited in the title; consult and verify the original discussion before drawing conclusions.

A reply in the oss-sec feed, published by Simon McVittie on September 26, 2026, asks whether GNU libextractor was advertised as safe for use in setuid, setgid, or other privileged processes. The available text is an automated translation.

The author cites the library’s description as a tool for extracting file metadata, used by developers of file-sharing networks, file managers, and web-indexing robots. They say they do not immediately see why a setuid program should use it and express concern about possible privilege escalation.

The excerpt does not explain the technical details of the flaw referenced in the title, establish its impact, or provide a fix. It is therefore insufficient to confirm the vulnerability, its scope, or the risk in any particular installation.

To assess the issue, consult the original message and the rest of the discussion in the oss-sec archive; compare its claims with official advisories and the installed version. When reviewing a system, determine whether privileged code calls the library and look for applicable security guidance, without assuming that the title alone proves exposure.

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